What three major steps make up the water cycle?

Chemistry

1 answer:

Svetllana [295]3 years ago

6 0

Evaporation, condensation, and persipatation (sorry for spelling percipataion wrong 0n0)

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I need answer for a. (ii) pls

allsm [11]

Answer:

Stopwatch

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4 0

3 years ago

Gallium (Ga) consists of two naturally occurring isotopes with masses of 68.926 and 70.925 amu. (a) How many protons and neutron

pav-90 [236]

Answer:

$neutrons_{Ga-69}=38\\\\neutrons_{Ga-71}=40$

Explanation:

Hello!

In this case, since isotopes of the same element have the same number of protons and electrons but different atomic mass, we can compute the number of neutrons by subtracting the number of protons to the atomic mass of the isotope; thus, for Ga-69 and Ga-71 (rounded up to whole numbers), we obtain:

$neutrons_{Ga-69}=69-31=38\\\\neutrons_{Ga-71}=71-31=40$