Look at the chemical equation:

3H2 + N2 → 2NH3

How many atoms of hydrogen (H) are present on both sides of the equation? (5 points)

Group of answer choices

2

3

5

6

Which group of algae is characterized by unicellular organisms and includes some members that would be better classified as zooflagellates? euglenophytes red algae sporozoans green algae

Acommon kind of mechanical weathering is called

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one