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Tema [17]
3 years ago
10

Antibiotics do not reduce the number of helpful and harmful bacteria in the microbiome.

Chemistry
2 answers:
stira [4]3 years ago
7 0

Answer:

false; the purpose of antibiotics is to kill bacteria

Explanation:

mel-nik [20]3 years ago
4 0

It is true, it does reduce the number in both categories.

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An organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
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When an acid is added to a base, which if the following changes in pH might be observed?
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Distinguish between zinc nitrate and lead nitrate ​
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Zinc nitrate gives white ppt. which dissolves in excess ammonium hydroxide and produce a colorless solution whereas lead nitrate gives a chalky white ppt. of lead hydroxide which doesnot dissolve.

Explanation:

Hope this helps :)

7 0
3 years ago
In the following reaction, how many grams of silver can be produced from 49.1 g copper?
notsponge [240]

166.4 g Ag grams of silver can be produced from 49.1 g of copper.

<h3>What is a mole?</h3>

A mole is a very important unit of measurement that chemists use. A mole of something means you have 602,214,076,000,000,000,000,000 of that thing, like how having a dozen eggs means you have twelve eggs.

1 mol Cu + 2 mol AgNO_3 → 2 mol Ag + 1 mol Cu(NO3)2

63.55 g Cu —> 2 x 107.688 g Ag

63.55 g Cu gives 215.376 g of Ag

So, 49.1 g Cu —> \frac{215.376 g X 49.1 g}{63.55 g}

= 166.4 g Ag

Hence, 166.4 g Ag grams of silver can be produced from 49.1 g of copper.

Learn more about moles here:

brainly.com/question/26416088

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5 0
2 years ago
A plasma membrane and a cell wall _____.
klemol [59]
<h3><u>Answer;</u></h3>

<em>D. Have different structures and different functions</em>

A plasma membrane and a cell wall <em><u>have different structures and different functions</u></em>.

<h3><u>Explanation;</u></h3>
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5 0
3 years ago
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