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Valentin [98]
3 years ago
6

PLEASE HELP. ONLY IF YOU KNOW THE ANSWER

Chemistry
1 answer:
Nezavi [6.7K]3 years ago
8 0

Answer:

24. B

25. B

26. B

Explanation:

24. As depicted in the image attached, all living organisms including animals undergo cellular respiration, which is the process whereby sugar molecule is broken down to release energy (ATP). In this process, CARBON DIOXIDE (CO2) is released as a product. The equation is as follows:

C6H12O6 + 6O2 → 6CO2 + 6H2O + energy

On the other hand, plants undergo a unique process called photosynthesis in order to synthesize their food (sugars) and hereby release oxygen gas in the process. Based on the diagram in option B, plants release oxygen using CO2, while animals release CO2 using O2.

25. The structure depicted in the image of this question is an organelle called MITOCHONDRIA. The mitochondrion is the site of cellular respiration (Krebs cycle and ETC) in eukaryotic cells.

26. Photosynthesis is a metabolic process unique to the cells of autotrophic organisms like green plants. It is the process where they synthesize their food in form of organic molecules using SUNLIGHT as a source of energy.

6CO2 + 6H2O + sunlight → C6H12O6 + 6O2

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Mitochondria are tiny organelles inside cells that are involved in releasing energy from food. This process is known as cellular respiration. It is for this reason that mitochondria are often referred to as the powerhouses of the cell.

When the breakdown products from the digestion of food find their way into the cell, a series of chemical reactions occur in the cytoplasm. This allows some of the energy locked up in these products to be released and incorporated into the universal energy supplier in cells known as ATP (adenosine triphosphate).

6 0
4 years ago
Significant digits of 1.0 x 10^-2
son4ous [18]

There's two sig figs: the 1 and the zero. The 10^-2 contributes no sig figs.

8 0
4 years ago
PLS ANSWER FAST THANK UU
andriy [413]
Answer
I think it might be B
Explanation
4 0
3 years ago
What is the percentage of water in the hydrate CoCl2*6H20?
lord [1]
You are given the hydrate CoCl2.6H20. You are required to get the percentage of water in this chemical substance. The first thing to do is to get the molar mass of CoCl2.6H20 and CoCl2. The molar masses are 237.8 grams per mole and 129.8 grams per mole respectively. The formula in getting the percentage of water is  

%=[1-(grams of CoCl2/grams of CoCl2.6H20)]*100.  

Substitute the molar masses of CoCl2.6H20 and CoCl2.  

%=[1-(129.8 grams of CoCl2/237.8 grams of CoCl2.6H20)]*100.
<u>% of water = 45.42%</u>
4 0
3 years ago
Read 2 more answers
What does it mean to say that a wave is cyclic, or periodic, disturbance?
Zina [86]

Answer:

Wave is a disturbance or energy that propagate through medium from one point to other point

So basically it is a flowing energy that flows into the medium and hence medium particles start oscillating about their mean position to and fro.

This motion of medium particles or this to and fro motion is about their mean position and this will always be cyclic or periodic motion

This means the disturbance or energy continuously flow through the medium such that it will change the position of medium particle and this will be cyclic in order

For an example

y(x,t) = Asin(kx - ωt + φ)

So here above equation of wave is a travelling wave in which displacement of medium particle from its mean position is given by "y"

Now we can see that this disturbance depends upon the sine function and it will repeat its same position after every 2 pi time interval as it is cyclic function for this value

Due to this phenomenon of repetition of its same position we can say that it is disturbance of wave is cyclic.

Explanation:

4 0
3 years ago
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