Compared to water, a carbonated soft drink with a pH of 3 is 10,000 times more acidic.
What is meant by acidic in nature?
Acids include different types of acids and vinegar; they differ from bases in that they have a lower pH. The Latin term acidus, which means "sour or harsh," is where the word acid, which originally meant "of the taste of vinegar," originates from.
Bases are compounds that can accept a proton, while acids are substances that can donate a proton.
The answer is 10,000 because every pH unit change makes something 10 times more acidic.
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Which information best supports the idea that the universe began with rapid expansion?
O Measurements of cosmic microwave background radiation
O Measurements of rates of decay
O Calculation of the temperature and brightness of stars
Calculations of the distance from the sun to each planet
What are the features that allow you to identify an ionic compound based on its chemical formula
Answer:
first identify the cation and write down its symbol and charge. Then, identify the anion and write down its symbol and charge.
Explanation:
For the reactions listed below, decide whether the reaction would increase, decrease, or stay the same.
The rate of the reaction is the speed at which the reactants are used to produce the products. An increase in temperature and concentration of the reactant increases the rate of reaction.
What are the factors affecting the rate of reaction?The rate of the reaction is the speed at which the products are used to produce products. The rate increases when the concentration of the reactants in a reaction is increased. Also, the smaller grounded pieces of reactants increase the reaction rate as the surface area gets increases.
The rise in temperature and the addition of the catalyst also increases the rate of reaction as temperature and the catalysts increase the chemical reaction by increasing the speed.
When an inhibitor is added to a reaction then the rate of the reaction decreases as they inhibit the formation of the products and block the reaction pathways.
Therefore, the inhibitors decrease the rate of the reaction.
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Calcium + magnesium sulfide
Answer:
Calcium and magnesium sulphide react to form calcium sulphide and magnesium metal.
Explanation:
Ca + MgS → CaS + Mg
The reaction between calcium and magnesium sulfide produces calcium sulfide and magnesium metal. The balanced equation can be given as Ca + MgS → CaS + Mg.
What is balanced chemical equation?
An equation for just a chemical reaction is said to be balanced if both the reactants as well as the products have the same number of atoms and total charge for each component of the reaction. In other words, both side of the reaction have an equal balance of mass and charge.
Conservation of charge as well as mass, equation and reaction balance, etc. The components and outcomes of a chemical reaction are listed in an imbalanced chemical equation, but the amounts necessary to meet the conservation of mass are not specified. The reaction between calcium and magnesium sulfide produces calcium sulfide and magnesium metal. The balanced equation can be given as Ca + MgS → CaS + Mg.
Therefore, the balanced equation can be given as Ca + MgS → CaS + Mg.
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10. How many moles of glucose are in 0.5L of a 0.138M solution of glucose in
water?
Answer:
0.069 moles of glucose
Explanation:
(0.138 mol/L)(0.5 L) = 0.069 moles of glucose
Answer:
\(\boxed {\boxed {\sf 0.069 \ mol \ C_6H_12O_6}}\)
Explanation:
Molarity is the moles per liter of a solution. It is found by dividing the moles of solute (glucose) by the liters of solution (water).
\(M= \frac {moles}{liters}\)
We know the molarity is 0.138 M. 1 M is equal to 1 mole per liter, so we can rewrite the molarity as 0.138 moles per liter.
There are 0.5 liters of solution.
We are solving for the moles, so we can use x.
\(0.138 \ mol/L= \frac {x }{0.5 \ L}\)
We must isolate the variable (x) to solve for the moles. It is being divided by 0.5 liters. The inverse operation of division is multiplication. Multiply both sides of the equation by 0.5 L.
\(0.5 \ L *0.138 \ mol/L= \frac {x }{0.5 \ L}* 0.5 \ L\)
The liters on both sides cancel.
