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nika2105 [10]
3 years ago
6

In order for plants to go through photosynthesis, they must use

Chemistry
1 answer:
Alex_Xolod [135]3 years ago
8 0
In order for plants to go through photosynthesis, they must use <span>B. visible light.</span>
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What’s number 1, 2, 3 <br> Major grade 6th grade
Maslowich

Answer:

1 is B

2 is A

3 is A

Explanation:

Hope you pass

8 0
2 years ago
Observation and assessment are most effective when
Artist 52 [7]
I think the answer is A. Hope that helped :)
6 0
3 years ago
The naturally occurring radioactive decay series that begins with 23592U stops with formation of the stable 20782Pb nucleus. The
dsp73

Answer: There are 7 alpha-particle emissions and 4 beta-particle emissions involved in this series

Explanation:

Alpha Decay: In this process, a heavier nuclei decays into lighter nuclei by releasing alpha particle. The mass number is reduced by 4 units and atomic number is reduced by 2 units.

Beta Decay : It is a type of decay process, in which a proton gets converted to neutron and an electron. This is also known as -decay. In this the mass number remains same but the atomic number is increased by 1.

In radioactive decay the sum of atomic number or mass number of reactants must be equal to the sum of atomic number or mass number of products .

_{92}^{235}\textrm{U}\rightarrow _{82}^{207}\textrm{Pb}+X_2^4\alpha+Y_{-1}^0e

Thus for mass number : 235 = 207+4X

4X= 28

X = 7

Thus for atomic number : 92 = 82+2X-Y

2X- Y = 10

2(7) - Y= 10

14-10 = Y

Y= 4

_{92}^{235}\textrm{U}\rightarrow _{82}^{207}\textrm{Pb}+7_2^4\alpha+4_{-1}^0e

Thus there are 7 alpha-particle emissions and 4 beta-particle emissions involved in this series

3 0
3 years ago
True or false?<br><br> When sodium and chlorine combine and bond, a molecule is formed.
CaHeK987 [17]

When Sodium and Chlorine come together they transfer an electron.

- Source: google


Hopefully this was clear and you understood!

3 0
3 years ago
Sex-linked disorders occur more frequently in males than females because males have two X chromosomes and females have two Y chr
Vilka [71]
This is false because males have 1 X and 1 Y chromosome. It's females who have 2 X chromosomes. So, it's false.
5 0
3 years ago
Read 2 more answers
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