How many moles of mercury are in 23.79 grams of mercury?

What is the charge that results when fluorine becomes an ion?

Would it be easier or more difficult comepared to zinc to recover silver from solution?

What does it mean for a chemical to have a low potential energy?

Which statement explains why increasing the temperature increases the rate of a chemical reaction, while other conditions remain the same? (1) The reacting particles have less energy and collide less frequently.

What is the purpose of a switch in an electrical circuit?

Structural formula and type of reaction for each a) 4-nonene and fluorine b) hexane and oxygen gas c) pentanol and butanoic acid d) propane and hydrogen gas

Which statement is true for a pure compound but NOT true for a pure element?

Which one is uncelluar and which is multicelluar? crab or pond organism

An atom of lithium loses an electron. What is the effect of this event? Group of answer choices The atom of a different element is formed. The atom of lithium acquires no charge. The atom of lithium becomes a positively charged ion.

Water interacts with polar substances like - OH groups but not with non-polar substances like methyl (-CH3) or ethyl groups (-CH2). Using this information, select the molecules that will easily dissolve in water based on polarity not on size.