Astudent conducts an experiment to determine how the amount of water given to a plant affects its growth. what is the independent variable for this experiment? a. the amount of water b. the height of the plant c. the amount of sunlight d. the amount of soil select the best answer from the choices provided a b c d

a. the amount of water is the answer because the idependet variable is the variable your changing and in this expermient there are changing the amount of water in the plants

amount of water

Explanation:

An independent variable can be a variable useful in an experiment which can be manipulated by the experimenter or researcher so as to observe the result of such change on the dependent variable.

In the given experiment, the amount of water is the independent variable. The  affect of the amount of water can be observed on the growth of plants which is the dependent variable.    

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms