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Ne4ueva [31]
2 years ago
7

Question 3

Chemistry
2 answers:
meriva2 years ago
8 0

Answer:

We are dependent on plants and plants need CO2 from enviromen

Explanation:

Liono4ka [1.6K]2 years ago
3 0

Answer:

These are necessary for breathing, drinking etc.

Even they are basic components of our body such as present in DNA etc.

#$#THANK YOU #$#

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A student pours 44.3 g of water at 10°C into a beaker containing 115.2 g of water at 10°C. What are the final mass, temperatur
Agata [3.3K]

Answer:

Final mass = 159.5 g

Final temperature = 10 C

Final density = 1.00 g/ml

Explanation:

<u>Given:</u>

Beaker 1:

Mass of water = 44.3 g

Temperature = 10 C

Beaker 2:

Mass of water = 115.2 g

Temperature = 10 C

Density of water at 10C = 1.00 g/ml

<u>To determine:</u>

The final mass, temperature and density of water

<u>Calculation:</u>

Final\ mass\ of \ water = Beaker\ 1 + Beaker\ 2 = 44.3 + 115.2 = 159.5 g

Since there is no change in temperature, the final temperature will be 10 C

Density of a substance is an intensive property i.e. it is independent of the mass. Hence the density of water will remain constant i.e. 1.00 g/ml

3 0
3 years ago
In what part of the atom do alpha or beta particles originate?
PolarNik [594]

Answer:

Nucleus

Explanation:

they originate in the nucleus

7 0
3 years ago
CHEGG A chemist requires a large amount of 1-bromo-4-phenyl-2-butene as starting material for a synthesis and decides to carry o
mylen [45]

Answer: hello attached below is the complete question

answer :

attached below

Explanation:

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2 years ago
Which compound 2-bromo-2-methylpropane or 2-chloro-2-methylpropane?
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The 2-bromo-1-chloro-2-methylpropane molecule contains a total of 14 atom(s). There are 4 Carbon atom(s), 8 Hydrogen atom(s), 1 Chlorine atom(s) and 1 Bromine atom(s). A chemical formula of 2-bromo-1-chloro-2-methylpropane can therefore be written as C4H8BrCl. Is it also commonly called as Propane.
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