The number of electrons in an oxide ion O^2 - is?

A colloid is A solid particles dispersed in water B a suspension where the particles settle out C gas D amalgam

What are the components of the formula for finding force?

The two types of scales that are printed on the meter face of an analog VOM are A. single and double scales. B. polarized and non-polarized scales. C. positive and negative scales. D. linear and non-linear scales.

Which type of battery will last longer - Duracell or energizer

The order of elements in the periodic table is based on a. the number of protons in the nucleus. c. the number of neutrons in the nucleus. b. the electric charge of the nucleus. d. atomic mass.

All the isotopes of a given atom have (1) the same mass number and the same atomic number (2) the same mass number but different atomic numbers (3) different mass numbers but the same atomic number (4) different mass numbers and different atomic

A 2.40 L volume of air has a pressure of 101.7 kPa. If initially the pressure of the air was 101.01 kPa, what was the initial volume of air? Assume all other properties remain constant.

Water has a large K, value. True False

What mass of CO2 will sublimate given 500 kJ of energy at room temperature? (ΔHsub=26.1kJmole)

A sample of helium, at 20 °c, occupies a volume of 3.17 l at a pressure of 6.21 atm. what volume does this helium sample occupy if the pressure is reduced to 5.57 atm while maintaining the temperature at 20 °c?