What do you think a ion is
Answers
Related Questions
How many moles of oxygen are required to produce 37.15 g CO2? 37.15 g CO2 = mol O2
Answers
Answer:
0.84 moles of oxygen are required.
Explanation:
Given data:
Mass of CO₂ produced = 37.15 g
Number of moles of oxygen = ?
Solution:
Chemical equation:
C + O₂ → CO₂
Number of moles of CO₂:
Number of moles = mass/molar mass
Number of moles = 37.15 g/ 44 g/mol
Number of moles = 0.84 mol
Now we will compare the moles of oxygen and carbon dioxide.
CO₂ : O₂
1 : 1
0.84 : 0.84
0.84 moles of oxygen are required.
What do carbon hydrogen and oxygen atoms have in common
Answers
Answer:
Carbon and oxygen are similar in a few ways. They are both elements, which are the fundamental building blocks of all matter. This means that they both have protons and electrons. They also both have neutrons
Explanation:
Nung hoàn toàn 173,8g Kali pemanganat để điều chế khí oxi. a/ Tính thể tích khí oxi thu được (đktc). b/ Đốt 12,4g photpho trong lọ chứa khí oxi trên. Sau khi phản ứng kết thúc đưa que đóm còn tàn đỏ vào ống nghiệm thì que đóm có bùng cháy không? Vì sao
Answers
Answer:
45
Explanation:
because the number is right
When the sun provides energy for photosynthesis an interaction with the task place. A. Atmosphere b. Biosphere c. Geosphere d. Hydrosphere
Answers
Answer:
b. biosphere
do to the plant being a plant it is in the biosphere
an increase in temperature affects the reaction rate by decreasing the velocities of particles that collide in the reaction. increasing the number of
Answers
An increase in temperature affects the reaction rate by increasing the velocities of particles that collide in the reaction, as well as increasing the number of collisions.
Here's a step-by-step methodology:
1. As temperature increases, particles gain more kinetic energy.
2. This increase in kinetic energy results in higher velocities for the particles involved in the reaction.
3. The higher velocities lead to more frequent collisions between particles.
4. More frequent collisions increase the probability of successful reactions, which in turn increases the reaction rate.
So, an increase in temperature leads to an increase in both the velocities of particles and the number of collisions, ultimately resulting in a higher reaction rate.
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A student reacts 3.0 g of magnesium with 2.5 mol / dm3 sulfuric acid.Calculate the minimum volume of sulfuric acid that reacts with all the magnesium
Answers
3.og idbj mass of mjemantg 2.oml
2. Evaluate :
(i) 28 : 23
Answers
Answer:
28/23
Explanation:
28 : 23
this is written as ,
28/23
u can convert into simplest form but in this question u can't so leave it as it is.
liverworts are non vascular plants in what type of place do they grow?
Answers
Answer:
Worldwide in damp places
Explanation:
Liverworts, like mosses and ferns, usually occur in moist or wet, cool, shady places such as along stream banks, on the terraces above streams, cool valleys
What happens when an ionic compound, lithium chloride, is placed in water?
Select one:
a. Solute particles in solution are uncharged.
b. The solute does not dissolve.
c. The molecule lithium chloride is found in solution.
d. The solute breaks apart into lithium and chloride ions.
Answers
Answer:
d
Explanation:
ionization takes place
The cultures of prehistoric humans are known mostly through the excavation of stone tools and other relatively imperishable artifacts. The early tool making traditions are often referred to as being paleolithic (literally "Old Stone Age). The Oldowan and Acheulian tool traditions of the first humans were the simplest applied research basic research Scientihe thought O philosophies technologies
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The cultures of prehistoric humans are primarily known through the excavation of stone tools and other durable artifacts, such as the Oldowan and Acheulian tool traditions.
Stone tools and imperishable artifacts serve as key archaeological evidence for understanding prehistoric cultures. Through meticulous excavation and analysis, archaeologists have been able to piece together the lifestyles, technological advancements, and social behaviors of early human societies. The term "paleolithic" refers to the Old Stone Age, a time when humans relied on stone tools as their primary implements.
The Oldowan tool tradition is considered the earliest stone tool industry, dating back around 2.6 million years ago. It is characterized by simple tools, such as choppers and scrapers, which were crafted by flaking off pieces from larger stones. These tools were primarily used for basic activities like butchering and processing animal carcasses.
