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Law Incorporation [45]
3 years ago
9

Pls help fast!! Test due soon!!!

Chemistry
2 answers:
blsea [12.9K]3 years ago
7 0

Answer:

its compound option c compound comprises of two or more atoms

Alex787 [66]3 years ago
5 0

Answer:

molecules

Explanation:

A molecule is formed when two or more atoms join together chemically. 

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Which of the following is a property of acids
m_a_m_a [10]

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They are sour. =)

Explanation:

3 0
3 years ago
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A radioactive nuclide that is used for radiation therapy for cancer has 33 neutrons and a mass number of 60. Which is the correc
sineoko [7]

Answer:

Last option is the correct choice.

Explanation:

Number of protons = 60-33 = 27

Superscript 60 Subscript 27 upper C o.

Best Regards!

4 0
3 years ago
How many moles of hcl are required to neutralize aqueous solutions of these bases:
Lemur [1.5K]
The answers are a.) 0.03 mol KOH requires 0.03 mol HCl, b.) 2 mol NH3 requires 2 mol HCl and c.) 0.1 mol Ca(OH)2 requires 0.2 mol HCl.
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We need to write the balanced equations for each reactions to find out the stoichiometry for each reactants. 
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From the balanced equations, we can see that 1 HCl reacts with 1 KOH, therefore if 0.03 mol KOH is reacted then 0.03 mol HCl must also be present. 

b.) HCl(aq) + NH3(aq) ) → NH4Cl(aq)
If 2 moles of NH3 are reacted then 2 moles of HCl must also be present since 1 HCl reacts with 1 NH3 from the balanced reaction.

c.) 2HCl(aq) + Ca(OH)2(s) → CaCl2(aq) + 2H2O(ℓ)
We can see that 2 HCl react with 1 Ca(OH)2, hence if 0.1 mol of Ca(OH)2 is reacted then 0.2 mol HCl must also be present.
8 0
3 years ago
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Plsssss help ii need help
gulaghasi [49]

Answer:

wut u need help with

Explanation:

4 0
3 years ago
What are the 5 parts of an atom?
saul85 [17]
N the nucleus, there are protons and neutrons. That's two parts. 

<span>Outside the nucleus, there are electrons. That's a total of three parts and that is all that chemists discuss. Theoretical physicists talk about other sub nuclear "parts", but if you include them, the number goes way over 5. </span>

<span>The "shells", "sub-shells", "orbits", "orbitals", "probabilities" and the like are not physical parts, but only descriptions of energy</span>
3 0
3 years ago
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