If element X has 56 protons, how many electrons does it have? electrons

A certain weak acid, ha, has a ka value of 3.6*10-7. part a calculate the percent ionization of ha in a 0.10 m solution. express your answer to two significant figures and include the appropriate units. view available hint (s)

Selenium has six valence electrons. what is the valence of selenium

Manipulate the formula, Q = m • cp • ΔT, to calculate the initial temperature of the metal.

How many total miles of caso4 must be dissolved in water to make 3.5L of 3m solution?

Number of Ni atoms in 3.4 mol of Ni

When light from the sun warms the ground, the transfer of heat energy is called A) conduction. B) power. C) radiation. D) reflection.

What is alkyl hydrogen sulphate

What is the physical state of each of these materials at room temperature? a. gold b. gasoline c. oxygen d. neon e. olive oil f. sulfur g. mercury

What is one unexpected problem associated with cell phone use? A. It decreases the efficacy of your peripheral vision. B. It distracts your hearing from events on the roadway. C. It causes you to misjudge distances.

Construction crews sometimes use this reaction for welding underwater structures: Fe2O3 + 2Al → Al2O3 + 2Fe How many moles of iron (Fe) would be produced if 2.