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viva [34]
4 years ago
13

Select the correct answer.

Chemistry
1 answer:
mariarad [96]4 years ago
3 0

Answer:

A.  How does changing the amount of water affect the growth of corn?

Explanation:

To test this question, all you have to do is buy corn, and keep them all in the same area with the same amount of sunlight, temperature, etc, and only change the amount of water each plant gets.

~

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You have a glass of liquid and combine it with a mysterious solid and notice that over time the color changes. this questions ha
Juliette [100K]

1. This can be due to the dissolving of the solid in liquid and form a solution.

Dissolving is a physical property because dissolving doesn't form new substances and the chemical composition of the solid is not changed.

The color building up over the time can be due to the rate of dissolving of the solid and amount of particles have been dissolved.

Example:

  • Dissolving of CuSO₄ solid in water.
  • This develops a blue color.

2. This can be due to the chemical reaction between the solid and liquid.

Chemical reaction is a chemical property because from reacting substances new substances can be formed which the chemical formula is different from initial substances.

The color building up over the time can be due to the rate of the reaction and the amount of reactants.

Example:

  • The reaction between calcium metal with water.
  • The color of Ca(OH)₂ is white color.
  • Reaction is

       Ca(s) + 2H₂O(l) → Ca(OH)₂(aq) + H₂(g)

5 0
3 years ago
....................​
Veronika [31]

Answer:

A homogeneous mixture has the same uniform appearance and composition throughout. Many homogeneous mixtures are commonly referred to as solutions. A heterogeneous mixture consists of visibly different substances or phases. The three phases or states of matter are gas, liquid, and solid.

3 0
3 years ago
Chlorophenols impart unpleasant taste and odor to drinking water at concentrations as low as 5 mg/m3. They are formed when the c
trapecia [35]

Answer:

See explaination

Explanation:

Chlorine’s disinfection properties have helped improve the lives of billions of people around the world. Chlorine also is an essential chemical building block, used to make many products that contribute to public health and safety, advanced technology, nutrition, security and transportation.

Please kindly check attachment for the step by step solution of the given problem.

4 0
3 years ago
In this model of a molecule of ammonia, nh3, how many covalent bonds are represented? ammonia
motikmotik
I don't know but I would pick b.2.covalent bonds
6 0
3 years ago
Adding energy to a solid bar of gold may result in which of the following outcomes
____ [38]
An increase in motion and less attraction between particles

4 0
3 years ago
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