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jeka57 [31]
3 years ago
12

Balance this eqaution:​

Chemistry
1 answer:
klasskru [66]3 years ago
5 0

Answer:

H₂ + CuO → Cu + H₂O

Explanation:

We want to balance the given equation;

H₂ + CuO → Cu(OH)₂ + H₂O

To balance this we have to make sure the number of each element on the left is equal to the number of each element on the right.

Thus, the correct balanced equation is;

H₂ + CuO → Cu + H₂O

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How many molecules are in 3.8 mols of copper?
ioda

Answer:

Hi there!

The correct answer is 2.29 x 10^{24} molecules

Explanation:

To convert from the moles to molecules:

1 mole = 6.022 x 10²³ molecules

so basically you multiply 3.8 by 6.022 x 10²³

and you get: 2.29 x 10^{24}

5 0
4 years ago
When 10.8 g of Silver was reacted with Sulfur, 12.4 grams of product was produced (there was only one product). What is the empi
alexandr1967 [171]

Answer:

Ag2S

Explanation:

10.8 gm of silver, 12.4 gm of silver sulfide, so 12.4 -10.8 = 1,6 gm of sulfur

silver atomic weight is 108, sulfur atomic weight is 32  so

10.8/108;   = 0.10 mole Ag  1.6/32 = 0.05 mole sulfur

so there is a 2:1 ratio of silver to sulfur, so the compound is 2 silver 1 sulfur or Ag2S

5 0
3 years ago
The products of a combustion reaction do NOT include ____. (1 point) water carbon dioxide carbon monoxide hydrogen The products
nalin [4]

the answer is water

Hope this help1

7 0
3 years ago
Read 2 more answers
Given the equation:
svetoff [14.1K]

Answer:

4 moles of HCl will be required to produce 2 moles of H2.

Explanation:

A balanced chemical equation gives the stoichiometric ration of moles of reactants required to produce a certain number of moles of products. The ratio of moles of reactants to moles of products is known as the mole ratio and is constant for a given chemical reaction.

In the given balanced equation of reaction shown below:

Zn + 2HCl → ZnCl2 + H2

The mole ratio of HCl and H2 is 2:1. This means that in this reaction between Zinc metal and hydrochoric acid to produc zinc chloride and hydrogen gas, every two moles of hydrochloric acid used in the reaction will result in the production of one mole of hydrogen gas.

Therefore for two moles of H2 to be obtained from the reaction, twice the number of moles of HCl is required.

Moles of HCl required = 2 × 2 moles = 4 moles of HCl.

7 0
3 years ago
What kind of bond is the result of the transfer of an electron?
serious [3.7K]

Answer:

Answer choice A

Explanation:

When an electron is transferred to another atom, both atoms involved become ions.

5 0
4 years ago
Read 2 more answers
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