\(0.5 *0.138 \ mol= {x }\)
\(0.069 \ mol =x\)
\(0.069 \ mol \ C_6H_12O_6\)
Ther are 0.069 moles of glucose in a 0.138 M solution with 0.5 liters of water.
What do greenhouse gases (CO2) do to the atmosphere?
Answer:
they causes climate change by trapping heat and also they contribute to respiratory diseases from smog and air pollution
Answer:
They add C02 to our atmosphere which can give plants and soils more CO2. It can also make our earths temperature change a ton!
Explanation:
Greenhouse gases produce an increase in the average surface temperature of the earth over time.
Question 11
Which formula represents a hydrocarbon?
C₂H6
C₂H5OH
C₂H5Cl
C₂H6O
Answer:
C₂H6
Explanation:
Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). Option A
A hydrocarbon is a compound that consists of only carbon and hydrogen atoms. It is important to identify the formula that represents a hydrocarbon among the given options:
A) C₂H6: This formula represents ethane, which is a hydrocarbon. Ethane consists of two carbon atoms bonded together with single bonds and six hydrogen atoms.
B) C₂H5OH: This formula represents ethanol, which is not a hydrocarbon. Ethanol contains a hydroxyl group (-OH), indicating the presence of oxygen in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.
C) C₂H5Cl: This formula represents ethyl chloride, which is not a hydrocarbon. Ethyl chloride contains a chlorine atom (Cl) in addition to carbon and hydrogen atoms. It is a haloalkane, not a hydrocarbon.
D) C₂H6O: This formula represents ethanol, which, as mentioned before, is not a hydrocarbon. Ethanol contains an oxygen atom (O) in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.
Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). It consists only of carbon and hydrogen atoms, making it a suitable representation of a hydrocarbon.
In summary, the formula C₂H6 (option A) represents a hydrocarbon, while the other options contain additional elements (oxygen or chlorine) that make them non-hydrocarbon compounds. Option A
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The speed of light in a vacuum is 2.998×10^8 m/s .
What is its speed in miles per minute (mi/min)?
Answer:299,800,000
Explain: The speed of light is 3.00x108m/s and in mph is 6.708 x 108.
How can these predictable winds, which scientists call "prevailing winds", help us predict whether a place will get precipitation?
Answer:
The direction of prevailing winds determines which type of air mass generally moves over an area. For illustration, a west wind might bring warm wettish air from over an ocean. An east wind might bring cold dry air from over a mountain range. Which wind prevails has a big effect on the climate
Prevailing winds are the result of atmospheric rotation cells. They impact the climate of a region.
Rising and sinking air can impact the rush of a region.
Atmospheric rotation cells produce the general climate of a region.
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Help me to answer the question please
Answer:
The density is decrease so it B!
Which statement best describes how those advancements are detrimental to the earth?
The detriment of these advancements to the Earth is that: the growing population is taxing Earth's resources which could lead to the extinction of many species.
The effect of science and technology.Various scientific discoveries and technological advances around the world have led to an exponential increase in Earth's population with no end of the growth in sight.
In conclusion, we can infer and logically deduce that the statement which best describes how these advancements are detrimental to the Earth is that the growing population is taxing Earth's resources and this may likely lead to the extinction of many species of organisms.
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Mushrooms are ___________ that use spores for ______________?
A chemical reaction is carried out in a closed container. the energy absorbed by the chemical reaction is 100 kj. What is the energy liberated from the air or the walls of the container?
A. 100 kJ
B. 50 kJ
C. 25 kJ
D. 75kJ
Answer:
Option A
Explanation:
The total heat absorbed during the chemical reaction is the total heat released by the surrounding.
Net change of heat is equal to zero
Hence, the energy liberated from the air or the walls of the containers would be equal to the energy absorbed by the chemical reactions is equal to 100 Kj
Thus, option A is correct
Given subsets A and B of Ω, identify all sets in σ(A,B).
The sets in σ(A,B) are the smallest σ-algebra that contains both A and B.
