When aluminum oxide reacts with hydrofluoric acid, how many moles of aluminum fluoride are produced when 150 grams of aluminum oxide are used?

What cell has a genetic material that is contained in a nucleus

Which of the following measurements is expressed in three significant figures? A. 420 mL of hydrochloric acid B. 0.003 g of vitamin D C. 622.00 kg of sulfur D. 0.201 L of nitrogen gas

What is the force of attraction between the particles in a salt crystal

Why do scientists use frequencies in the VHF range? a. It is the same frequency of many animal calls b. It can travel long distances c. It doesn't hurt animals d. Most animals don't make sounds in that range

What happens acoss the period of the periodic table

Differentiate between various qualities of reagents including ordinary, analar and industrial quality reagent

Do you know which plants are healthiest for bees?

Given the reaction Cu + 2AgNO3 - > Cu (NO3) 2 + 2Ag, how many steps will it take to convert 64.8 grams of copper to moles of silver? Also, how many moles of silver will be produced?

What is the molarity of a 2.0 l sodium hydroxide solution containing 1.0 grams of solute?

Whats the si unit chemist use to measure the amount of an element substance?