How many energy levels does this atom have

Answer: Hello i am confused are you asking a question?

Explanation:

Answer:

mass of CO₂ produced = 5.06 g of CO₂

Explanation:

Equation of the reaction: 2CH₃CH₃ + 5O₂ ---> 4CO₂ + 6H₂O

From the equation of the reaction, 2 moles of gaseous ethane reacts with 5 moles of oxygen gas to produce 6 moles of water.

molar mass of ethane = 30 g/mol

molar mass of oxygen gas = 32 g/mol

number of moles of ethane present in 1.8 g = 1.8/30 = 0.06 moles

number of moles of oxygen gas present in 4.6 g = 4.6/32 = 0.14375 moles

mole ratio of oxygen gas to ethane  = 2.4 : 1

Therefore, oxygen is the limiting reactant

0.14375 moles of oxygen will react with 0.06 moles of ethane to produce 4/5 * 0.14375 moles of CO₂ = 0.115 moles of CO₂

molar mass of CO₂ = 44 g/mol

mass of CO₂ produced = 0.1725 * 44

mass of CO₂ produced = 5.06 g of CO₂

Answer:

stochiometry works with measuring quantitative relationships and used to determine the amount of products and reactants that are produced or needed in a reaction

Answer:

Stoichiometry is the calculation of reactants and products in chemical reactions in chemistry. Stoichiometry is founded on the law of conservation of mass where the total mass of the reactants equals.

Answer:

Veja, por exemplo, que os elementos mais eletronegativos são os que estão no canto superior direito da tabela, isto é, o flúor (4,0) e o oxigênio (3,5), e os menos eletronegativos são os que estão no canto inferior esquerdo, que são o frâncio (0,8) e o césio (0,8).

Explanation:

Answer:

a. triple bond

b.diatomic atom

c. covalent bond

d. non polar covalent bond

e. covalent bond

f. sigma bonds

Answer:

The answer is 2 all you do is divide the 6.02 and 3.01 and you get 2

Answer:

0.0326 moles

explanation

Answer:

0.234 mol

Explanation:

m(CaCO3) = 23.4g

n(CaCO3) = ?

M(CaCO3) = 100.09 g/mol

n = m/M

n(CaCO3) = 23.4 / 100.09

                 = 0.234 mol (3 s.f.)

lima ribu juta miliar triliun ......

Answer:

Explanation:

The percentage composition of iron (Fe) in Fe2(Cr207)3 can be calculated by finding the molar mass of Fe and the compound

Answer:

A true

Explanation:

Bald eagles have white heads distinguishing them from the rest of their body(which is dark brown

Answer:

I would say A but not sure

Explanation:

Answer:

88%.

Explanation:

The percentage yield of lead sulfate in this experiment is 88% if 2.53 is divided by 2.85 and multiply by 100. The percentage yield can be calculated when the experimental yield is divided by theoretical yield and then multiply by 100. The percentage yield tells us about the actual yield that is gained in the end of experiment which is lower than theoretical yield.

Answer:

I think its correct

The question is complete, the complete question is;

16.1g of bromine are mixed with 8.42g of chlorite to give an actual yield of 21.1g of bromine monochloride.

Answer:

91 %

Explanation:

Br2 + Cl2 ------>2BrCl

Number of moles of Chlorine = 8.42/71 = 0.119 moles

If 1 mole of Cl2 yields 2 moles of BrCl

0.119 moles of Cl2 will yield 0.119 moles * 2/1 = 0.238 moles of BrCl

Number of moles of Br2 reacted = 16.1/160 = 0.1 moles

If 1 mole of Br2 yielded 2 moles of BrCl

0.1 moles of Br2 yields 0.1 * 2/1 = 0.2 moles of BrCl

Bromine is the limiting reactant.

Mass of BrCl produced = 0.2 moles * 115.357 g/mol = 23.07 g

Theoretical yield = 23.07 g

Actual yield = 21.1 g

Percentage yield = Actual yield/Theoretical yield * 100

= 21.1/23.07 * 100 = 91 %

Answer:

I think D. sorry if I'm wrong:)

Answer: SnO2 + 2 H2 = Sn + 2 H2O

Explanation: I used a balance equation website. It's called WebQC if you want to check it out for future help.

Answer: Friction

Explanation: Friction is a force that opposes motion. When two objects are in contact, friction is acts in a direction opposite to the motion of the object.  Please give me brainliest!!!!!!!

Answer: friction: The resistance an object meets when moving over a surface or through a gas or liquid; it is the force that resists the motion of two surfaces that are touching each other.

Explanation:

Answer: The molarity of solution is 3.37 M

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

[tex]Molarity=\frac{n\times 1000}{V_s}[/tex]

where,

n = moles of solute = 0.614  

[tex]V_s[/tex] = volume of solution in ml = 182 ml

Now put all the given values in the formula of molarity, we get

[tex]Molarity=\frac{0.614\times 1000}{182}=3.37M[/tex]

Therefore, the molarity of solution is 3.37 M

Answer:

D. the atomic mass increases from left to right

Explanation:

Answer:

This is your answer ☺️☺️☺️

Answer:

-23.15

Explanation:

Answer:

They're considered nonrenewable because they take millions of years to develop. They can't be renewed as fast as we're taking them.

Answer:

i would go for the 2nd as far as i know they were a big continent and an earthquake separes them all

Answer:

1.56g/L it will be as per my calculation if I am not wrong so

Answer: D: 1.43

The expected density of the given sample of oxygen gas at STP can be calculated using the ideal gas law equation:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.

At STP, the pressure is 1 atm and the temperature is 273 K. We are given that the mass of the oxygen gas is 4.8 g. To find the number of moles of oxygen gas, we can use its molar mass, which is 32.00 g/mol:

n = mass / molar mass = 4.8 g / 32.00 g/mol = 0.15 mol

Using the molar volume of an ideal gas at STP, which is 22.4 L/mol, we can find the volume of the oxygen gas:

V = n × molar volume = 0.15 mol × 22.4 L/mol = 3.36 L

Therefore, the expected density of the given sample of oxygen gas at STP is:

density = mass / volume = 4.8 g / 3.36 L = 1.43 g/L

Therefore, the expected density of the given sample of oxygen gas at STP is 1.43 g/L.