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3 years ago

9

What is hair made out of and how does it grow ? lol yah ik its kind of a stupid question

1 answer:

Rasek [7]3 years ago

3 0

Hair is dead skin cells that pile on top of each other to "grow".

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HELP ME PLS I NEED HELP I HAVE 5MINS

Leviafan [203]

Answer:

K

Explanation:

Since the blood moves from the body to the right atrium to the right ventricle

3 0

2 years ago

Where does nearly all life get its energy from? *<br> Oxygen<br> A.Sun<br> B.Produce<br> C.Soil

meriva

The sun hope this helps

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2 years ago

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What type of reaction is shown in this thermochemical equation? A + B + heat → C + D

hodyreva [135]

The reaction, as what is depicted in the thermonuclear equation is one of the best example of an endothermic reaction. In addition, the endothermic process revolves around the idea that the system can also absorb the energy from its surroundings, in contrast to the idea of releasing its energy to its environment.

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2 years ago

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What will be the boiling point of a solution of 8 moles of sodium dichromate (Na2Cr2O7) dissolved in 8 kg of water? Use the foll

nexus9112 [7]

Answer:

1. 374.69 K

Explanation:

Hello,

In this case, pure water's boiling point is 373.15 K, thus by considering the boiling point increase equation:

$\Delta T=imKf$

Whereas i=2 since two ionic species are formed,actually, the experimental value is 2.42 so better work with it, thus:

$\Delta T=2.42*(\frac{8}{8}m)*0.512 Km^{-1}=1.239K$

Thus, the required boiling point is:

$T_b=373.15K+1.239K\\T_b=374.69K$

Regards.

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3 years ago

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Write the complete balanced equation for the following reaction: c7h14 o2 yields co2 h2o

Svetach [21]

C7H14 + 10.5 O2 -> 7 CO2 + 7 H2O

Or, if whole numbers must be used:

2 C7H14 + 21 O2 -> 14 CO2 + 7 H2O

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3 years ago

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