During the lunch rush, Ryan made ten sandwiches with two slices of rye bread and one slice of turkey. Which formula represents the sandwiches he made?

12RT

10R2T

12RT2

10RT2

What type of molecule polarity exists in NH3, H2O, and HF?

Metals are malleable and ductile. What do these properties indicate about the bonds that hold metal atoms together?

The charge of the stable ion of S and Li?

Define energy conservation.

How many grams are in 2.4 moles of sulfur?

What is the unit used to measure the atomic mass?

Which metal in Period 5 is very reactive and has two valence electrons in each atom? rubidium (RD) strontium (SI) zirconium (Z1) silver (Ag)

Sara and Sam went for a two-hour drive. According to the graph, between. 75 hours and 1.25 hours into their trip, they A) slowed down to a speed of 15km/hour. B) travelled at a constant rate of 30km/hour.

Define the following terms: acids, bases, oxoacids, oxoanions, and hydrates.

Calculate the concentration of a solution that has 6.7 moles in a volume of 0.6 liters.