2) Calculate the mass (g) of the following substances:

b) 0.119 mole MgCl2

Explain how the energy from the sun transfers to you when you eat a cheeseburger.

How many total atoms are there in the formula Co2 (CrO4) 3?

Why is it impossible to know the exact speed and position of an electron

What are the factors that affect the dissolving of a solid in a liquid?

Complete the paragraph to describe the characteristics of a borane molecule (BH3). The Lewis structure and table of electronegativities are given. The bond polarities in BH3 are, the molecular shape is, and the molecule is.

3. A compound was analyzed and found to contain 9.8 g of nitrogen, 0.70 g of hydrogen, and 33.6 g of oxygen. What is the empirical formula of the compound?

A 126-gram sample of titanium metal is heated from 20.0°C to 45.4°C while absorbing 1.68 kJ of heat. What is the specific heat of titanium?

What pressure (in atm) will a sample of o2 gas occupy at 100.0 ml, if o2 has a volume of 25.00 ml at 2.0 atm?

What happens when francium and nitrogen are mixed

Which type of chemical reaction occurs in 2KClO3 Right arrow. 2KCl + 3O2