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Verdich [7]
3 years ago
11

What is the main advantage of using the water displacement method to measure the volume of a metal versus using the length measu

rements?
Chemistry
1 answer:
damaskus [11]3 years ago
6 0

Answer:

okkkkkkkkkkkkkkkkkkkkkkkk

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The ions Cr3+ and O2- combine to form the ionic compound chromium oxide. In what proportions do these ions combine to produce a
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<span>Cr3+ O2- ; the formula is Cr2O3 ( criss cross)</span>
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3 years ago
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Acetic acid (HC2H3O2) is the active ingredient in vinegar. Calculate the mass percent composition of O in acetic acid.
skelet666 [1.2K]

Answer:

53.29% of acetic acid is Oxygen

Explanation:

Step 1: Given data

Acetic acid it's molecular formula is HC2H3O2. This means it consists of 3 elements Carbon, Hydrogen and oxygen.

Step 2: the molar masses

The molecular mass of acetic acid is:

4* H = 4* 1.01 g/mole

2* C = 2*12 g/mole

2*O = 2* 16 g/mole

Total molar mass = 4+ 24+32 = 60.052 g/mole

Step 3: Calculate the mass percent

32 g of the 60.052 g is Oxygen

(32/60.052) *100% = 53.29%

53.29% of acetic acid is Oxygen.

7 0
3 years ago
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The invisible spectrum contains all the colors of the rainbow.<br> A.)True<br> B.)False
frosja888 [35]

Answer:

False

Explanation:

We can see the colors of the rainbow, therefore they are visible.

3 0
2 years ago
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Cell Membranes
Lerok [7]

The procedure to perform a cell membrane experiment is to:

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  • This is done to check the content of the pigment
  • It is also meant to check the pigment leaks out of the cells.

<h3>What is a Cell Membrane?</h3>

This refers to the semi-permeable membrane that is around the cytoplasm of a cell.

Hence, we can see that the main purpose of the cell membrane practical experiment is to test the permeability of a membrane and to see the amount of liquid that a membrane can hold.

Please note that your question is incomplete so I gave you a general overview to get a better understanding of the concept.

Read more about cell membrane here:

brainly.com/question/1768729

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2 years ago
Clayton pulled his back helping friend move and uses a thermal heat wrap to ease his muscle aches. How could Clayton monitor the
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Should be THERMOMETER
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3 years ago
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