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ella [17]
3 years ago
13

Which of the following descriptions of the electron dot structure corresponds to an element in the s block?

Chemistry
2 answers:
likoan [24]3 years ago
6 0
I can back up the first persons answer, it is *C*
kramer3 years ago
3 0

Answer:

Option (3) is the correct answer.

Explanation:

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3 years ago
How many moles of NaCl are created as a result of decomposing 12 grams of NaClO3? (molar mass of Na=23, Cl=35, O=16)
Harman [31]

Answer: 0.113 moles of NaCl are created as a result of decomposing 12 grams of NaClO_3.

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}   

\text{Moles of} NaClO_3=\frac{12g}{106.5g/mol}=0.113moles

The balanced chemical equation for decomposition of NaClO_3 is:

2NaClO_3\rightarrow 2NaCl+3O_2  

According to stoichiometry :

2 moles of NaClO_3 give = 2 moles of NaCl

Thus 0.113 moles of NaClO_3 give =\frac{2}{2}\times 0.113=0.113moles  of NaCl

Thus 0.113 moles of NaCl are created as a result of decomposing 12 grams of NaClO_3.

8 0
3 years ago
List all the physical properties of the iceberg.
Semmy [17]

Answer: My answer is in the explanation

Explanation:

Physical and mechanical characteristics of iceberg ice were studied from samples collected near the shores of eastern Newfoundland. Although the physical characteristics show considerable diversity, iceberg ice has some common features and is generally porous, lacks significant concentrations of dissolved materials, contains internal cracks and has an irregular interlocking grain structure.

3 0
3 years ago
PLEASE HELP ME!!!! Brainiest to the first person to get it right
Nastasia [14]

<em>A: Endoplasmic Reticulum, Chloroplasts </em>

Hoped this helped have a nice day

5 0
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Read 2 more answers
Baking soda has a pH of 8. Its a(n) _________ substance
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Answer:

it's an acid

Explanation:

because itis soda

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