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2 years ago

You've probably heard that some types of bacteria can cause infections and make you sick.

Chemistry

1 answer:

Novosadov [1.4K]2 years ago

6 0

Answer:

(A) Plants would probably not have enough nitrogen.

Explanation:

According to the passage, bacteria help us digest our food and make yogurt. But it is the bacteria in the soil specifically that "Cycle nitrogen through the ecosystem, which plants rely on"

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Michelle has a beaker containing NaCl. What is in Michelle's beaker

True [87]

Sodium chloride is in her beaker

3 0

2 years ago

Read 2 more answers

What are two characteristic properties of chlorine that distinguish it from oxygen?

sesenic [268]

Well one characteristic gases and the state of matter(one of the distinct form i which matter exist)

3 0

3 years ago

A "fizz-keeper" is a small air pump that you can place on an opened soda bottle. When operated the pump is used to pressurize th

AnnZ [28]

Answer: increase

Explanation:

Henry's law states that the amount of gas dissolved or molar solubility of gas is directly proportional to the partial pressure of the liquid.

As soda contains carbon dioxide dissolved in water.

The equation given by Henry's law is:

$C_{CO_2}=K_H\times p_{CO_2}$

where,

$C_{CO_2}$ = solubility of carbon dioxide in water

$K_H$ = Henry's constant

$p_{CO_2}$ = partial pressure of carbon dioxide

Thus on increasing the pressure, the solubility of carbon dioxide also increase.

3 0

3 years ago

6 moles of H2O is equal to how many molecules?

bagirrra123 [75]

A mole is equal to 6.02x10^23, so one mole of H2O has 6.02x10^23 water molecules. To get how many of them are in 6 moles you need to multiple it by six:
(6.02x10^23)x6= 3.612x10^24
So, there’s 3.612x10^24 water molecules in 6 moles of water

4 0

3 years ago

A certain element X has four isotopes. 5.845% of X has a mass of 53.93961 amu. 91.75% of X has a mass of 55.93494 amu. 2.123% of

Akimi4 [234]

Answer:

Average atomic mass of element X is 56.19 amu

Explanation:

Given:

Four isotopes of X:

5.845% of X has a mass of 53.93961 amu.

91.75% of X has a mass of 55.93494 amu.

2.123% of X has a mass of 56.93539 amu.

0.2820% of X has a mass of 57.93328 amu.

To find: average atomic mass of element X

Solution:

Isotopes are variants of a particular chemical element such that they have the same number of protons but different number of neutrons.

Average atomic mass of element X = $\frac{53.93961+55.93494+56.93539+57.93328}{4}=\frac{224.74322}{4}=56.185805\approx 56.19$

So, the average atomic mass of element X is 56.19 amu.

5 0

3 years ago