How many grams of Calcium are present in 33.0 g of Calcium Fluoride, CaF2?

during which step of the scientific method does a scientist make an educated guess about the outcome of an experiment

1. Imagine you enter your favorite pizza restaurant. Describe what happens at the particle level that allows you to smell the pizza. Use a particle diagram.

To determine which one of the products in a precipitation reaction is the precipitate, which of the following should you follow? A. The Activity Series B. The Law of Conservation of Mass C. Solubility Rules D. The Law of Conservation of Energy

In 1994, the trade deficit was over 150 billion dollars. True or False?

Kingfishers in new guinea are separated into distinct subspecies. which two subspecies would you expect to be most genetically different from one another?

if two objects at different te, peraure are in contact with each other what happens to their temperature

If the bond enthalpy for a C-C bond is 348 kJ, what will happen when the C-C bond is formed?

How do you find moles

What volume of 0.500 M AgNO3 are needed to react with 100. mL of 0.400 M K2CrO4? 2 AgNO3 (aq) + K2CrO4 (aq) ➔ Ag2CrO4 (s) + 2 KNO3 (aq)

Nonpolar substances do not dissolve in polar solvents like water. If you're conducting an investigation to test the solubility of different substances, which on these substances do you expect to be insoluble in water? A. ammonia (NH3) B.