3. How many moles in 28 grams of CO2?

Ammonia that is used in the home has a pH of 11.9. What type of solution is ammonia?

What's the formula mass for (NH4) 3PO4

Select the message that most accurately fits the passage. Black holes are huge but incredibly hard to locate. Black holes are incredibly powerful cosmic forces. Black holes consume much more than just humans.

According the lewis dot structure shown here, how many valence electrons does chlorine have?

An atom that has a charge because it has gained or lost electrons is A. an ion B. an isotope C. a new element

Which of the following is not a characteristic of solids? a. particles in a solid are completely motionless. b. solids are not compressible. c. solids have a definite shape. d. solids have a definite volume.?

Jose gets up from his seat on the bus to move closer to the front. Just as he begins to walk forward, the bus stops at a light.

A rate is equal to 0.0200 M/s. If [A] = 0.100 M and rate = k[A][B]2, what is the new rate if the concentration of [A] is increased to 0.200 M?

Which of the following is smaller than the atomic radius of beryllium? a. the ionic radius of beryllium b. the atomic radius of lithium c. the ionic radius of carbon d. the atomic radius of magnesium

State one use of alkali metals