Later, the Acheulian tool tradition emerged around 1.76 million years ago, representing an advancement in stone tool technology. Acheulian tools, such as handaxes and cleavers, were more refined and standardized, showcasing an increased level of sophistication in tool-making techniques. These tools served a wide range of purposes, including hunting, woodworking, and shaping raw materials.
By studying the Oldowan and Acheulian tool traditions, researchers gain valuable insights into the cognitive abilities, cultural development, and technological progress of early humans. The examination of these artifacts provides evidence of their adaptability, problem-solving skills, and the gradual refinement of their tool-making techniques over time.
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Relative formula mass of carbon manoxide
Answers
Explanation:
The relative formula mass of a substance, shown in grams, is called one mole of that substance. So one mole of carbon monoxide has a mass of 28 g, and one mole of sodium oxide has a mass of 62 g
Answer:
M(CO)=28 (g/mol)
Explanation:
M= 12+16=28 (g/mol)
what is the percent composition of salicylic acid?
Answers
The percent composition of salicylic acid is C7H6O3, or 60.87%C, 4.4%H, and 34.75%O
Draw the structure(s) of the major organic product(s) of the following reaction. 1. LiAlH4 / dry Et O -H 2. aqueous HCI • You do not have to consider stereochemistry. • If no reaction occurs, draw the organic starting material. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu
Answers
Structure and the reaction is in the attached photo.
Amides, RCONR'2, can be reduced to the amine, RCH2NR'2 by conversion of the C=O to -CH2-. Amides can be reduced by LiAlH4 but not the with the less reactive NaBH4. Some of the reagents are LiAlH4 / ether solvent, followed by water.
This reduction reaction is different from the different to that of other C=O compounds which reduce to alcohols like in esters.
Lithium aluminium hydride (LiAlH4) and sodium borohydride are the two most frequent sources of the hydride nucleophile (NaBH4).
The presence of a polar metal-hydrogen bond in these reagents acts as a source of hydride rather than the hydride anion, which is absent during this reaction. Since the Al-H bond in LiAlH4 is more polar and aluminium is less electronegative than boron, LiAlH4 is a more potent reducer.
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Please see my other questions
Answers
Answer: alr, gimme a sec
Answer:
Okay I will go look at it
How many base units are there in the code for one amino acid?
Answers
There are three base units in the code for one amino acid.
What are the 3 bases that code for an amino acid?
Codons are made up of any triplet combination of the four nitrogenous bases adenine (A), guanine (G), cytosine (C), or uracil (U). Of the 64 possible codon sequences, 61 specify the 20 amino acids that makeup proteins and three are stop signals.
What is the 3 base code?
A three-base sequence in DNA or RNA is known as a codon. The codes in the coding strand of DNA and in messenger RNA aren't, of course, identical, because in RNA the base uracil (U) is used instead of thymine (T).
Why do codons have 3 bases?
The more bases there are per codon the more information you can code for. There are only 22 different amino acids, in consequence, we need a minimum of 3 bases per codon.
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The graph below shows how solubility changes with temperature.
A graph with the horizontal axis showing temperature ranging from 0 to 10 in units of 10 and the vertical axis solubility in grams of salt per 100 grams of water. Several compounds are shown. All data are approximate. The substances and their coordinates are as follows: upper N a upper C l: 0, 38; 10, 38; 20, 38; 30, 38; 40, 39; 50, 39; 60, 39; 70, 40; 80, 40; 90, 40; 100, 40. Upper N a subscript 2 upper H upper A s upper O subscript 4: 0, 5; 10, 18; 20, 28; 30, 39; 40, 49; 60, 65; 80, 82. Upper B a (upper N upper O subscript 3) subscript 2: 0, 5; 10, 8; 30, 12; 40, 15; 50, 18; 60, 20; 80, 28; 100, 33. Upper N a subscript 2 upper S upper O subscript 4: 0, 5; 5, 8; 10, 10; 15, 15; 20, 20; 25, 20; 28, 35; 30, 40; 32, 49; 33, 50; 35, 50; 40, 48; 50, 47; 60, 46; 70, 45; 80, 43; 90, 32; 100, 40. Upper C 3 subscript 2 (upper S upper O subscript 4) subscript 3 dot 9 upper H subscript 2 upper O: 0, 18; 20, 10; 30, 8; 50, 5; 60, 3; 80, 1; 100, 0.
