What elements in group 17 are solids liquids and gass?

The density of the fuel within a gas canister is 0.029 cm³ if the canister holds 1.45 L of gasoline and the gasoline has a density of 0.710 g/cm³.

A place's density describes how many things there are there, which could include people, animals, plants, or other objects. To calculate density, multiply this quantity by the area's dimensions. The population density of a nation is determined by dividing the total population by the area, measured in square kilometers and miles.

Volume of canister = 1.45 L.

Convert it to cm³.

The conversion formula is : 1 L = 1000 cm³

So;

1.45 L = 1.45 L × (1000 cm³)/1 L

= 1450 cm³

Mass of the fuel = volume × density

= 1450 cm³ × 0.710 g/ cm³

= 1029.5 g

Convert g to kg:

1029.5 g × (1 kg/ 1000 g)

= 1.0295 kg.

= 1.03 kg (approximately)

Mass of drop of gasoline = 22 mg

= 22 mg ×(1 g/ 1000 mg)

= 0.022 g

Volume = mass/ density

= 0.022 g/ (0.754 g/cm³)

= 0.029 cm³

To know more about density visit:

brainly.com/question/29775886

#SPJ1

Answer:

Overfishing

Explanation:

The aquatic biomes of the Philippines' are rich in coral reefs and other aquatic animals but they are under major threat due to pollution and overfishing.

Pollution is caused by industrial factories and coastal developments. Industrial factories fed all it waste in the aquatic biomes and coastal developments due to the increasing population of the Philippines causes mass pollution by the dumping of waste materials and sedimentation.

Overfishing exploits the fish species and also affects the food cycle in aquatic biomes.

As a student, we can spread awareness by conducting awareness campaigns and can take the help of news channels to let people know the consequences of aquatic biomes exploitation. We can also use social media which is popular nowadays to introduce facts about the causes and consequences of aquatic biomes exploitation.

Answer:

1.5 eq. of charge are present.

Explanation:

In therms of charge, 1 equivalent of charge is defined as the moles of a monovalent ion (That is of charge +1 or -1) necessaries to neutralize the charge of the ion that we are studying.

In PO₄³⁻ ion there are 3 equivalents of charge per mole of PO₄³⁻. In 0.5 moles of this ion there are:

0.5 moles PO₄³⁻ * (3Eq. / 1 mol PO₄³⁻) =

Answer:

Option B, Dynamic force

Explanation:

Cloudy water is an abiotic factor as it cannot support life and it is produced due to the impact of Dynamic Forces.

Cloudy water consists of air bubbles and is harmless.

Biotic things have life and posses characteristics of living beings such as eating, walking, reproducing etc.

Answer:

B; Photosynthesis

Explanation:

Here, we want to get the process that helps produce glucose and oxygen

The process here is called Photosynthesis

It is the process by which green plants use chloropyhll iin them, catalyzed by sunlight to produce energy in form of glucose

Stars form in large, dense regions of gas and dust known as molecular clouds. These clouds are located primarily in the spiral arms of galaxies, where they are exposed to intense radiation from nearby stars. As the gas and dust in these clouds are subjected to this radiation, they begin to collapse under their own gravity. As the collapse continues, the cloud becomes denser and denser, and eventually a protostar forms at its center. Over time, this protostar continues to contract and heat up, eventually reaching the point where nuclear fusion can begin in its core. At this point, the protostar becomes a fully-fledged star, and the process of star formation is complete.

TL;DR: Within the clouds of dust and scattered throughout most galaxies.

In scientific notation (m/s), the neutrino's speed is given as: 2.99338 109 m/s.

Scientific notation is a method of writing or displaying real numbers in the form of a decimal number ranging from one and 10 followed by an integer power of ten.

A decimal number in scientific notation is one that is followed immediately by E and an integer.

Experiments at the ICARUS particle accelerator discovered neutrinos traveling at nearly light speed, at 299338000 m/s.

