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Natali5045456 [20]
2 years ago
11

Help me Plz, I am really confused

Chemistry
1 answer:
avanturin [10]2 years ago
5 0
O is a blood donor
AB receiver
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Calculate mole fraction of benzene (70 g) having 30 gram of mass of carbon tetrahedral​
Fynjy0 [20]

Moles of benzene

  • 70/90=7/9=0.8mol

moles of CCl_4

  • 30/154
  • 0.2mol

Now

\\ \rm\Rrightarrow \chi_{C_6H_6}

\\ \rm\Rrightarrow \dfrac{\chi_{C_6H_6}}{\chi_{sol^n}}

\\ \rm\Rrightarrow \dfrac{0.8}{0.8+0.2}

\\ \rm\Rrightarrow \dfrac{0.8}{1}

\\ \rm\Rrightarrow 0.8

4 0
2 years ago
Help me please!!!!!!!!!!!!!
Mariana [72]

Answer:

D.

Explanation:

Hope this helps

4 0
3 years ago
How does a scientific theory differ from a scientific law?
Bas_tet [7]

1.A law is an observation; a theory is the explanation of that observation.

2.A theory requires experimentation under various conditions. A law has no such requirements.
3.A theory may become obsolete with time. This is not the case with a law.
4.A theory can be replaced by another better theory; however, this never happens with a law.
5.A theory may be strong or weak according to the amount of evidence available. A law is a universally observable fact.


Hope this helps:)


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7 0
3 years ago
A nuturing parent
Phantasy [73]

Answer:

Answer choice C

Explanation:

Neglecting either your own or your child's needs is always a bad idea and is bad for the child, meaning that A is not the correct answer. You should also not expect more of and push your child above their natural ability level, so B is also not correct. However, you should try to discipline and teach your child without hurting them physically or mentally. Therefore, C is the correct answer. Hope this helps!

3 0
3 years ago
Read 2 more answers
Answer quick pls its timed
Gekata [30.6K]

Answer:

Its job is to store light

Explanation:

Green plants have the ability to make their own food. They do this through a process called photosynthesis, which uses a green pigment called chlorophyll. ... Chlorophyll's job in a plant is to absorb light—usually sunlight. The energy absorbed from light is transferred to two kinds of energy-storing molecules.

4 0
3 years ago
Read 2 more answers
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