Which two solutions have similar solubilities at 40°C?
Na2SO4 and NaCl
Na2HAsO4 and NaCl
Na2HAsO4 and Na2SO4
Ba(NO3)2 and Ce2(SO4)3 • 9H2O
Answers
Depending on the solubility at the temperature, 600 mL of saturated solution in NaCl must be prepare. Na₂HAsO₄ and Na₂SO₄ is the correct option.
The maximum amount of a chemical that will dissolve in a given amount of solvent at a given temperature is referred to as its solubility. Varying compounds have very different solubilities, which is a characteristic of a particular solute-solvent pair. The amount of a solute that dissolves in a specific volume of liquid is known as its solubility.
In terms of solubility, solute volume divided by solvent volume o
Saturated, unsaturated, and extremely saturated solutions are all possible.
The solubility of solutes increases as the temperature rises.
Depending on the solubility at the temperature, 600 mL of saturated solution in NaCl must be prepared.
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Answer:
C
Explanation:
Na2HAsO4 and Na2SO4
ANSWER THESE 3 QUESTION AND I WILL GIVE OUT THE BRAINLIEST
1. what is a positive acceleration
2. what is a zero acceleration
3. what is a negative acceleration
Answers
Answer:
A positive acceleration means and increase
A negative acceleration is a decrease
a zero acceleration is a constant movement so its not increasing or decreasing just constant
Explanation:
What is a positive acceleration ?
\( \sf \blue{Answer}\)If the velocity of an object increases with time, its acceleration is positive.
\( \sf \pink{Question}\)What is a zero acceleration ?
\( \sf \blue{Answer}\)Zero acceleration is an acceleration, just with zero magnitude. Motion with constant velocity is just a special case of motion with uniform acceleration.
\( \sf \pink{Question}\)What is a negative acceleration ?
\( \sf \blue{Answer}\)A negative acceleration means you will subtract from the current value of the velocity, and a positive acceleration means you will add to the current value of the velocity. ... And if the acceleration points in the opposite direction of the velocity, the object will be slowing down.
if 10 moles of phosphorus and 13.0 moles of sulfur react to make p2s3 how many moles of diphosphorus trusulfide can be produced?
Answers
The number of moles of diphosphorus trusulfide can be produced if 10 moles of phosphorus and 13.0 moles of sulfur react to make P₂S₃ is 40 moles.
To calculate the number of moles of diphosphorus trusulfide can be produced, we must know the balanced chemical equation for the reaction of 10 moles of phosphorus and 13.0 moles of sulfur to form P₂S₃ is:
P4₄+ 3S₈ → 4P₂S₃
One mole of P₄ reacts with 3 moles of S₈ to form 4 moles of P₂S₃.
The molar ratio of P₄:S₈:P₂S₃ is 1:3:4. Using this ratio, we can calculate the number of moles of P₂S₃ produced by reacting 10 moles of phosphorus and 13.0 moles of sulfur.
P₄:S₈:P₂S₃
= 10:13:??
= (10÷1):(13÷3):(4÷1)
= 10:4.33:4
Since the ratio of P₄:S₈:P₂S₃ is 10:13:4, and 10 moles of phosphorus react, the limiting reactant is phosphorus. Therefore, the maximum amount of P₂S₃ that can be produced is given by the moles of P₄ that reacted. 4 moles of P₂S₃ are produced from 1 mole of P410 moles of P₄ are reacted.
Therefore, the maximum amount of P₂S₃ that can be produced is:
4 moles P₂S₃/ 1 mole P₄ × 10 moles P₄
= 40 moles P₂S₃
Hence, 40 moles of diphosphorus trisulfide can be produced.
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The ions formed when ch₃oh dissociates in water are?
Answers
The ions formed when ch₃oh dissociates in water are Hydrogen ions (H+) and hydroxide ions (OH-).
What ions are formed when ch₃oh dissociates in water?
In water, CH3OH, generally referred to as methanol, splits into hydrogen ions (H+) and hydroxide ions (OH-). The hydrogen and oxygen atoms in the CH3OH molecule interact with one another as a result of the solvent effect of water molecules, dissolving the molecule into its component ions. The solution is electrically conductive because these ions are free to move about and take part in chemical processes. Ionization, the process of turning a neutral substance into ions, is illustrated by the dissociation of CH3OH in water. The pH of the solution—a measurement of how acidic or basic the solution is—can be impacted by this ionisation. Biological and chemical processes may be significantly impacted by the dissociation of CH3OH in water.Hence the ions formed are Hydrogen ions (H+) and hydroxide ions (OH-).
