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katovenus [111]
3 years ago
9

23)

Chemistry
2 answers:
Tema [17]3 years ago
4 0
Ammonia I think (NH3)
eduard3 years ago
3 0

Answer:

Its C) HClO4

Explanation:

I just took the quiz and it was right :))

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If a star is small, it will remain in the main sequence _____ a large star.
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The correct answer should be "longer than".

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Select the foods below that make up the 8 most common allergens.
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3 years ago
Calculate the molar mass of H2SO4 + 2 NaOH = Na2SO4 + 2 H2O. Please show all work. THANK YOU!
mr_godi [17]

Answer:

<em><u>30.11x1</u></em><em><u>0</u></em><em><u>²</u></em><em><u>³</u></em>

Explanation;

brainleist please

7 0
3 years ago
What amount of oxygen gas in moles contains 1.8x10^22 molecules?​
exis [7]

Answer:

<h2>0.03 moles </h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

We have

n =  \frac{1.8 \times  {10}^{22} }{6.02 \times  {10}^{23} }  \\  = 0.02990...

We have the final answer as

<h3>0.03 moles </h3>

Hope this helps you

7 0
3 years ago
What 2 parts of an atom does the<br> atomic # represent?
Leona [35]

Answer:

protons and the nucleus

Explanation:

the atomic number represents the number of protons in the atoms nucleus

8 0
3 years ago
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