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DedPeter [7]
4 years ago
9

Help me for number 8 and 9

Chemistry
1 answer:
krek1111 [17]4 years ago
5 0
Both of the lizards have adapted by having their skin the same colour as their habitat so they could camouflage into the environment and not be spotted by predators.

the rabbit population would decrease as the rabbits would be unfamiliar with the new predators way of hunting so they wouldn't have adapted to be able to get away from the new predator
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3 years ago
A sample of tin (II) chloride has a mass of 0.49 g. After heating, it has a mass of 0.41 g. 
lyudmila [28]

Answer:

16 percent

Explanation:

Just answered the question

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3 years ago
Why are scientific models important in the study of science? A. They are useful only for teaching students about science. B. The
madreJ [45]
The correct answer should be B.
The correct answer would be B.
4 0
3 years ago
Read 2 more answers
A stock solution has a concentration of 1.5 M NaCl and is diluted to a 0.80 M solution with a volume of 0.10 L. What volume of t
ioda

Answer:

0.053 L  is the volume of concentrated solution that was used

Explanation:

Let's determine the answer of this, by rules of three.

There is also a dilution formula.

Molarity is a sort of concentration that indicates the moles of solute in 1L of solution.

In 1 L of concentrated solution, there are 1.5 moles of NaCl

In 1 L of diluted solution, there are 0.80 moles.

The volume for the diluted solution is 0.10L

The rule of three will be:

1L of solution has 0.80 moles of solute

Then, 0.10L of solution must have (0.1 . 0.8)/1 = 0.08 moles

This moles came from the concentrated solution, and we know that in 1L of this solution we have 1.5 moles. Therefore the rule of three will be:

1.5 moles are in 1L of solution

0.08 moles were in (0.08 . 1L / 1.5) = 0.053 L (This is the volume of concentrated solution that was used)

Dilution formula is: M conc . Vol conc = M diluted . Vol diluted

1.5 M . Vol conc = 0.80 M . 0.10L

Vol conc = 0.80 M . 0.10L / 1.5M = 0.053L

4 0
3 years ago
Read 2 more answers
Need help plz help any one
dimulka [17.4K]
Hi!

Composition: the way in which a whole is made up

Hope I helped!
Have a nice day!
6 0
3 years ago
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