In probability theory and measure theory, a σ-algebra is a collection of subsets of a given set Ω that satisfies certain properties. The notation σ(A,B) represents the smallest σ-algebra that contains both subsets A and B. This means that σ(A,B) consists of all possible subsets that can be formed by taking the union, intersection, and complement of sets in A and B.
To understand this concept better, let's consider an example. Suppose we have a set Ω = {1, 2, 3, 4} and two subsets A = {1, 2} and B = {2, 3}. The σ-algebra σ(A,B) would include the empty set, the set Ω itself, as well as other subsets such as {1}, {2}, {3}, {1, 2}, {2, 3}, and {1, 2, 3}. It would also include their complements, for example, the complement of {1} would be {2, 3, 4}.
The σ-algebra σ(A,B) is important in probability theory as it allows us to define probability measures and study various properties of events and random variables. By identifying all the sets in σ(A,B), we can determine the range of events that can be analyzed within this framework.
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What is the name of the compound with the chemical formula Br2F8?
The name of the compound with the chemical formula Br2F8 is dibromo octafluorine.
How chemical compounds are named?The chemical formula of a compound shows the type and proportion of each element that makes up the chemical compound.
According to this question, a compound with chemical formula Br2F8 is given. The compound consists of the following:
2 atoms of Bromine8 atoms of fluorineTherefore, the name of the compound with the chemical formula Br2F8 is dibromo octafluorine.
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Mixtures:
(A) Have specific compositions
(B) do not have specific compositions
(C) are made from liquids
(D) are made from one substance
The true statement about mixtures is that they do not have specific compositions (option B).
What is a mixture?Mixture is a substance made up of two or more chemical components that are not chemically linked.
This further means that the constituents of a mixture maintain or keep their individual chemical identities because there is no breaking of bonds.
As opposed to mixtures, compounds are made up of constituents that are chemically bonded to one another, hence, possess a definite composition.
Examples of mixtures are as follows:
Sugar and waterSalt and waterAir (mixture of gases)Salt and sugarSand and waterOil and waterTherefore, the true statement about mixtures is that they do not have specific compositions.
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4th grade. Which of the is a rolling model?
Does anyone know how to help?
Answer:
we need a picture in order to help you. if you add a picture or text of what you want an answer to I can help!
draw the condensation product that is expected when each of the following esters is treated with sodium ethoxide followed by acid workup:
The condensation product, therefore, is an alkene molecule. The specific structure of the alkene will depend on the reactants and can be determined by drawing out the reaction steps as shown below.
To draw the condensation product that is expected when each of the following esters is treated with sodium ethoxide followed by acid workup, the first step is to take the reactants and convert them into sodium alkoxide and the corresponding alcohol. This is done by reacting the ester with sodium ethoxide, an alkoxide base, which yields the alkoxide and the ester in an equilibrium reaction.
Next, the reaction mixture is treated with an acid which will protonate the alkoxide, forming an alcohol and sodium salt in a proton transfer reaction. Finally, a dehydration reaction will occur, removing a molecule of water and forming an alkene product. The overall reaction can be summarized as an ester + sodium ethoxide + acid → condensation product.
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3. describe natural sources of radiation. infer some of the dangers that radiation can impose.
Answer:
All of us are exposed to radiation every day, from natural sources such as minerals in the ground, and man-made sources such as medical x-rays. According to the National Council on Radiation Protection and Measurements (NCRP), the average annual radiation dose per person in the U.S. is 6.2 millisieverts (620 millirem).
Explanation:
According to solubility rules, which of the following compounds is soluble in water?
A. Na Coz
B. BaSO4
O C. Ca(NO3)2
D. K3PO4
Answer:
Na2CO3
Explanation:
Na2CO3 is a compound soluble in water. So the correct option is A.
What are solubility rules?
The common ionic solids' solubility laws are as follows. When two rules seem to conflict with one another, the prior rule is used.
