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emmainna [20.7K]
3 years ago
13

1. List the seasons from longest to shortest, including the number of days in each season.

Chemistry
1 answer:
GenaCL600 [577]3 years ago
4 0
Search it up bro it’s on the internet lol
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Identify the Lewis acid in this balanced equation:
MAXImum [283]

Answer:

a

Explanation:

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What are members one through six of the alkyne family
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The Transition Elements can be divided into two types. List each type.
jenyasd209 [6]
Main group elements
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What is the mass of 3.8 × 10^24 atoms of argon (ar)? 0.0039 g 0.16 g 6.3 g 250 g
ale4655 [162]
Atomic mass Ar => 39.948 a.m.u

39.948 g --------------- 6.02x10²³ atoms
?? g -------------------- 3.8x10²⁴ atoms

(3.8x10²⁴) x 39.948 / 6.02x10²³ => 250 g

hope this helps!

5 0
3 years ago
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Determine moles of 1.5g of sodium carbonate.
KIM [24]

Answer:

0.014mol

Explanation:

Given parameters:

Mass of Na₂CO₃  = 1.5g

Unknown:

Number of moles  = ?

Solution:

Number of moles of a compound is mathematically expressed as;

  Number of moles  = \frac{mass}{molar mass}  

 Molar mass of  Na₂CO₃  = 2(23) + 12 + 3(16) = 106g/mol

 Number of moles = \frac{1.5}{106}   = 0.014mol

8 0
2 years ago
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