If 0.492 moles of a substance weighs 56.2 g, what is the molar mass of the substance in units of g/mol?

Oxygen's atomic number is 8. This means that an oxygen atom has a. eight neutrons in its nucleus. c. eight protons in its nucleus. b. a total of eight protons and neutrons. d. a total of eight neutrons and electrons.

How many moles of atoms are contained in 15.7 g of Bromine

Which factor distinguishes a metallic bond from an ionic?

The electrons stripped from glucose in cellular respiration end up in which compound?

Which element in each pair has a greater first ionization energy? a) lithium, boron b) magnesium, strontium c) cesium, aluminum

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