What is conjugate solution

Give the ion symbol for the the ion that has 15 protons and 18 electrons

How is the molar mass of an element determined?

What's the atoms in the formula ca (H2PO4) 3

Solid white phosphorus melts and then vaporizes at high temperature. gaseous white phosphorus effuses at a rate that is 0.404 times that of neon in the same apparatus under the same conditions.

Que órgano del sistema digestivo almacena bilis

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?