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lora16 [44]
3 years ago
8

What are atoms held together by

Chemistry
2 answers:
san4es73 [151]3 years ago
7 0
Chemical bonds is what atoms are held together by
igomit [66]3 years ago
5 0
Chemical bonds hopes this helps you
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Water left in a a freezer is called
Masteriza [31]

Water left in a freezer is called ice

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3 years ago
To make a 2 M solution of calcium chloride (CaCl2), you would place how many grams of CaCl2 into a container and then add how mu
belka [17]

Answer:

For a volume of 1 liter, we have a total mass of 220 grams of CaCl2 ( Option A)

Explanation:

<u>Step 1: </u>Given data

The concentration of the solution we want to make is 2M

2M = 2 moles/ L So the volume = 1L

The molar mass of CaCl2 is = 40 + 2*35 = 110g/mole

<u>Step 2:</u> Calculate number of moles

If we consider the volume = 1 L then for a concentration of 2M, this means the number of moles is 2

<u>Step 3:</u>  Calculate mass

The molar mass of CaCl2 = 110 g/mole

This means 110 grams per 1 mole

for 2 moles the mass is 220 grams

This means that for a volume of 1 liter, we have a total mass of 220 grams of CaCl2

6 0
3 years ago
MLS teams where they are located
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They are located in the U.S.A
8 0
3 years ago
What process at the surface of the Earth is part of the formation of sedimentary rocks?
OLga [1]

Answer:

Clastic sedimentary rocks are made up of pieces (clasts) of pre-existing rocks. Pieces of rock are loosened by weathering, then transported to some basin or depression where sediment is trapped. If the sediment is buried deeply, it becomes compacted and cemented, forming sedimentary rock.

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3 0
3 years ago
How to balance _h2s+ _o2 = _h2o+ _s
goldfiish [28.3K]

Answer:

<u>2</u>H₂S + <u>1</u>O₂ → <u>2</u>H₂O + <u>2</u>S

Explanation:

<u>SOLUTION :-</u>

Balance it by using 'hit & trial' method , and you'll get the answer :-

<u>2</u>H₂S + <u>1</u>O₂ → <u>2</u>H₂O + <u>2</u>S

<u></u>

<u>VERIFICATION :-</u>

<em>In reactant side of equation :-</em>

  • Number of atoms in H = 2×2 = 4
  • Number of atoms in S = 2×1 = 2
  • Number of atoms in O = 1×2 = 2

<em>In product side of equation :-</em>

  • Number of atoms in H = 2×2 = 4
  • Number of atoms in O = 2×1 = 2
  • Number of atoms in S = 2×1 = 2

Number of atoms of each element is equal in both reactant & product side of equation. Hence , the equation is balanced.

5 0
3 years ago
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