How many atoms are there in 5.7 mol of hafnium?

Which option is the most accurate description of speed? A: The dog ran around the block in eight minutes B: The plucked guitar string vibrated at least 50 times C:The goalie quickly moves left to block the goal D: The hare finish the race before the

One parent has the sickle cell disease gene, and the other parent does not. Which best describes the child's chances of getting sickle cell disease?

Mining companies extract iron from iron ore according to the following balanced equation: Fe2O3 (s) + 3CO (g) →2Fe (s) + 3CO2 (g) In a reaction mixture containing 175 g Fe2O3 and 73.0 g CO, CO is the limiting reactant.

Measuring the level of lead in drinking water is the job of?

How can you tell if a compound will form an ionic bond?

Which atomic particle dtermines the chemical behaviour of an atom?

If you could travel to the Sun and back, about how far would you travel? A. 1 AU B. 2 AU C. 5 AU D. 10 AU

A scientist is conducting a descriptive experiment where she is monitoring sea level along coastal towns in California. What is a major benefit of this experiment? The relationship shows cause and effect. It is repeatable.

If the sum of the mass of the reactants is 12.5 what would be the sum of the products be? And explain how you know this

Name 5 types of alloys