3 years ago

Living things with fewer than normal helpful bacteria in their guts can become infected more easily

1 answer:

6 0

The answer is true hope this helps

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Paladinen [302]

Answer: 20.2

Explanation:

Mass of isotope 1 = 20

% abundance of isotope 1 = 90.5% = $\frac{90.5}{100}=0.905$

Mass of isotope 2 = 22

% abundance of isotope 2 = 8.0% = $\frac{8}{100}=0.08$

Mass of isotope 3 = 23

% abundance of isotope 3 = 1.5% = $\frac{1.5}{100}=0.015$

Formula used for average atomic mass of an element :

$\text{ Average atomic mass of an element}=\sum(\text{atomic mass of an isotopes}\times {{\text { fractional abundance}})$

$A=\sum[(20\times 0.905+(22\times 0.08)+(23\times 0.015]$

$A=20.2$

Therefore, the average atomic mass of the element is 20.2.

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Katena32 [7]

The answer would be 150 half of 200 and 100 is 150

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slavikrds [6]

I think the answer is A

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Savatey [412]

A; Town A will be cooler than Town B because it is located near the peak of the mountain.
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Irina-Kira [14]

Answer:combustion

Explanation:

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