Thus, as a result, the neutrino's speed in scientific notation (m/s) is given as: 2.99338 109 m/s.

For more details regarding scientific notation, visit:

https://brainly.com/question/18073768

#SPJ1

Answer:

Most especially, solutions lose color when;

\({}\)

Answer:

Assign priorities in the following set of substituents according to Cahn-Ingold-Prelog rules.

-OCH3 -Br -Cl -CH2OH

Explanation:

To give priorities for the substituents that are attached to chiral carbon and  to assign either R or S-configuration the following rules were proposed:

1. The atom with the highest atomic number is given first priority.

2. If the Groups attached to chiral carbon are having the same first atom, then check for the atomic number of the second atom.

Among the given groups,

-Br has the highest atomic number, so it is given first priority.

Then, -Cl.

Then, -OCH3

and the last one is -CH2OH.

Hence, the order is :

BCAD.

Answer:

well it depends of the distance, but u get your frequency and u times it by a round number if im correct

Explanation:

Answer: 0.085 (Ms)⁻¹

Explanation: Half life = 12 s

is the initial concentration = 0.98 M

Half life expression for second order kinetic is:

k = 0.085 (Ms)⁻¹

The rate constant for this reaction is 0.085 (Ms)⁻¹ .

Answer:

Science is:

objective

based on fact

must be ethical

Explanation:

Science is considered to be objective because it is based on empirical evidence and systematic observation, and it strives to eliminate personal bias and opinions from the scientific process. Science is based on fact, as it relies on repeatable and verifiable experiments to test hypotheses and theories. And, it is important for science to be ethical because the scientific community has a responsibility to ensure that research is conducted in an ethical and responsible manner, and that the results are reported accurately and honestly.

Explanation:

its asking how will you explain to the people on what made the water rust? what have you learned about how water rust in your class? just explain it what you already know!!

The molarity of the solution, which contains 58.5 g of NaCl dissolved in 0.25 L of solution, is approximately 4.004 M.

To calculate the molarity of a solution, we need to determine the number of moles of solute (NaCl) and then divide it by the volume of the solution in liters.

Given:

Mass of NaCl = 58.5 g

Volume of solution = 0.25 L

Step 1: Calculate the number of moles of NaCl.

To find the number of moles, we need to divide the mass of NaCl by its molar mass. The molar mass of NaCl is the sum of the atomic masses of sodium (Na) and chlorine (Cl).

Molar mass of NaCl = 22.99 g/mol (Na) + 35.45 g/mol (Cl) = 58.44 g/mol

Moles of NaCl = Mass of NaCl / Molar mass of NaCl

= 58.5 g / 58.44 g/mol

≈ 1.001 mol

Step 2: Calculate the molarity.

Molarity (M) is defined as moles of solute per liter of solution.

Molarity = Moles of solute / Volume of solution

= 1.001 mol / 0.25 L

≈ 4.004 M

Therefore, the molarity of the solution, which contains 58.5 g of NaCl dissolved in 0.25 L of solution, is approximately 4.004 M.

For more such question on molarity visit:

https://brainly.com/question/30404105

#SPJ8

We have that wavelengths to transitions in the hydrogen atom.

\(nf=2,ni=1 \rightarrow 121.5nm\\\\ni=1,nf=3 \rightarrow 102.6nm\\\\\ni=1,nf=4 \rightarrow 97.2nm\)

From the question we are told that

121.5 nm,102.6 nm, and 97.23 nm

Generally the equation for wavelength  is mathematically given as

\(\frac{1}{\lambda}=R_H*(\frac{1}{nf^2}-\frac{1}{nf^2})\\\\\frac{1}{\lambda}=1.097*10^7*\frac{1}{nf^2}-\frac{1}{ni^2}\)

Therefore

For nf=2,ni=1

\(\frac{1}{\lambda}=1.097*10^7*\frac{1}{2^2}-\frac{1}{1^2}\\\\\frac{1}{\lambda}=121.5nm\)

