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Papessa [141]
3 years ago
9

Which of the following elements does not form a diatomic molecule?

Chemistry
1 answer:
gladu [14]3 years ago
6 0

Answer:

C

Explanation:

Neon is a noble gas, which is monoatomic.

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What is the name of CH=CH2 ​
Strike441 [17]

Answer:

CH2 is the chemical name for methylene and belongs to the general compound category of Alkenes. It comprises of a single carbon atom bonded with 2 hydrogen atoms . The general formula for alkenes is C(n)H(2n) with n denoting the number of carbon atoms and thus deciding the name of the compound.

Explanation:

4 0
3 years ago
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Which missing item would complete this alpha decay reaction?<br> 21CF-247 Cm +
Akimi4 [234]

Answer:

the atomic number decreased in 2, from 100 to 100 - 2 = 98. 3) Hence the formed atom has atomic number 98, which is californium, Cf, and the isotope is californium - 253. 4) The item that completes the given alpha decay reaction is: ₉₈²⁵³ Cf.

Explanation:

8 0
2 years ago
Does ultraviolet block sunburn
satela [25.4K]

Answer:

no

Explanation:

8 0
3 years ago
A compound contains 40 g of calcium, 12 g of carbon, and 48 g of oxygen. What is its empirical formula
Deffense [45]

Answer:

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Explanation:

answer attached

hope this helps!

5 0
2 years ago
36.4 g of SnCl2 is dissolved in 135.7 mL of water.
Yuki888 [10]

Answers:

1st: 189.6 g/mol

2nd: 0.1357 L

3rd: 1.41 M

Explanation:

Finding Molar Mass:

SnCl2 = <u>Tin(II) Chloride</u>

Tin has a molar mass of <u>118.71 g/mol</u>

Chloride has a molar mass of <u>35.453 g/mol</u>

Chloride*2 = <u>70.906</u>

<u>118.71 + 70.906 ≈ 189.6 g/mol</u>

Finding Liters of Solution:

L = mL/1000

135.7 mL / 1000 = <u>0.1357</u>

Finding Molarity:

molarity = <u>moles of solute / liters of solution</u>

M = (36.4g /  189.6g) / 0.1357 L = <u>1.41 M</u>

Hope this helped ;)

6 0
2 years ago
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