How many grams of Zn could be extracted from 300. g of ZnS

Bromine + calcium iodide  calcium bromide + iodine

Which conditions would result in the worst soil for growing crops? A. moderate rainfall and no extreme temperatures B. a lot of rainfall and low temperatures C. a lot of rainfall and high temperatures D. little rainfall and high temperatures

What is the temperature of 0.750 mol of a gas stored in a 6,850 mL cylinder at 2.21 atm? A: 2.95 K B:5.24 K C:138 K D:246 K

What steps do scientists need to follow to make sure that a scientific investigation is replicable

Identify each element below, and give the symbols of the other elements in its group: (a) [He] 2s²2p² (b) [Ar] 4s²3d³ (c) [Ne] 3s²3p³

For what reasons can a theory be changed

Explain how changes in pressure affect the rate and yield of ammonia produced

What volume of 20 mg/L dye would be required to make 50. mL of. 10 mg/L dye?

A weather balloon at Earth's surface has a volume of 3.9 L at 299 K and 763 mmHg. If the balloon is released and the volume reaches 4.13 L at 720 mmHg, what is the temperature? Answer in units of K.

Molecules that resemble fats but contain phosphate functional groups are called: a. steroids. b. polypeptides. c. phospholipids. d. nucleic acid.