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RSB [31]
3 years ago
6

Select the correct answer.

Chemistry
2 answers:
german3 years ago
6 0

Answer:

B. Hydrogen

Explanation:

The most abundant gas is hydrogen which is fuel used by stars to create energy.

Vsevolod [243]3 years ago
3 0

Answer:

B. Hydrogen

Explanation:

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Butane, c4h10, is a component of natural gas that is used as fuel for cigarette lighters. the balanced equation of the complete
mars1129 [50]

Molar mass of butane = 12g/mol*4+1g/mol*10=58g/mol

Mass of 2 moles of butane=2mol*58g/mol=116g

2c4h10(g)+13o2(g)->8co2(g)+10h2o(l)

<span>116g                        8 moles</span>

<span>3.20g                           x</span>

 

116g butane/8moles CO2=3.20g butane/x

x=3.20g butane*8moles CO2/116g butane=0.2207moles CO2

T=23°C=296K

PV=nRT

V=nRT/P=0.2207moles*0.082(atm*dm³/(K/mol))*296K/(1atm)=5.36dm³

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3 years ago
Iron(111)Carbonate +cesium &gt; cesium carbonate +iron balced
ipn [44]

Balanced chemical equation for the given reaction is Fe₂(CO₃)₃ + 6Cs → 3Cs₂CO₃ + 2Fe.

<h3>What is balanced equation?</h3>

Balanced chemical equations are those equations in which all entities are present in equal amount on reactant side as well as on product side.

Given balanced chemical reaction is:
Fe₂(CO₃)₃ + 6Cs → 3Cs₂CO₃ + 2Fe

Above given equation is a balanced chemical equation where all atoms of reactant as well as of products are present in same amount.

Hence, required balanced equation is Fe₂(CO₃)₃ + 6Cs → 3Cs₂CO₃ + 2Fe.

To know more about balanced chemical reaction, visit the below link:
brainly.com/question/26694427

#SPJ1

3 0
2 years ago
Baking soda fizzing in vinegar is an example of a
Degger [83]
The correct answer is the second option. <span>Baking soda fizzing in vinegar is an example of a chemical change. This example is a chemical reaction which undergoes a chemical change since new substances are being formed the fizzing of the system represent that gas is being produced by the reaction.</span>
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3 years ago
The d orbital in the most stable configuration for Cu would be one that has how many electrons
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The most stable configuration for Cu (copper) would be 1s2 2s2 2p6 3s2 3p6 4s2 3d9 for the noble gas configuration would be (Ar) 4s2 3d9.

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3 years ago
Which equation represents a chemical reaction
max2010maxim [7]

Answer:

A balanced chemical equation represents a chemical reaction that obeys the Law of Conservation of Mass (Matter). It can be thought of as describing how many atoms or molecules of reactants are consumed in order to produce a certain number of atoms or molecules of products.

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3 years ago
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