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Luda [366]
3 years ago
8

Please answer! I need help!

Health
1 answer:
Otrada [13]3 years ago
8 0
I think its B i hope it helps
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shutvik [7]

Answer:Coal. Coal

Oil

Natural gas

water

copper

Explanation:

8 0
2 years ago
A 3.0% (m/v) potassium chloride solution has a volume of 25.0 mL. How many moles of potassium chloride are in the sample?
Oduvanchick [21]
Using your knowledge of m/v = g/mL, you can start by putting that in the equation as:

\frac{3g}{100mL}

And you know that the volume is 25 mL. So you could put this into the equation as:

\frac{25mL}{1}

And you also know that the molar mass of KCl is 74.55g (K = 39.1 g/mol and Cl = 35.45 g/mol. Add them together to get 74.55g/mol).

We can then put this in the equation as:

\frac{1mol}{74.55g}

Then, we can mulitply them all together:

\frac{3g}{100mL}*  \frac{25mL}{1} * \frac{1mol}{74.55g}=0.01 mol

And now we know that there are 0.01 moles of KCl in the sample.
8 0
3 years ago
Substance abuse and negatively influences which of the following Dimensions of Wellness ​
tankabanditka [31]

Answer:

D. All of the Above

Explanation:

3 0
3 years ago
I need to write notes about proteins I need more info pls
seraphim [82]
Proteins<span>: Large molecules composed of one or more chains of amino acids in a specific order determined by the base sequence of nucleotides in the DNA coding for the </span>protein<span>. </span>Proteins<span> are required for the structure, function, and regulation of the body's cells, tissues, and organs.</span>
4 0
3 years ago
Which of these can develop in the uterus
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