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NikAS [45]
2 years ago
15

Help me pls!!!!!!!!!!!

Chemistry
1 answer:
Ludmilka [50]2 years ago
7 0

Answer:

i disagree with seths friend

Explanation:

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Which of the following is a strong base?
malfutka [58]
C. NaOH ammmonia is also an base but not as strong as NaOH
3 0
2 years ago
The chemical formula for magnesium oxide is MgO. A chemist determined by measurements that 0.030 moles of magnesium oxide partic
tamaranim1 [39]

Answer:

1.209g of MgO participates

Explanation:

In this problem, we have 0.030 moles of MgO that participates in a particular reaction.

And we are asked to solve for the mass of MgO that participates, that means, we need to convert moles to grams.

To convert moles to grams we need to use molar mass of the compound:

<em>1 atom of Mg has a molar mass of 24.3g/mol</em>

<em>1 atom of O has a molar mass of 16g/mol</em>

<em />

That means molar mass of MgO is 24.3g/mol + 16g/mol = 40.3g/mol

And mass of 0.030 moles of MgO is:

0.030 moles MgO * (40.3g/mol) =

<h3>1.209g of MgO participates</h3>
3 0
2 years ago
Would a pure substance ever settle out and form two distinct layers? Explain your reasoning.
garik1379 [7]

Answer:

No, the only way they can be separated is through chemical methods. ... A compound is made up of two or more elements that are chemically combined and elements are combined to form a compound.

Explanation:

6 0
3 years ago
Which of the following statements about subatomic particles best characterizes electrons? A positive charge, light, circling the
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Every electron carries one elementary negative charge.  Concerning mass,
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Electrons don't necessarily have to stay connected to an atom, but when they do,
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So you should select (C): ==> Negative, ==> light, ==> circling the nucleus.
7 0
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good luck!
4 0
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