What mass of nh3 can be made from 35.0 grams of n2?
n2 + 3h2 → 2nh3
a. 42.5 grams
b. 70.0 grams
c. 17.5 grams

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

Hormones are chemical molecules produced by endocrine glands. one such endocrine gland is the thyroid gland, which synthesizes the thyroid hormone, which in turn affects the heart muscles. which two statements describe the probable reason for the function of the hormone? the cells in the heart have specific receptors that allow for the intake of hormones. the heart and the endocrine glands have the exact same types of cells. all cells make the same types of hormones. thyroid hormones show their effect on the heart by means of specialized cells. thyroid cells and cardiac cells have different dna.

In meiosis ii during anaphase ii which structures separated homologous chromosomes or sister chromatids