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sammy [17]
3 years ago
9

Why does it take so long time to develop a new variety of tomato

Chemistry
1 answer:
Tcecarenko [31]3 years ago
6 0
It takes a while because the cells need to get used to each other and if they do they need to grow.
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Tornadoes can negatively affect an ecosystem when
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Answer:

b, their strong winds uproot many of the important plants

Explanation:

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2 years ago
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How many moles of ammonia can be formed from 4.0 mol H2
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Answer: 1. 2.7 moles  of ammonia are formed

2. 12.0 moles  of hydrogen are required

3. 2.0 moles of nitrogen are required

Explanation:

The balanced chemical equation is:

N_2+3H_2\rightarrow 2NH_3

According to stoichiometry:

3 moles of hydrogen form = 2 moles of ammonia

Thus 4.0 moles of hydrogen form =\frac{2}{3}\times 4.0=2.7moles of ammonia

According to stoichiometry:

2 moles of ammonia are formed by = 3 moles of hydrogen

Thus 8.0 moles of ammonia are formed by  =\frac{3}{2}\times 8.0=12.0moles of hydrogen

According to stoichiometry:

3 moles of hydrogen react with = 1 mole of nitrogen

Thus 6.0 moles of hydrogen react with =\frac{1}{3}\times 6.0=2.0moles of nitrogen

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2 years ago
What are the types of chemical equations ?
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Answer:

combination

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single displacement

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3 years ago
As an ice cube melts on a table top it transforms from a solid bank with a defined shape to a puddle with a much greater ability
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In a solid state, the molecules have the least amount of energy. They just stick close together and vibrate in place. As the molecules gain more energy, they are able to move around more freely. In the liquid state, the molecules have enough energy to sort of tumble over each other.
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What is energy
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it is s because enegy allows us to walk

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