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gregori [183]
4 years ago
10

Which of these is a balanced chemical equation?

Chemistry
2 answers:
podryga [215]4 years ago
8 0

Answer: option H

Explanation:

Balanced equation means that the no of atoms on both sides should be equal.

In H, Cl2 + 2NaBr-------> Br2 + 2NaCl

No of Cl atoms, 2=2

No of Br atoms, 2=2

And sodium atoms,2=2

Hence it is balanced equation

And remain are not balanced.

Alex777 [14]4 years ago
3 0
I believe its G because it has the same amount of particles. (I haven't had much background)
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How many atoms of hydrogen are in two moles of ch4?
ziro4ka [17]
There are four Hydrogen atoms in one molecule of Methane (CH₄).
And there are 6.022×10²³ molecules in 1 mole of CH₄.
So,
Number of Hydrogen atoms is 1 mole of CH₄ are,

                      =  6.022 × 10²³ × 4
                 
                      =  2.4 ×10²⁴ Hydrogen Atoms

Now calculating for 2 moles,

As,
                   1 mole of CH₄ contains  =  2.4 ×10²⁴ Hydrogen Atom
Then,
             2 moles of CH₄ will contain  =  X Hydrogen Atoms

Solving for X,
                          X  =  (2 moles × 2.4 ×10²⁴ Hydrogen Atom) ÷ 1 mole

                          X  =  4.8 × 10²⁴ Hydrogen Atoms
5 0
4 years ago
A sample of oxygen gas (O2) at STP has a mass of 48.0 grams. What is the volume of the gas?
zvonat [6]
P * V = n R T 
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<span>mass = mole number * molecular mass </span>
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7 0
3 years ago
Is 2 C4H10 + 13 O2 → 8 CO2 + 10 H2O a double replacement?
natulia [17]

Answer:

The answer to your question is No, it is not.

Explanation:

Data

                C₄H₁₀  +  13O₂   ⇒   8CO₂ +  10H₂O

In a double replacement reaction, two reactants interchange cations an example of these reactions are neutralization reactions. In neutralization reactions, an acid and a base react to form a salt and water.

The reaction of this problem is not a double replacement reaction because the products are carbon dioxide and water, not a salt and water.

The reaction of this problem is a combustion reaction.

8 0
4 years ago
2 points
prohojiy [21]

Answer: An imbalance of electric charge I the surface of an object

-electric charges that are stationary or at rest

-charges that build up on an object

7 0
3 years ago
If element X has 82 protons, how many electrons does it have?
wariber [46]
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hope that helps 
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4 years ago
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