3 years ago

Indicate whether the following represents a Chemical or Physical change: Milk sours

Chemistry

1 answer:

marusya05 [52]3 years ago

4 0

Answer:

Chemical Change

Explanation:

Physical change normally mean that the change can revert back to its orginal state, which in this case that is not possible therfore it is a chemical change.

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Which action can help slow down the process of chemical weathering?

lutik1710 [3]

Answer:

Explanation:

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3 years ago

Corrections here: 1. When calcium reacts with water, the temperature changes from 18c to 39c

Ugo [173]

When calcium reacts with water, the temperature changes from 18c to 39c is an exothermic reaction as energy is releasing and increasing the temperature.

<h3>What is an exothermic reaction?</h3>

Exothermic reaction are those reactions in which energy is released when a reaction completes.

An example is burning of wood.

Thus, when calcium reacts with water, the temperature changes from 18c to 39c is an exothermic reaction as energy is releasing and increasing the temperature.

Learn more about exothermic reaction

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2 years ago

Which statement is true about the compound ammonium sulfate [(NH4)2SO4] ?

BabaBlast [244]

Answer:

It is a salt of two polyatomic ammonium ions and one polyatomic sulfate ion

Explanation:

Ammonium Sulfate is an ionic compound formed by two polyatomic ions, Ammonium NH+4 and Sulfate SO−4 . ... Therefore, it will take two +1 ammonium ions to balance the one -2 sulfate ion. This will make the formula for Ammonium Sulfate (NH4)2SO4

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3 years ago

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A bottle rocket experiences a 500 N force to the right and 300 N of air resistance to the left. (A) Will accelerate to the left

Tamiku [17]

B) It will accelerate to the right because 500 N> 300 N

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3 years ago

If a horse is moving and then come to a stop is the horse accelerating or decelerating

quester [9]

Answer:

decelerating hope this helps❤️