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oee [108]
3 years ago
12

1. When there is light, photosynthesis can

Chemistry
2 answers:
Bas_tet [7]3 years ago
8 0

Answer:

A

Explanation:

ASHA 777 [7]3 years ago
6 0

Answer:

A. occur, in the chloroplast.

Explanation:

Photosynthesis occur in chloroplasts, with the help of sunlight. Where mitochondria help in respiration

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BRAINLIEST ANSWER! An Earth-like planet is 500 light years away. Why is this an obstacle for a manned space mission?
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Difference between ntp and stp​
Phantasy [73]

Answer:

STP stands for Standard Temperature and Pressure. NTP stands for Normal Temperature and Pressure.

Explanation:

STP is set by the IUPAC as 0°C and 100 kPa or 1 bar.

NTP is set at 101.325 kPa but uses 20°C as the temperature

8 0
3 years ago
Two samples of gold that have different temperatures are placed in contact with one another. Heat will flow spontaneously from a
galina1969 [7]
It is 50. This is because heat goes from higher temperatures to lower and nothing else in the options is lower.
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3 years ago
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Initially, a particular sample has a total mass of 200 grams and contains 128 x 1010 radioactive nuclei. These radioactive nucle
lubasha [3.4K]

Explanation:

Formula to calculate how many particles are left is as follows.

              N = N_{0} (\frac{1}{2})^{l}

where,     N_{0} = number of initial particles

                              l = number of half lives

As it is given that number of initial particles is 128 \times 10^{10} and number of half-lives is 3.

Hence, putting the given values into the above equation as follows.

               N = N_{0} (\frac{1}{2})^{l}

                    = 128 \times 10^{10}(\frac{1}{2})^{3}

                    = 16 \times 10^{10}

or,                    1.6 \times 10^{11}

Thus, we can conclude that 1.6 \times 10^{11} particles of radioactive nuclei remain in the given sample.

In five hours we've gone through 5 half lives so the answer is:

particles

8 0
3 years ago
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