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ruslelena [56]
2 years ago
6

Help please I’ll mark as brainiliest

Chemistry
1 answer:
fredd [130]2 years ago
8 0

Answer:

         B             B

W      BW          BW        

W       BW          BW

Explanation:

Hope this helps

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All compounds are molecules

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Explanation:

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The valence electrons should be the correct answer
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atomic mass

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for 2Na (s) +Cl2(g)->2NaCl(s) how many grams of sodium chloride will be made from 115 g of sodium metal when when reacted wit
alexandr1967 [171]

 The grams  of sodium   chloride that will be made is 292.5 g


<u><em>calculation</em></u>

2Na  +Cl₂ → 2NaCl

step 1: calculate the  moles of Na

moles  =   mass/molar mass

From periodic table the  molar mass  of Na = 23 g/mol

moles = 115 g/23 g /mol =  5  moles

Step 2 : use the mole ratio to determine the  moles of NaCl

Na:NaCl   is  2:2 = 1:1  therefore the moles of NaCl  is also= 5 moles


Step  3: find the mass of NaCl

mass= moles  x molar mass

The  molar mass of NaCl = 23 + 35 .5 =58.5 g/mol

mass= 5 moles x 58.5 g/mol =292.5  g




5 0
3 years ago
A student uses a solution of potassium hydroxide to titrate a solution of nitric acid. Which question is the student trying to a
Mnenie [13.5K]

Answer:

A. What is the concentration of nitric acid?

Explanation:

its right

4 0
2 years ago
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