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icang [17]
2 years ago
6

How does chemical energy plays a role in chemical reactions

Chemistry
1 answer:
goldenfox [79]2 years ago
8 0

Answer:

In a chemical reaction, energy is used for breaking the bonds of the reactants also energy is used in formation of new bonds. So, there are two ways to produce the energy in a reaction and they are either exothermic reaction (producing energy) or endothermic reaction (consuming energy from the surroundings).

Explanation:

hope this helps

i am so sorry if this is the wrong answer

plz mark brainliest

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Does anyone know the answer please?
erica [24]

Answer:Cs2O + H2O —> 2CsOH [2Cs+ + 2OH-]

Explanation: Cs is the most electropositive element, with electron structure [Xe] 6s1.

8 0
3 years ago
Convert to standard notation 1.312 x 10-2
Neporo4naja [7]
Hey, The answer is 11.12 I hope this helps you out 
4 0
3 years ago
Read 2 more answers
Whats the number of moles of O2(g) needed to completely react with 8 moles of CO(g).
slava [35]
A mole of CO2 = 2 moles of O2
8 CO moles x 2 =

16 moles
7 0
3 years ago
One gram is equal to ____ nanograms?
Katen [24]

Answer:

A

Explanation:

1g=1000mg

1g= 1000 000 micro gram

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5 0
3 years ago
For the reaction 4 Fe + 3 O2 -> Fe2 O3, explain how you would calculate the moles of iron needed to make 10 moles of Fe2O3
Hatshy [7]

Answer:

20 moles

Explanation:

4 Fe + 3O₂ → Fe₂O₃

The chemical equation provided is not yet balanced so let's start by balancing it.

4 Fe + 3O₂ → 2 Fe₂O₃

The equation is now balanced with 4 Fe atoms and 6 O atoms on both sides of the equation. It is important to ensure that the chemical equation is balanced, as only then will it tell you the relationship of the reactants and products in terms of mole.

Looking at the coefficients of Fe and Fe₂O₃, 4 moles of Fe is needed to make 2 moles of Fe₂O₃.

This can be simplified into the mole ratio below.

Fe: Fe₂O₃= 2: 1

This means that for every mole of Fe₂O₃, twice the amount of Fe (in moles) is needed.

Thus for 10 moles of Fe₂O₃,

amount of Fe needed

= 10 ×2

= 20 moles

3 0
3 years ago
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