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Ivahew [28]
3 years ago
11

Please help me with 6 7 8 and don’t send me a link tell me here please

Chemistry
1 answer:
lukranit [14]3 years ago
5 0

Answer:

6 b physical properties

7b melting point

8 boiling

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If 16.4 grams of calcium nitrate is heated as shown in the reaction:
vfiekz [6]

Answer:

7.2

Explanation:

you first have to find the number of moles of nitrogen dioxide by using the number of moles for calcium nitrate and the mole to mole ratios

number of moles of calcium nitrate=mass/mm

=16.4/102

=0.16g/mol

then you use the mole to mole ratios

2 : 4

0.16: x

2x/2=0.64/2

x=0.32g/moles of nitrogen dioxide

then you use the formula for the volume

v=22.4n

=22.4×0.32

=7.2

I hope this helps

4 0
2 years ago
The energy produced when nucleons fuse together is called the: Select the correct answer below:
saveliy_v [14]

Answer:

Option C (nuclear binding energy) is the appropriate choice.

Explanation:

  • At either the nuclear scale, the nuclear binding energy seems to be the energy needed to remove and replace a structure of the atom itself into the characterize elements (to counteract the intense nuclear arsenal).
  • Nuclear warheads (bargaining power) bind everything together neutrons as well as protons within an elementary particle.

Some other options in question aren't relevant to the particular instance. So that the option preceding will also be the right one.

7 0
3 years ago
9. Which of Earth’s sphere consists of all living things? A. hydrosphere B. geosphere C. biosphere
Anna007 [38]

Answer:

i think its b

Explanation:

i took it

3 0
3 years ago
John Dalton and Antoine Lavoisier were alchemists who tried to convert diamonds to gold.
larisa86 [58]
This is false. They were both chemists and they made many discoveries such as realizing that charcoal and diamond are different forms of the same element and proposing an atomic theory, but they never tried to turn diamonds to gold.
8 0
3 years ago
Read 2 more answers
Which of the following is NOT a reason why index fossils are chosen for determining ages of rocks? Select all that apply.
Anarel [89]

Answer:

Lol

Explanation:

5 0
3 years ago
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