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CaHeK987 [17]
3 years ago
12

Explain how barometric pressure is measured.

Chemistry
1 answer:
Lisa [10]3 years ago
6 0

Answer:

inches of mercury (inHg or “Hg) or millibars.

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Why do atoms want 8 valence electrons?
Neporo4naja [7]

Answer:

1) 8 valence electrons are a full shell that makes the atom more stable.

Explanation:

Due to the octet rule, atoms tend to form compounds in ways that give them eight valence electrons and thus give them the electron configuration of a noble gas, making them stable.

5 0
3 years ago
What is the representative particle for silicon
valentina_108 [34]
<span>The representative particle for silicon is atom of silicon.
</span>Representative particles can be atoms, molecules, formula units or ions. Representative particles depend on the nature of the substance. Silicon is chemical element made of atoms.
For sodium chloride (NaCl) for example, representative particles are ions.
7 0
3 years ago
Please help me i’m struggling
Marrrta [24]

Answeeeeer:

 A. cell

Explanation:

Since A is the smallest in the chart, that would correspond to the cell because thats the smallest out of Tissue, Organ and Organism.

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3 years ago
NaCl + H2SO4 ---&gt; Na2SO4 + HCl<br> Balance the double replacement chemical reaction.
VikaD [51]

Answer:

2NaCl+H2SO4-->Na2SO4+2HCl

Explanation:

There are two Na on the right, so put a 2 in front of NaCl on the left. This makes 3 Cl also, so put a 2 in front of HCl on the right. There are already 2 H on the left, so the equation is balanced.

7 0
4 years ago
An electron has an uncertainty in its position of 513 pm. What is the uncertainty in its velocity?
ella [17]
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4 years ago
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