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Fiesta28 [93]
2 years ago
10

First to help me with these 4 gets brainless HURRYTTT UPPPPP

Chemistry
2 answers:
Bezzdna [24]2 years ago
6 0

Answer: It's A

Explanation:

kompoz [17]2 years ago
3 0

Answer:

A

Explanation:

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Basically, this compound Magnesium(II) Chloride is MgCl2 because it has the same number of protons, neutrons, and electrons all the way. This defines the properties of the compound or atom. 
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When 1 mole of CO(g) reacts with H2O(l) to form CO2(g) and H2(g) according to the following equation, 2.80 kJ of energy are abso
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Since this reaction absorbs heat, it is endothermic.

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Answer: Yes it is. Rust would be considered a chemical reaction because it changes the chemical makeup of the metal.

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5 0
3 years ago
Can someone please help me?
Olin [163]

Answer:

c.)the reactants have the same mass as the products

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