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Contact [7]
3 years ago
5

According to the law of conservation of mass the mass of reactants will be _____to the mass of products

Chemistry
1 answer:
lana [24]3 years ago
8 0
Equal. Good luck with other questions!
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Which equation represents single replacement reaction? A) CH4 + 2 02 → CO2 + 2 H2O B) CaCO3 + CaO + CO2 C) 2 Na + 2 H2O → 2 NaOH
loris [4]

Answer:

C) 2 Na + 2 H2O → 2 NaOH + H2.

Explanation:

Hello there!

In this case, according to the given chemical reactions, it is possible to firstly understand that a single displacement reaction is characterized by the presence of a single element as the first reactant and a compound as the second one, thus, yielding a compound as the first product and a single element as the second one.

In such a way, according to the given choices, it possible to note that C) 2 Na + 2 H2O → 2 NaOH + H2 is the only one with the aforementioned condition as the element at the reactants side is Na and at the products side is H2.

Best regards!

6 0
2 years ago
I need help on this asp
k0ka [10]

Answer:

copper or steel

Explanation:

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3 0
3 years ago
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How many total atoms in 3CuSO4
Step2247 [10]

Answer:

18

Explanation:

Element   Symbol   no of Atoms

Copper           Cu                3

Sulfur            S                3

Oxygen           O                  12

                                              18 = total

5 0
2 years ago
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Select the correct answer.
Crazy boy [7]

Answer:

A. Butane

Explanation:

"Butane is a gas above -0.5°C, but when slightly pressurized, forms a liquid. In this form, it is used in cigarette lighters and lighter sticks."

Hope this helps!

4 0
2 years ago
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Which of the following is most likely to be observed by a physiologist?
Mazyrski [523]
The answer is b although if you think about it all could apply
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3 years ago
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