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OverLord2011 [107]
3 years ago
15

20)

Chemistry
1 answer:
masya89 [10]3 years ago
4 0

Answer:

C.

Explanation:

Also, please help me in my questions tab if you can! Thank you so much

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Zinc metal (Zn) will react with aqueous hydrochloric acid (HCI aq) to produce aqueous zinc chloride (ZnCl2 aq) and hydrogen gas
Debora [2.8K]

Answer:

5

Explanation:

Here, we want to get the equation of the reaction between Hydrochloric acid and Zinc metal

Zinc metal displaces the hydrogen from hydrochloric acid to form zinc chloride

We have the equation of reaction as:

2HCl_{(aq)}\text{ + Zn}_{(s)}\text{ }\rightarrow\text{ ZnCl}_{2(aq)}\text{ + H}_{2(g)}

3 0
1 year ago
How many moles of water can be obtained from the reaction of 4 moles of O2?
Yuliya22 [10]

Answer: 8moles

Explanation:

The reaction below shows the formation of 2 moles of water from 2 moles of hydrogen and 1 mole of oxygen respectively.

2H2(g) + O2 (g) --> 2H2O(l)

So, if 1 mole of O2 produce 2 mole of H2O

4 moles of O2 will produce Z mole of H2O

To get the value of Z, cross multiply

1 x Z = 4 x 2

Z = 8

So, the equation will be 8H2(g) + 4O2 (g) --> 8H2O(l)

Thus, 4 moles of O2 will produce 8moles of H2O .

6 0
3 years ago
Predict the products of the following reaction:
Alexus [3.1K]
MgCO3 + 2LiCl is the product of the above reaction.
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When the chemical energy in the coal is burned it is converted to.
Lunna [17]

Answer:

Mechanical energy

Explanation:

because the heat energy turn into a mechanical energy that spins the engine

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5 facts about climate change
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It can:

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2. release more greenhouse gases

3. affect the Earth

4. melts icebergs

5. animals lose home in Antarctica.

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