For ni=1,nf=3

\(\frac{1}{\lambda}=1.097*10^7*\frac{3}{1^2}-\frac{1}{1^2}\\\\\frac{1}{\lambda}=102.6nm\)

For ni=1,nf=4

\(\frac{1}{\lambda}=1.097*10^7*\frac{1}{4^2}-\frac{1}{1^2}\\\\\frac{1}{\lambda}=97.2nm\)

Therefore

The Correct slots are

\(nf=2,ni=1 \rightarrow 121.5nm\\\\ ni=1 ,nf = 3  \rightarrow 102.6nm\\\\\ni=1,nf=4   \rightarrow  97.2 nm\)

For more information on this visit

https://brainly.com/question/13025901?referrer=searchResults

Answer:

P₂ ≅ 100 atm (1 sig. fig. based on the given value of P₁ = 90 atm)

Explanation:

Given:

P₁ = 90 atm                    P₂ = ?

V₁ = 18 Liters(L)              L₂ = 12 Liters(L)      

=> decrease volume => increase pressure

=> volume ratio that will increase 90 atm is (18L/12L)                                                                  

T₁ = 272 Kelvin(K)          T₂ = 274 Kelvin(K)

=>  increase temperature => increase pressure

=> temperature ratio that will increase 90 atm is (274K/272K)

n₁ = moles = constant    n₂ = n₁ = constant

P₂ = 90 atm x (18L/12L) x (274K/272K) = 135.9926471 atm (calculator)

By rule of sig. figs., the final answer should be rounded to an accuracy equal to the 'measured' data value having the least number of sig. figs. This means P₂ ≅ 100 atm based on the given value of P₁ = 90 atm.

Answer:the first column has one valance electron the second has 2 and so on.

The only exception is helium that has 2.

Explanation:

Answer:

2/ Protons and neutrons are found in the nucleus.

Explanation:

Answer:

1. NaCl

2. NH4F

3. MgO

4.LiCl

5. KI

6. CaO

Explanation:

In that order

Answer:

information is missing

Explanation:

chemical equation is needed

The properties of hard and soft materials refer to their physical characteristics and behaviors.

These properties are related to factors such as the arrangement of molecules, bonding strength, and response to external forces. Here, we will discuss the general properties of hard and soft materials.

Hard materials:

Rigidity: Hard materials exhibit high stiffness and resist deformation under applied forces. They tend to maintain their shape and structure.

High strength: Hard materials have strong intermolecular or intramolecular forces, allowing them to withstand high stress and pressure without breaking or deforming.

High melting and boiling points: Hard materials often have high melting and boiling points due to the strong bonds between their atoms or molecules.

Brittle: Hard materials are often brittle, meaning they have low tolerance to tensile or bending forces and are prone to fracturing or shattering instead of deforming.

Low compressibility: Hard materials have low compressibility, meaning they do not easily compress or change volume under pressure.

Soft materials:

Flexibility: Soft materials are pliable and easily deformable under applied forces. They can be bent, stretched, or compressed without breaking.

Low strength: Soft materials have weak intermolecular or intramolecular forces, making them more susceptible to deformation or damage under stress.

Low melting and boiling points: Soft materials generally have lower melting and boiling points compared to hard materials.

Ductile: Soft materials are often ductile, meaning they can be drawn into thin wires or stretched into thin sheets without fracturing.

High compressibility: Soft materials can be easily compressed or change volume under pressure due to their loosely packed molecular structures.

It's important to note that these properties are generalizations, and there can be variations within each category. Some materials may exhibit properties that fall between hard and soft, or they may have unique combinations of properties. Materials' properties play a crucial role in various applications, as they determine their suitability for specific uses such as construction, manufacturing, and design.

