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EleoNora [17]
4 years ago
15

Can someone help me with this?

Chemistry
1 answer:
amm18124 years ago
5 0

Answer:

dnaq tester

Explanation:

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A standard hydrogen atom has how many neutrons? <br>A. 2<br>B. 0<br>C. 1<br>D. 3​
hoa [83]

Answer:

0

Explanation:

standard hydrogen is considered to be protium isotope of hydrogen that has one electron revolving around the nucleus containing one proton and no neutrons.

it's atomic number and mass number is 1

and number of neutrons = mass no. - atomic no.

= 1 - 1

=0

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3 years ago
a plant fertilizer contains 15% by mass nitrogen. in a container of soluble plant food. there are 10.0 oz of fertilizer . how ma
trasher [3.6K]
If we convert the ounces to grams, there are approximately 283.495 grams of plant fertiliser

If nitrogen has 15% of this, all we have to do is divide this number by 100 to get the mass of 1% and multiply it by 15.

In the end, we end up with the mass of 42.5243 g

Hope I helped! xx
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3 years ago
What does ethylene glycol do to the solution in a vehicle’s radiator? It raises the boiling point and lowers the freezing point.
zheka24 [161]

Answer:

It raises the boiling point and lowers the freezing point.

Explanation:

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By adding ethylene glycol I'm not only bringing the melting point to -13°C, but the boiling point of ethylene glycol is 197°C.

since these substances not only lower the freezing point but also increase the boiling point, they are also called a colligative agent

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3 years ago
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Answer:

where is the diagram sisters

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What are properties of the group of elements on the periodic table that have just one valence electron
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<span>The correct answer is, Alkali Metals</span>
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