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2 years ago

7. True or False. Camouflage is a physical adaptation.

1 answer:

8 0

7. true
8. false
9.being able to live in and out of water (i cannot think of another one, sorry)
10. genes (again, i do not know the other one)
11. not sure
12. not sure

i am so sorry this is all i could give you. other people please tell them the other answers

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How many protons electrons and neutrons does the isotope nitrogen 15 have

Ivenika [448]

Answer:

The atomic number ofN157
The number of protons is 7
The number of electrons is 7
The number of neutrons is 8

Explanation:

The atomic number of Nitrogen is 7 because Nitrogen has 7 protons.
The seven protons attract 7 electrons in the ground state.

If the atom had fewer or more than 7 protons the atom would not be Nitrogen.

The mass of the atom is the sum of protons and neutron. so

p + n = mass ( protons (p) and neutrons(n) both have an atomic mass of one

7 + n = 15 subtract 7 from both sides

7−7+n=15−7

n = 8

4 0

2 years ago

If a saturated solution of potassium chloride is cooled from 80℃ to 50℃,how much precipate is formed

harina [27]

Roughly 39 grams, give or take 1 gram

7 0

2 years ago

Which quantity will increase if the temperature is raised?

Irina-Kira [14]

OD.......................

4 0

3 years ago

What happens to temperature as you raise the pressure?

Wittaler [7]

Answer:

hey there

Your temp would increase

7 0

2 years ago

If one gram of sulphur dioxide contains x molecules what will be the number of molecules in 1g of methane

evablogger [386]

The ratio of molecules in sulphur dioxide and methane will be the same as the ratio of their moles. So, first of all we should find out the number of moles of sulphur dioxide in 1 gram of sulphur dioxide in 1 gram of sulphur dioxide, and the number of moles of methane in 1 gram of methane. This can be done as follows :

(i) The molecular formula of sulphur dioxide is $SO_{2}$

So, $1$ mole of $SO_{2}$ = $Mass$ $of$ $2'O'$

$=32+2*16$

$= 64$ grams

Now, $64g$ of sulphur dioxide $= 1$ mole

So, $1g$ of sulphur dioxide = $\frac{1}{64}$ mole

Thus, we have $\frac{1}{64}$ mole of sulphur dioxide and it contains molecules in it. Now, since equal moles of all the substance contain equal number of molecules, therefore, $\frac{1}{64}$ mole of methane will also contain x molecules of methane.

(ii) Molecular formula of methan is $CH_{4}$