Know more about soft materials here:

https://brainly.in/question/9463325

#SPJ11

There are 90.0 g of F are present in 185 g of CaF₂. In chemistry, a mole, usually spelled mol, is a common scientific measurement unit for significant amounts of extremely small objects like atoms, molecules, or other predetermined particles.

According to question, mass of CaF₂ = 185 g

It is required to calculate the moles of CaF₂

Moles of CaF₂ = 185 g / 78.074 g.mol-1

= 2.369 mole of CaF₂

Now find the moles of F from the moles of CaF₂

1 mole of CaF₂ = 2 moles of F

2.369 mole of CaF₂ = ?

= 4.74 moles of F

Now change the mole to gram of F

Mass of F = 4.74 moles of F × 18.998 g/mol

= 90.03 g of F

Thus, 90.0 g of F are in 185 g of CaF₂.

Learn more about mole, here:

https://brainly.com/question/30892840

#SPJ1

Answer:

2.475 mol of O2  formed.

Explanation:

Given 1.65 moles of KClO3 as the target amount in the reactant, used the coefficient of the balanced chemical reaction involved to determine the number of moles of O2 molecules formed.

x mole of  O2   = 1.65 mol  KClO3 x [(3 mol O2)/ (2 mol KClO3)] = 2.475 mol of O2

x mole of  O2 formed  = 2.475 mol of O2

Answer:

1 month

Explanation:

Taking into account the definition of molarity and molar mass, the amount of mass of EDTA needed to make 329.5 mL of a 0.03 M EDTA solution is 3.69699 grams.

Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:

\(molarity=\frac{number of moles}{volume}\)

Molarity is expressed in units .

Definition of molar mass

The molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.

In this case, you need to make 329.5 mL of a 0.03 M EDTA solution. Then, you know:

Replacing in the definition of molarity:

\(0.03 M=\frac{number of moles}{0.3295 L}\)

Solving:

0.03 M× 0.3295 L= number of moles

number of moles= 0.009885 moles

Now, knowing that the molar mass of EDTA is 374\(\frac{grams}{mole}\), the mass of EDTA needed is calculated by:

0.009885 moles×374\(\frac{grams}{mole}\)= 3.69699 grams

Finally, the amount of mass of EDTA needed to make 329.5 mL of a 0.03 M EDTA solution is 3.69699 grams.

Learn more about

molarity:

brainly.com/question/9324116

brainly.com/question/10608366

brainly.com/question/7429224

molar mass:

brainly.com/question/5216907

brainly.com/question/11209783

brainly.com/question/7132033

brainly.com/question/17249726

Answer:

2.0 moles

Explanation:

I hope this helps you a little bit at least the answer is 2.0 but if you want to review more stuff check the photos

Answer:

Prophase 1

Explanation:

Answer:

The correct answer will be prophase I

Explanation:

During this stage, the genetic code is together and hasn't split yet therefore, the answer is prophase I hopefully this helps!

How many grams of sodium chloride are there in 2.34 moles of sodium chloride (NaCl)?

To find the mass that we have in 2.34 moles of NaCl, we need the molar mass of NaCl. To get the molar mass of NaCl we have to look for the atomic mass of Na and Cl in the periodic table:

Na: 22.99 amu Cl: 35.45 amu

Using those values we can calculate the molar mass of NaCl:

molar mass of NaCl = 22.99 + 35.45

molar mass of NaCl = 58.44 g/mol

Now that we know the mass of 1 mol of NaCl, we can find the mass of NaCl that there are in 2.34 moles of it.

mass of NaCl = number of moles of NaCl * molar mass of NaCl

mass of NaCl = 2.34 moles * 58.44 g/mol

mass of NaCl = 136.75 g

Answer: There are 137 g of NaCl in 2.34 moles of it.

Answer:

Explanation:

Do a quick conversion: 1 grams H3PO4 = 0.010204583427424 mole using the molecular. How many grams H3PO4 in 1 mol?  You can view more details on each measurement unit: molecular weight of H3PO4 or mol This. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula.