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vovangra [49]
3 years ago
9

The diagram show the box for an element in the periodic table . What is the atomic mass of the element shown .

Chemistry
1 answer:
DochEvi [55]3 years ago
8 0

Answer:32.1

Explanation:

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Microscopic shells that are buried under the seabed are converted to organic sedimentary rocks. During this process, which prope
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Mass of the shells will remain constant.

Explanation:

Sedimentary rocks are formed by the rocks that have been weathered. The microscopic shells, small pieces of rocks and mineral particles get deposited on this weathered sedimentary rocks.

The texture or chemical properties of the microscopic shell get changed. but the amount of microscopic shell deposited to make sedimentary rocks remains the same.

Chalk and coral reefs are the example of sedimentary rocks made up with microscopic shells.

The skeletal part of the shells takes part in rock formation whose mass remains unchanged although physical and chemical properties go changes.

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4 years ago
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An atom of sodium has 11 protons, 11 electrons,and 12 neutrons, what is its atomic number and mass number?
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Example: A sodium atom contains 11 protons, so its atomic number is 11. Mass number is the total of the protons and neutrons together, and it is given the symbol A. Example: A sodium atom contains 11 protons and 12 neutrons; its mass number A is 23<span>.</span>
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What science concept is described in the reading above
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What is in the above ?
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3 years ago
To compare how different types of soil absorbed water, Christian set up an experiment. He poked equal numbers and sizes of holes
lilavasa [31]

Answer:

The empty cup

Explanation:

Got it right on the test

3 0
4 years ago
A gas exerts a pressure of 0.62 atm. Convert this to kPa and mmHg. Be sure to show your work.
IRINA_888 [86]

Answer:

The answer to your question is 0.62 atm = 62.82 kPa = 471.2 mmHg

Explanation:

Data

P = 0.62 atm

P = ? kPa

P = ? mmHg

Process

1.- Look for the conversion factor of atm to kPa and mmHg

 1 atm = 101.325 kPa

1 atm = 760 mmHg

2.- Do the conversions

                  1 atm ----------------- 101.325 kPa

                  0.62 atm ------------  x

                   x = (0,62 x 101.325) / 1

                  x = 62.82 kPa

                   1 atm ------------------ 760 mmHg

                   0.62 atm ------------  x

                   x = (0.62 x 760)/1

                   x = 471.2 mmHg                

4 0
4 years ago
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