How explain two ways to decrease the energy of a wave

Which pair of compounds represents one Arrhenius acid and one Arrhenius base? A) CH3OH and NaOH B) CH3OH and HCl C) HNO3 and NaOH D) HNO3 and HCl

A single-displacement reaction is always a redox reaction, but a redox reaction isn't always a single-displacement reaction. True or False

What volume of 1.0 M sodium phosphate, to the nearest tenth of a liter, must be used to make 4.0 L of 0.80 M sodium phosphate?

If the first energy level can hold 2 electrons, the second holds 8, and the third can hold 8, what if the atomic number is bigger than 18? Where do the other electrons go?

At a temperature of 15 degrees C, a quantity of oxygen has a volume of 250 ml. If it's temperature is raised to 45 degrees C, what will it's volume be?

How can you use Hess's law to determine a reaction's enthalpy?

7. How much energy in KJ is released when 15.0 g of steam at 100.0 degrees Celsius is condensed and then frozen to ice at 0.0 degrees Celsius?

Consider the reaction: 8H2S (g) + 4O2 (g) →8H2O (g) + S8 (g). Δ[H2S]/Δt = - 0.033M/s. Find Δ[O2]/Δt. Δ[H2O]/Δt. Δ[S8]/Δt. Find the rate of the reaction.

At room temperature and pressure what is the volume of one mole of oxygen?

Ibuprofen, a common pain remedy, has an empirical formula of C7H9O and a molar mass of approximately 218.078 grams per mole. What is the molecular formula of ibuprofen?