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dusya [7]
4 years ago
6

True or False: Electrons in each lower level are filled before electrons fill

Chemistry
1 answer:
ale4655 [162]4 years ago
5 0

the answer is 1....true

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How many grams of hydrogen are necessary to react with 2.85 mol CO
Lynna [10]

CO+2 H2=CH3OH

2.85 mol Co x (2mol H2/1 mol Co)=5.70 mol just concert to grams

5.70 mol H2 x (2 g H2/1 mol H2) =11.40 grams of H2

6 0
3 years ago
When two hydrogen nuclei combine to form one helium nucleus, nuclear fusion has taken place.. . True or False
Aleks [24]
True.

Nuclear Fusion is a reaction process that involves combination of smaller nuclei to form larger one.


8 0
3 years ago
Read 2 more answers
Jane described two substances which participate in photosynthesis.
Anika [276]

Answer: -

Substance A is carbon dioxide and Substance B is oxygen.

Explanation: -

Photosynthesis reaction involves the process of conversion of light energy of the sun into chemical energy by the green chlorophyll found in plants leaves.

The chemical equation for the process is

6 CO₂ +6 H₂O → C₆H₁₂O₆ + 6O₂

As we can see Carbon dioxide CO₂ reacts with water H₂O to form glucose. Oxygen is the gaseous product formed.

Thus Substance A is carbon dioxide and Substance B is oxygen.

8 0
4 years ago
I need help with science question. Picture attached
asambeis [7]

Answer:

C

cell wall only in plants

chloroplast only in plants

enlarged vacuoles only in plants

cell membrane in both

hope this helps :)

Explanation:

6 0
3 years ago
Read 2 more answers
For each compound below, identify any polar covalent bonds and indicate the direction of the dipole moment using the symbols 84
Lostsunrise [7]

Answer:

H+  ----- Br-

H+  ----- Cl-

O₋₋ -----2H++

CH3 ----- O-   ------ H+

Explanation:

Dipole moment occurs when there is bonding between a very strong electronegative element and hydrogen atom.

Electronegative elements are the element which attract electrons towards themselves, (that is they have strong affinity for electrons).

Generally, group 7 elements (Fluorine, Chlorine, Bromine, Iodine) of the periodic table are highly electronegative

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3 0
3 years ago
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