Imagine you are in a laboratory. You are exploring the following reaction: A + B → C When the product C is created, bubbles form. When 10mL of A is added to 10mL of B, the reaction takes twenty seconds. Your teacher gives you three unknown substances (X, Y, and Z), one of which is a catalyst for the reaction. Design an experiment to test substances X, Y, and Z to determine which one is a catalyst for the reaction.

Answers

Answer 1

Answer:

Ok so in this experiment what we want to find is the catalyst for the reaction. Our original reaction is the following. A + B --> C, therefore to find which of the unknown substances (X, Y, and Z) is the catalyst reaction we simply have to do the following:

A + B + X --> C

A + B + Y --> C

A + B + Z --> C

The reaction that produces C much faster than our original reaction A + B --> C will be our catalyst. The reason being that one of the substances will increase the rate of the chemical reaction.

I hope it helps, Regards.

Answer 2

Answer:

Prepare three test tubes containing reactant A. Prepare three test tubes containing reactant B. Add one test tube of reactant B and one unknown to one test tube of reactant A. Repeat for the other two unknowns. Time the reaction until bubbling stops. The unknown that causes the reaction to occur the quickest is the catalyst.

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B. disregard the findings of that study completely, without proof or reason.
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Answers

C. perform experiments to validate or disprove the findings of that study.

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Answers

The answer is b. the mutation remains with the cell and is passed on in division.

Mutations occur on DNA molecules, so the mutation cannot become part of the protein nor the protein can be substituted with a mutation. Once a mutation happens it remains with the cell unless it is detected by cellular mechanism and fixed. If cell does not detect the mutation, it will not be fixed and the mutation will remain forever with the cell. In the normal process of mitosis (cell division), it will be passed down to the next generation of cells.

What effect can fertilizer runoff have on an aquatic ecosystem?a. increased plant growth leading to a decrease in fish populations
b. increased plant growth leading to an increase in fish populations
c. decreased plant growth leading to a decrease in fish populations
d. decreased plant growth leading to an increase in fish populations

Answers

a. increased plant growth leading to a decrease in fish populations. Fertilizer runoff degrades aquatic system by promoting growth of algae, phytoplanktons and other aquatic plants. A phenomenon called 'algal bloom' will take place, increasing oxygen consuming bacteria and lessening the available oxygen for plants and animals in the area.

Answer:

it would be A

Explanation:

Fertilizer runoff degrades aquatic system by promoting growth of algae, phytoplanktons and other aquatic plants. A phenomenon called 'algal bloom' will take place, increasing oxygen consuming bacteria and lessening the available oxygen for plants and animals in the area.

i hope i hellped

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Answers

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