The energy required to remove two valency electrons of a metallic atom is called? a. second ionization energy b. ionization energy. c. electron affinity. d. activation energy

The branch of chemistry that is the study of the composition, properties, and reactions of matter is called

What is the mole ratio of PbO2 to water? PbO, H, 0 = 1:0

The physical state of the substances of wood

Tamara sells her ice cream in 43 ounce cartons. One Friday she sold 11 cartons filled with 371 ounces of ice cream. How many large and small cartons did she sell?

The terms motif (fold) and domain describe levels of protein organization more complicated than primary or secondary structure. Differentiate between motifs and domains by moving each phrase to the appropriate bin.

Why does metal need to be extracted from an ore before it can be used?

If heat is released, how does the solution feel?

What is the mass number of an ion with 107 electrons, 157 neutrons, and a 1 charge?

Which of the following is true about compounds

According to the chart, which substance has the lowest OH' concentration? A) urine lemon juice tomato juice D) black coffee