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Y_Kistochka [10]
3 years ago
11

Form a hypothesis: how do you think photosynthesis is related to cellular respiration

Chemistry
1 answer:
____ [38]3 years ago
5 0

Answer: Photosynthesis and cellular respiration are related because the reactants for photosynthesis is the products (plus ATP) is cellular respiration. Also the products for cellular respiration is the reactants for cellular respiration.

Explanation:

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What pressure is required to achieve a co2 concentration of 7.90×10−2 m at 20∘c?
Savatey [412]

Answer:-  1.90 atm

Solution:- It is based on combined gas law equation, PV = nRT

In this equation, P is pressure, V is volume, n is moles of gas, R is universal gas constant and T is kelvin temperature.

If we divide both sides by V then:

P=\frac{nRT}{V}

We know that, molarity is moles per liter. So, in the above equation we could replace \frac{n}{V} by molarity, M of the gas. The equation becomes:

P = MRT

T = 20 + 273 = 293 K

M = 7.9*10^-^2

Let's plug in the values in the equation:

P = (7.9*10^-^2)(0.0821)(293)

P = 1.90 atm

So, the pressure of the gas is 1.90 atm.

7 0
3 years ago
Ocean tides observed at coastal locations each day are primarily caused by what?
Andru [333]
Ocean tides are caused by mostly wind but can also be caused by earthquakes
4 0
3 years ago
Read 2 more answers
Imagine you are handed a mineral sample. It breaks with a conchoidal fracture, but displays no cleavage. It does not react with
Shalnov [3]

Answer:

Quartz.

Explanation:

According to the characteristics given in the question the mineral must surely be Quartz.

Quartz does not react with hydrochloric acid.

Its is pink in color and has anon metallic luster. It has a specific gravity of 2.65. Quartz is continuous framework of SiO4 , with each oxygen being shared with two tetrahedra, giving an overall chemical formula of SiO2.

7 0
3 years ago
What is the percent by mass of 54.7g of calcium chloride dissolved in 500g of water?
Advocard [28]
% by mass = (mass solute/mass solution)*100%
mass  of the solute = 54.7 g
mass of the solution = mass solute + mass solvent=54.7+500=554.7 g
% by mass = (54.7/554.7)*100%≈0.0986*100% = 9.86%

3 0
3 years ago
What mass of oxygen would form from 2.30 moles of water?
Serggg [28]

Answer : The mass of oxygen will be, 36.8 grams

Solution : Given,

Moles of water = 2.30 moles

Molar mass of O_2 = 32 g/mole

First we have to calculate the moles of oxygen.

The balanced chemical reaction will be,

2H_2O\rightarrow 2H_2+O_2

From the balanced reaction we conclude that

2 moles of water decomposes to give 1 mole of O_2

2.30 moles of water decomposes to give \frac{2.3}{2}=1.15 moles of O_2

Now we have to calculate the mass of oxygen.

\text{Mass of }O_2=\text{Moles of }O_2\times \text{Molar mass of }O_2

\text{Mass of }O_2=(1.15moles)\times (32g/mole)=36.8g

Therefore, the mass of oxygen will be, 36.8 grams

8 0
3 years ago
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