Using standard enthalpy of formation values, determine the enthalpy change that occurs when 1 mol of methane (CH4) undergoes a combustion reaction.

An atom that has a charge due to loosing or gaining electrons is called?

Boiling occurs when a liquid changes to a gas below and at the suface is that correct

Why do some atoms gain electrons while others lose them in chemical reactions?

Write the name and symbol of the si units for mass length volume and temperature

What is the molarity of a 4 L solution in which 3.70 moles of sodium acetate are dissolved?

How to test whether a vegetable or fruit can conduct electricity?

Solids like silver chloride (AgCl) dissolve in water according to the temperature and solubility (g/L or mg/L). If the solubility of AgCl at 25 °C is 2.5 g AgCl (s) in 1.3 x 103 L of water, what mass (in milligrams) of AgCl will dissolve in 1.

Magnesium hydroxide, the active ingredient in milk of magnesia, neutralizes stomach acid, primarily hcl, according to the reaction: mg (oh) 2 (aq) + 2 hcl (aq) → h2o (l) + mgcl2 (aq) how much hcl in grams can be neutralized by 5.

When 17.0 grams of an unknown metal is cooled from 35.0°c to 10.0°c it releases 862 joules of energy. what is the specific heat capacity of the unknown metal?

What action could slow a chemical reaction rate? a. lowering the pressure b. raising the temperature c. increasing the concentration d. adding more of a substance to a mixture