A hydrate of CoCl2 with a mass of 6.00g is heated strongly. After cooling, the mass of the anhydrate is 3.27g.

a) How many grams of H2O were lost from the hydrate?

How many atoms and ions does nickel oxide have?

A substance is dissolved in water and produces hydronium ions. This occurs when hydrogen ions move from the substance to associate with water molecules. Which term best matches the behavior of this substance? A. Arrhenius base B. Arrhenius acid C.

Suppose 17. g of hydrochloric cid is mixed with 6.99 g of sodium hydroxide calculate the minimum mass of hydochloric acid taht could be left over by the vhemical reaction

When is the potential energy between two atoms at zero? Question options: A. When the atoms were close to one another B. When the atoms were far from one another C. When the atoms form a bond

4. Indicate the ionic equation, the net-ionic equation, and the spectator ions of the following molecular equation. HCl (aq) + Fe2O3 (s) → FeCl3 (aq) + H2O (1)

Why do airbags fill evenly with gases?

In which of the following reactions will Kc = Kp? In which of the following reactions will Kc = Kp? (A) SO3 (g) + NO (g) ↔ SO2 (g) + NO2 (g) (B) 2 N2 (g) + O2 (g) ↔ 2 N2O (g) (C) 4 NH3 (g) + 3 O2 (g) ↔ 2 N2 (g) + 6 H2O (g) (D) 2 SO2 (g) + O2 (g) ↔ 2

Which tool is most suitable for a chemist to measure the mass of a liquid

What is the equation adheres to the law of conservation of matter

What ironic contrast does Vonnegut include in this scene? George tells his wife to forget sad things, but readers would expect George and Hazel to want to remember their son.