Group I element salts (Li+, Na+, K+, Cs+, and Rb+) are soluble. The few exceptions to this rule are rare. Ammonium ion (NH4+) salts are also soluble in water.Nitrate ion (NO3-) salts are often soluble.In general, salts containing Cl, Br, or I are soluble. Ag+, Pb2+, and (Hg2)2+ halide salts are significant exceptions to this norm. PbBr2, Hg2Cl2, and AgCl are hence insoluble.Silver salts are often insoluble. Most silver salts are insoluble, with the exception of AgNO3 and Ag(C2H3O2).Sulfate salts are often soluble. This rule has some notable exceptions, such as CaSO4, BaSO4, PbSO4, Ag2SO4, and SrSO4.The majority of hydroxide salts are hardly soluble. Group I element hydrate salts are soluble. Group II elements (Ca, Sr, and Ba) have soluble hydrate salts. Transition metal and Al3+ hydrate salts are insoluble. Fe(OH), Al(OH), and Co(OH)2 are so insoluble.The majority of transition metal sulfides, such as CdS, FeS, ZnS, and Ag2S, are very insoluble. Sulfides of lead, antimony, bismuth, and arsenic are also insoluble.Many times, carbonates are insoluble. Group II carbonates, including CaCO3, SrCO3, and BaCO3, as well as FeCO3 and PbCO3, are insoluble.Most of the time, chromates are insoluble. PbCrO4 and BaCrO4 are examples.Many phosphates, like Ca3(PO4)2 and Ag3PO4, are insoluble.Many fluorides, including BaF2, MgF2, and PbF2, are insoluble.
Therefore, the correct option is A
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2Al +6HCl → 2AlCl3 + 3H2 then solve the problem below. Find the number of moles of Al used to produce 2.5 moles of H2
Answer:
2.5 moles of H2 will be produced by \(\frac{5}{3}\) moles of Al
Explanation:
The given equation is a balanced equation
2Al +6HCl → 2AlCl3 + 3H2
As per this reaction, 2 moles of Al are used to produce 3 moles of H2
1 mole of H2 will be produced by \(\frac{2}{3}\) moles of Al
2.5 moles of H2 will be produced by \(\frac{2}{3} * 2.5 = \frac{5}{3}\) moles of Al
NO FILES OR LINKS PLEASE HELPPPP IVE ASKED THIS 3 TIMES AND ALL I GET IS SCAM FILES ILL GIVE YOU BRAINLIEST PLEASE
What is the skeleton equation for
CuSO4 + 2NaOH → Cu(OH)2 + Na2SO Copper sulfate + Sodium hydroxide --> copper hydroxide + sodium sulfate
Answer:
*Inserting real answer*
Explanation:
I think CuSO4 + 2NaOH → Cu(OH)2 + Na2SO4 is the skeleton equation.
If I am wrong I am so sorry!!!
Have a nice day! :)
Also sorry for all the fake answers you have been getting that happened to me too TnT
A gas in a container has a pressure of 0.77 atm, volume of 65,5 L and a temperature of 235 K. If the gas
is helium, what mass of helium is in the container?
A) 2.61 g
B) 10.5 g
C) 0.625 g
D) 0.859 g
Answer:
B) 10.5
Explanation:
PV= NRT -> N=PV/RT
N= mols . P= pressure . V= volume in Liters T= temp in Kelvin (Celsius degree = 273.15) . R= Gas constant (.0821 for atm)
N=(.77 x 65.5)/(.0821x235) = 2.614 mols of Helium
Mols x Molecular weight = weight in grams
2.614x4.003(Molecular weight ot He) = 10.46 round to 10.5
Help, Kinda struggling here
The water cycle will be discussed here.
What is Water cycle?
This is defined as the continuous manner in which water is moved within the earth and the atmosphere.'
The water cycle comprises of steps such as:
EvaporationCondensationPrecipitationHumans however disrupt water cycle through the damming of rivers and deforestation.
