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nlexa [21]
2 years ago
13

Jdbdjevejeveheveveebdbdhdhdhd

Chemistry
2 answers:
Darina [25.2K]2 years ago
6 0

Jdbdjevejeveheveveebdbdhdhdhd

ahrayia [7]2 years ago
5 0

Answer:

What is this???????????????

Explanation:

hdjsjnsnsnsnsnnsns

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What do you think the biggest risk with genetic engineering is?
katrin2010 [14]

Answer:

Harmful toxins from crops have been found in peoples blood.

GM crops can cause allergic reactions in crops

Its dangerous to mess with nature this way when it should be a natural thing.

Explanation:

I'm in both Biology and Chemistry so I know a lot!

8 0
2 years ago
a sample that has a half life of 45 years take ____ for the count rate to drop from 600 cpm to 150 cpm
Bond [772]

Answer:

90yrs

Explanation:

Half life is the time taken for half of an original radioactive material to decay by half.

For the sample;

    Half - life = 45yrs

  Original amount  = 600cpm

 

                 Start                                  Number of atoms    

                 0yrs                                                600cpm

                                   First half life

                 45yrs                                              300cpm

                                  Second half life

                 90yrs                                               150cpm

5 0
2 years ago
What percentage of the 20.0g sample does sugar (sucrose) represent? Pls include the percentage sign.
Viefleur [7K]

Answer:

42%

Explanation:

i don't know if it's right but...

4 0
3 years ago
We both have 10 neutrons in our nuclei. What are we?
Goryan [66]
Not so sure but i think neon
7 0
3 years ago
Read 2 more answers
Which of the following phase changes only occurs in solids possessing vapor pressures above atmospheric pressure and at ambient
GuDViN [60]

<u>Answer:</u> The phase change process in which solids gets converted to gases is sublimation.

<u>Explanation:</u>

For the given options:

<u>Option a:</u>  Condensation

It is a type of process in which phase change occurs from gaseous state to liquid state at constant temperature.

Gas\rightleftharpoons Liquid

<u>Option b:</u>  Melting

It is a type of process in which phase change occurs from solid state to liquid state at constant temperature.

Solid\rightleftharpoons Liquid

<u>Option c:</u>  Sublimation

It is a type of process in which phase change occurs from solid state to gaseous state without passing through the liquid state at constant temperature.

Solid\rightleftharpoons Gas

<u>Option d:</u>  Deposition

It is a type of process in which phase change occurs from gaseous state to solid state without passing through the liquid state at constant temperature.

Gas\rightleftharpoons Solid

Hence, the phase change process in which solids gets converted to gases is sublimation.

4 0
3 years ago
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