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if the mass ratio of k to f in a compound is 2.06, how many grams of f are needed to react with 2.30 of k?
Answers
To determine the number of grams of element "f" needed to react with 2.30 grams of element "k", you can use the mass ratio provided in the problem. First, let's call the mass of "f" that is needed x. The mass ratio tells us that the mass of "f" is 2.06 times the mass of "k", so we can set up the following equation:
2.06 * x = 2.30
To solve for x, we can divide both sides of the equation by 2.06:
x = 2.30 / 2.06
This simplifies to:
x = 1.12 grams
Therefore, 1.12 grams of element "f" are needed to react with 2.30 grams of element "k".
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An unknown mass of silver is heated, and then placed into a calorimeter containing 250.0 grams of water at 6.50 °C. The silver and the water reach thermal equilibrium at 23.35 °C. What is the amount of HEAT lost by the the silver sample? (Note: Specific heat of water is 4.18 J/g·ºC).
Answers
q water = 17625.1
-17625.1 would be the total amount of heat lost by the silver
1.
Archaeologists have discovered the legendary Golden Igloo of the Pribiloff Islands, a structure consisting of a
halfspherical shell with an inner diameter of 1.25 m and an out diameter of 1.45 m. What is the value of this antiquity,
given that gold currently sells for $1,263/ounce and has a density of 19.3 g/cm3? (Note that 1 ounce = 31.1034768 g)
Answers
Answer:
The value of the Golden Igloo is $227.4 million.
Explanation:
First, we need to find the inner and the outer volume of the half-spherical shell:
\( V_{i} = \frac{1}{2}*\frac{4}{3}\pi r_{i}^{3} \)
\( V_{o} = \frac{1}{2}*\frac{4}{3}\pi r_{o}^{3} \)
The total volume is given by:
\( V_{T} = V_{o} - V_{i} \)
Where:
\( V_{i} \): is the inner volume
\(r_{i}\): is the inner radius = 1.25/2 = 0.625 m
\( V_{o} \): is the outer volume
\(r_{o}\): is the outer radius = 1.45/2 = 0.725 m
Then, the total volume of the Igloo is:
\( V_{T} = \frac{2}{3}\pi r_{o}^{3} - \frac{2}{3}\pi r_{i}^{3} = \frac{2}{3}\pi [(0.725 m)^{3} - (0.625 m)^{3}] = 0.29 m^{3} \)
Now, by using the density we can find the mass of the Igloo:
\( m = 19.3 \frac{g}{cm^{3}}*0.29 m^{3}*\frac{(100 cm)^{3}}{1 m^{3}} = 5.60 \cdot 10^{6} g \)
Finally, the value (V) of the antiquity is:
\( V = \frac{\$ 1263}{oz}*5.60 \cdot 10^{6} g*\frac{1 oz}{31.1034768 g} = \$ 227.4 \cdot 10^{6} \)
Therefore, the value of the Golden Igloo is $227.4 million.
I hope it helps you!
Which of the following is the correct chemical formula for Ca and F? CaF Ca2F CaF2
Answers
Answer:
CaF2
Explanation:
Calcium fluoride is a solid formed by the chemical combination of Calcium (Ca) and Fluorine (F). Two molecules of fluorine (F2) and one molecule of Calcium (Ca) are needed to form the Calcium Fluoride molecule.
An ionic bond is formed between the Calcium and Fluorine atoms i.e. electrons are transferred from calcium atoms to fluorine atoms. The calcium ion is a cation with formula; Ca2+ while fluorine is an anion with formula; F-. Hence, it takes two molecules of Fluorine ion (F-) to form a relatively stable and neutral molecule with 1 molecule of Calcium ion (Ca2+).
In certain species of fish, scale color can either be blue, yellow, or blue and yellow striped. If a blue fish and a blue/yellow striped fish mate, what color scales could their offspring have?
Answers
Answer:
Blue scale or blue/yellow stripe scale
Explanation:
Let us assume that the blue color is represented by B allele while the yellow color is represented by Y allele. The two alleles are equally dominant on one another, hence, BY would represent blue and yellow stripe gene.