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Hydrogen chloride gas (hcl) diffuses 1.8 times faster than an unknown gas. determine the molar mass of the unknown gas.
The molar mass of the unknown gas is approximately 11.25 g/mol.
To determine the molar mass of the unknown gas, we can use Graham's Law of Diffusion.
Graham's law states that the rate of diffusion of a gas is inversely proportional to the square root of its molar mass In other words:
Rate of diffusion of gas A / Rate of diffusion of gas B = sqrt(Molar mass of gas B / Molar mass of gas A)
Using the given information, we can set up an equation:
1.8 (rate of diffusion of unknown gas) / 1 (rate of diffusion of HCl) = sqrt(Molar mass of HCl / Molar mass of unknown gas)
Squaring both sides of the equation, we get:
3.24 = Molar mass of HCl / Molar mass of unknown gas
Multiplying both sides by the molar mass of the unknown gas, we get:
Molar mass of unknown gas = Molar mass of HCl / 3.24
The molar mass of HCl is 36.46 g/mol. Plugging this in, we get:
Molar mass of unknown gas = 36.46 g/mol / 3.24
Molar mass of unknown gas = 11.25 g/mol (rounded to two decimal places)
Therefore, the molar mass of the unknown gas is approximately 11.25 g/mol.
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Test anxiety symptoms can include
a. Shaky hands
b. Sweating
C. Headaches
d. All of these
Please select the best answer from the choices provided
O A
B
С
Answer:
D.) All of the above
Explanation:
Anxiety can cause sweating, chaky hands, headaches etc
Arrange the measurements from longest length to shortest length.
Longest length
Shortest length
Answer Bank
0.01 km
1 x 10^11 nm
50 in
1000 yards
Measurement is the number or quantity that shows the size of the object. The measurements from longest to shortest are yards, km, inch, and nm.
What are units of length?Length is measured by various scales that include the distance and the range that can be stated in a unit. The unit yard is the longest and is followed by kilometers, inches, and the nanometer.
Therefore, the order is yards, km, inch, and nm.
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How many moles are in a 4.5g of Sulfur?
Answer:
~0.14
Explanation:
There are roughly ~0.14 moles in 4.5g of Sulfur. 1 mol = 32.06 g of Sulfur, so we just find the ratio and then multiply.
Answer:
\(\boxed {\boxed {\sf About \ 0.14 \ mol \ S }}\)
Explanation:
To convert from grams to moles we must use the molar mass. This can be found on the Periodic Table.
Sulfur (S); 32.07 g/molWe can use this number as a ratio or fraction.
\(\frac{ 32.07 \ g \ S }{1 \ mol \ S }\)
Multiply by the given number of grams: 4.5
\(4.5 \ g \ S *\frac{ 32.07 \ g \ S }{1 \ mol \ S }\)
Flip the fraction so the grams of sulfur cancel.
\(4.5 \ g \ S *\frac{1 \ mol \ S }{32.07 \ g \ S}\)
\(4.5 *\frac{1 \ mol \ S }{32.07 }\)
\(\frac{4.5 \ mol \ S }{32.07 }\)
\(0.140318054 \ mol \ S\)
The original measurement of grams had 2 significant figures, so our answer must have the same. For the number we calculated, that is the hundredth place.
The 0 in the thousandth place tells us to leave the 4.
\(0.14 \ mol \ S\)
There is about 0.14 moles of sulfur in 4.5 grams.
How do you find the frequency of a recorder?
Answer:
Modern recorders are most commonly pitched at A=440 Hz, but among serious amateurs and professionals, other pitch standards are often found. For the performance of baroque music, A=415 Hz is the de facto standard, while pre-Baroque music is often performed at A=440 Hz or A=466 Hz.
Explanation:
POINTS AND BRAINLIEST! find the number of particles in 5.1 mol of oxygen gas
Answer:
1.3554817276×10^-22
Explanation:
5.1times16/6.02times10^23