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schepotkina [342]
3 years ago
12

What chemical changes occur during photosynthesis

Chemistry
2 answers:
Mashutka [201]3 years ago
8 0

Answer:

Photosynthesis is the process by which plants, some bacteria and some protistans use the energy from sunlight to produce glucose from carbon dioxide and water. This glucose can be converted into pyruvate which releases adenosine triphosphate (ATP) by cellular respiration. Oxygen is also formed.

Explanation: ok i'm out

Yakvenalex [24]3 years ago
7 0

Answer:

Water and carbon dioxide combine to form glucose and oxygen.

I hope this helped :)

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When molecules slow down, they expand.<br><br> A <br> True<br><br> B <br> False
Jobisdone [24]

False. <--- This is wrong I was thinking of atoms


Molecules do expand when they slowdown...


3 0
3 years ago
Read 2 more answers
What is the empirical formula of a vanadium (i) oxide given that 20.38 grams of vanadium combines with oxygen to form 23.58 gram
oksano4ka [1.4K]

V₂O is the empirical formula of a vanadium (i) oxide given that 20.38 grams of vanadium combines with oxygen to form 23.58 grams of the oxide.

The simplest whole number ratio of the atoms of the elements in a specific compound is shown by the empirical formula for that compound. When the mass of each component of a compound or its % composition by mass is known, an empirical formula may typically be computed.

% composition is equal to (mass of an element minus mass of the compound) / 100%.

Given

Vanadium weighs 20.38 g.

The oxide's mass is 23.58 g.

% Vanadium composition: (20.38 g/23.58 g) 100%

= 86.43%

Oxygen mass equals 23.58 g minus 20.38 g

= 3.2 g

100% of oxygen's composition is (3.2/g/23.58 g)

= 13.57%

Atomic mass and number are related by composition percentage.

Vanadium's atomic weight is 50.94 g/mol.

Atomic weight of V = 86.43 / 50.94

= 1.6967

Oxygen has an atomic mass of 16 g/mol.

O atom count is 13.57/16.

= 0.8481

Now on calculation the ratio of Vanadium to the oxygen is

1.6967/0.8481 = 2/1

Ratio of whole numbers is 2:1

Thus V₂O is the empirical formula .

Learn more about empirical formula here brainly.com/question/13058832

#SPJ4

6 0
1 year ago
One blank is the force required to 1 kilogram of mass at 1 meter per second
const2013 [10]
It's Newton in the blank...
3 0
3 years ago
What mass of H₂O is formed when excess H₂ reacts with 64 g of O₂
taurus [48]

Answer: 72 g of H_2O is formed.

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

\text{Moles of} O_2=\frac{64}{32}=2moles

2H_2+O_2(g)\rightarrow 2H_2O

As  H_2 is the excess reagent, O_2 is the limiting reagent as it limits the formation of product.

According to stoichiometry :

1 mole of O_2 produce=  2 moles of H_2O

Thus 2 moles of O_2 will require=\frac{2}{1}\times 2=4moles  of H_2O

Mass of H_2O=moles\times {\text {Molar mass}}=4moles\times 18g/mol=72g

Thus 72 g of H_2O is formed.

4 0
3 years ago
If 1 mol of a pure triglyceride is hydrolyzed to give 2 mol of RCOOH, 1 mol of R'COOH, and 1 mol of glycerol, which of the follo
Ilia_Sergeevich [38]

Answer:

The correct option is C.

Note the full question and structure of the moleculesis found in the attachment below.

Explanation:

Triglycerides or triacylglycerols are non-polar, hydrophobic lipid molecules composed of three fatty acids linked by ester bonds to a molecule of glycerol.

The fatty acids linked to the glycerol molecule are denoted by R and may be of the same kind or different. when the R group is the same, the R is attached in all the three positions for ester bonding in the glycerol molecule but when they are different are denoted by R, R' and R'' respectively.

During the hydrolysis of triglycerides, the three fatty acids molecules are obtained as well as a glycerol molecule.

From the question, when 1 mole of the triglyceride is hydrolysed, 2 moles of RCOOH, 1 mole of R'COOH and 1 mole of glycerol is obtained. The triglyceride must then be composed of two fatty acids which are the same denoted by R, and a different fatty acid molecule denoted by R'.

The correct option therefore, is C

8 0
3 years ago
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