3 years ago

Describe three signs that a chemical reaction has taken place and give an example of each sign

Chemistry

1 answer:

il63 [147K]3 years ago

7 0

Color change, temperature change, bubbling, state change

green to blue, hot to cold, bubbles (lol), and liquid to gas

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Which two processes turn layers of loose sediment into hard sedimentary rock? (ASAP)

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The density of magnesium is 1.7 g/cm3, and the density of iron is 7.9 g/cm3. Consider a block of iron with a mass of 819 g. What

BigorU [14]

Answer:

mass of Mg=0.016g

Explanation:

P(Mg)=1.7g/cm³

P(Fe)=7.9g/cm³

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The half-life of plutonium-238 is 87.7 years.

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