Can someone help me on 1 and 2

Chemistry

2 answers:

uranmaximum [27]3 years ago

7 0

Growth is 1. Reproduction is 2.

Because in the years the boy grew that is a characteristic of life. And the Cat giving birth is reproduction because it is when new life is made

pav-90 [236]3 years ago

6 0

I believe 1 is growth and 2 is reproduction. Hope this helps.

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A chemist has 3.55x1022 molecules of nitrogen monoxide. How

Alina [70]

Answer:

<h2>0.059 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

$n = \frac{N}{L} \\$

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

$n = \frac{3.55 \times {10}^{22} }{6.02 \times {10}^{23} } \\ = 0.05897...$

We have the final answer as

<h3>0.059 moles</h3>

Hope this helps you

6 0

3 years ago

An isotope of potassium with a half-life of roughly one billion years is often used in radioactive dating. This isotope decays t

Archy [21]

Answer : The chemical symbol for the element that results from this process is, (Ar) for argon.

Explanation :

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$_Z^A\textrm{X}+_{-1}^0\textrm{e}\rightarrow _{Z-1}^A\textrm{Y}$