Quiz. Formula Weight and % Composition
• 1. Give the % of water in Ca(NO3)2 * 3 H20
• 2. In a 520 g sample of Ca(NO3)2 * 3 H20,
how much is Ca(NO3)2?
• 3. Give the % of water in B(OH)* 2 H2O
• 4. In a 80g sample, how much is B(OH)?
• 5. What is the mass of one mole of CaSO4?
• 6. What is the mass of 2.5 moles of CaSO4?
• 7. How many moles is 325g of CaSO4?
• 8. Which of the following compounds has
the highest percentage of Oxygen by mass?
• A. Mg(OH), B. Caso, C. K20 D. Ca(C2H302)2

PLEASE HELP WITH ANY

What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.

Which statement best describes the he properties of iconic compounds ?

When the mercury level in a barometer decreases that atmospheric pressure has