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Mars2501 [29]
3 years ago
5

Why do adults have stem cells

Chemistry
2 answers:
inysia [295]3 years ago
5 0

they look after maintenance and repair

Eva8 [605]3 years ago
3 0

Adults have stem cells because they are needed to repair certain tissues in the body such as in the muscles, bone marrow, skin, teeth, heart, and liver, to name a few. Thus, they can develop into many different cell types and function to replace older and damaged tissues.

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116) If the juice from a lemon is mixed with 55% water the lemon juice is the A) solution B) solute C) solvent D) None of the ab
Shkiper50 [21]

Answer:

Explanation:

d because a b and c is in correct

8 0
2 years ago
A 3.0 g sample of a gas occupies a volume of 1.00L at 100C and 740 torr pressure. The molecular weight of the
SOVA2 [1]

Answer:

94.2 g/mol

Explanation:

Ideal Gases Law can useful to solve this

P . V = n . R . T

We need to make some conversions

740 Torr . 1 atm/ 760 Torr = 0.974 atm

100°C + 273 = 373K

Let's replace the values

0.974 atm . 1 L = n . 0.082 L.atm/ mol.K . 373K

n will determine the number of moles

(0.974 atm . 1 L) / (0.082 L.atm/ mol.K . 373K)

n = 0.032 moles

This amount is the weigh for 3 g of gas. How many grams does 1 mol weighs?

Molecular weight → g/mol → 3 g/0.032 moles = 94.2 g/mol

3 0
3 years ago
____Cl2+____H2=____HCl
Genrish500 [490]

Answer:

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6 0
2 years ago
Use the solubility rules from the Lab 4 introduction and your knowledge of qualitative separation schemes from the lab to answer
cluponka [151]

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Explanation:

4 0
3 years ago
Which actions represent endothermic reactions? Check all that apply. an instant ice pack becoming cold, splitting a gas molecule
DerKrebs [107]
Answer is: an instant ice pack becoming cold, splitting a gas molecule and baking bread.

<span>Endothermic reaction is chemical reaction that absorbs more energy than it releases.
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For splitting molecule and baking bread we must add energy to break bonds between atoms.</span>
6 0
3 years ago
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