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Neko [114]
3 years ago
13

Which observation does not indicate that a chemical reaction has occurred?

Chemistry
1 answer:
castortr0y [4]3 years ago
6 0

Answer:

change in the total mass of substances

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snow_lady [41]

Explanation:

a chemical reaction that absorbs energy is known to be endothermic since heat is being taken in by the reaction. The value of the transition state would be 150 because you have to subtract the product's enthalpy and the reactant's enthalpy to obtain it. A positive value for the transition state also corroborates that the reaction is endothermic.

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Which group, metals or nonmetals, has the greatest chance to gain electrons and to become negative ions?
tatyana61 [14]
It would be non-metals
8 0
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PLEASE HELP ME ANSWER
IrinaVladis [17]

Answer:

The answer is A: Quantities of thousands are more common than quantities of trillions.

Explanation:

It's just kind of process of elimination. None of the other answers make as much sense

7 0
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If you have salt dissolved in seawater the seawater is acting as the :solute, solvent, or nonpolar sunstance.
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