Blue scale - BB
Yellow scale - YY
Blue/yellow striped scale - BY
Crossing BB and BY
BB x BY
BB BY BB BY
Hence, their offspring is either BB (blue scale) or BY (blue/yellow stripe scale).
natural gas contains small amounts of sulfur compounds. when burned, they produce the pollutant that further reacts with oxygen in the atmosphere to produce another harmful substance. consider the system below: what is the chemical equation that represents this process?
Answers
Natural gas contains small amounts of sulfur compounds, such as hydrogen sulfide (H2S), which are undesirable impurities. When natural gas is burned, these sulfur compounds are oxidized, producing sulfur dioxide (SO2) as a pollutant. Sulfur dioxide then further reacts with oxygen in the atmosphere to form another harmful substance, sulfur trioxide (SO3).
The chemical equations representing this process are as follows:
1. Combustion of hydrogen sulfide (H2S):
H2S + 3/2 O2 → SO2 + H2O
2. Oxidation of sulfur dioxide (SO2) to sulfur trioxide (SO3):
2 SO2 + O2 → 2 SO3
These reactions contribute to air pollution, and the formation of sulfur trioxide in the atmosphere can lead to the formation of acid rain when it reacts with water vapor. Therefore, it is essential to minimize the release of sulfur compounds during the combustion of natural gas and other fossil fuels to mitigate the negative environmental impacts.
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easy ones! giving brainly if correct. answering both questions would be nice
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I wish I am correct
Which option lists the layers of the rainforest in the correct order from top to bottom?
emergent layer, canopy, forest floor, shrub layer
emergent layer, canopy, understory, forest floor
forest floor, emergent layer, canopy, understory
forest floor, understory, canopy, emergent layer
Answers
Answer: B.
Explanation:
Trust me already took the quiz on it its B.
Answer:
Yes its B
Explanation:
what is the name of this organic compound?
Answers
The name of the organic compound is 2-methyl pentane. The given organic compound is a five-carbon system with a substitution at the C-2 carbon. The naming of an organic compound is done according to the rules given by IUPAC.
The given organic compound has 5 carbon in its main chain. So It has the root word Pent. Since, all the bonds are single bonds, the organic compound is saturated, hence it has the suffix -ane. Hence the unsubstituted straight chain is pentane.
Numbering is done from right to left, because when the numbering is from right to left, the substituted carbon gets C-2, when it is numbered from left to right, the substituted carbon gets C-4. So the numbering is from the right and the substituted carbon is C-2. The substituent is a single carbon system, a methyl substituent. So the organic compound is named 2-methyl pentane .
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A ____________ is a property, the expansion, redevelopment, or
reuse of which may be complicated by the presence or potential
presence of a hazardous substance, pollutant, or contaminant.
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A brownfield is a property, the expansion, redevelopment, or reuse of which may be complicated by the presence or potential presence of a hazardous substance, pollutant, or contaminant.
A “brownfield” generally refers to a parcel of land that was previously used for industrial purposes and which is contaminated by low concentrations of hazardous chemicals.
A brownfield development requires more work and investment upfront: existing structures may have to be demolished, materials must be removed, and developers may have to engage in extensive environmental cleanup to remove pollutants.
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A solution is prepared by adding 91.9 g of ethanol, ch3ch2oh, to 481.0 ml of water. the final volume of the solution is 597.5 ml. assuming the density of water is 1.0 g/ml and the density of ethanol is 0.789 g/ml, calculate the molality of the ethanol in the solution.
Answers
Answer:
17.51M
Explanation:
first we make out what we've been given .
Mass of ethanol= 91.9g
volume of water = 481.0ml
volume of solution= 597.5ml
density of water = 1.0g/ml
density of ethanol= 0.789g/ml.
firstly find the volume of ethanol since the total volume of the solution is 597.5ml and we've been given the volume of water which is 481.0ml , we subtract the volume of water from the volume of the solution , to find out the volume of ethanol .
volume e =597.5ml - 481.0ml
= 116.5ml
Then we find the molecular mass of ethanol , which is 45.04g/mol .
then we find the number of moles of ethanol .
n=mass /molar mass
=91.9g/ 45.04g/mol
=2.04mols .
Then convert the volume from milliliters to liters , by dividing by a 1000 .
v= 116.5/1000
=0.1165L
since we have our number of moles and volume , we can now find the molarity . which is
M=n/v
= 2.04mols /0.1165L
= 17.51M .