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malfutka [58]
3 years ago
14

What green substance in the plant cell must be present before the process can take place

Chemistry
2 answers:
andrew11 [14]3 years ago
6 0
I think chlorophyll but i am not shure

Ivanshal [37]3 years ago
3 0
Chlorophyll this is the right answer
You might be interested in
.
lesya692 [45]

Answer:

Student 3

Explanation:

This question lets us know something about how the density of a gas varies with temperature.

When a gas is heated, its molecules spread out and expand. When this happens, the volume of the gas increases. Remember that density is defined as mass/volume. Thus as the volume increases, the density of the gas decreases.

Therefore, the carbon dioxide rose up because the heat expanded the gas and it became less dense.

7 0
3 years ago
An empty graduated cylinder weighs 55.26 g. When filled with 50.0 mL of an unknown liquid, it weighs
marysya [2.9K]

Answer:

.743 g/mL

Explanation:

Hopefully this helps :)

5 0
3 years ago
Answer the following:1. A ________ is a set of elements that run from left to right. 2. Every element in the first period has __
Mrac [35]

Answer: 1. Periods 2. One, electrons 3. Two, electrons 3. Elements 4. Electrons, outermost 5. One, two 6. Seven, six

Explanation: they needed one and two electrons to complete their outer shell, so the have same valence but negative.

8 0
3 years ago
Read 2 more answers
Suppose you have an Avogadro's number of nitrogen atoms. How many grams does this represent? Enter your answer to one decimal pl
shusha [124]

Answer:

2.3 x 10-23 g.

Explanation:

The mass of a single atom is the mass number, 14, is the mass in grams of one mole of carbon.

One mole of Nitrogen atom is 6.022 x 1023 atoms (Avogadro's number). This can then used to convert a nitogen atom to grams by the ratio:

mass of 1 atom / 1 atom = mass of a mole of atoms / 6.022 x 10^23 atoms.

mass of 1 atom = mass of a mole of atoms / 6.022 x 1023

mass of 1 N atom = 14 / 6.022 x 10^23 N atoms

mass of 1 N atom = 2.325 x 10^-23 g

The mass of a single Nitrogen atom is 2.325 x 10-23 g.

3 0
3 years ago
How many moles of each element are in 1 mole of ammonium nitrate?
liubo4ka [24]

Answer:

<h2><u>Of moles of NH4NO3 = 16/80 i.e. 0.2 moles of Ammonium Nitrate. 1 molecule of NH4NO3 contains 1 atom of N. Hence, 1 mole of NH4NO3 would contain 1 mole of Nitrogen atoms and therefore 0.2 moles of NH4NO3 should contain 0.2 moles of Nitrogen atoms</u>.</h2>

Explanation:

3 0
3 years ago
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