What do you call the element series from atomic number 57-71

Bju chemistry section 5b a. the energy change that occurs when an atomic anion is formed

Using the combined gas law above, identify the variables that would be in the numerator (A) and denominator (B) if you were to rearrange the gas law to solve for final temperature. T subscript 2 equals StartFraction A over B EndFraction.

All elements have a ΔHf of ___kJ/mole at standard temperature and pressure.

The liquids hexane and water are placed in a test tube. The test tube is stoppered, shaken, and placed in a test tube rack.

Which factors must be equal in a reversible chemical reaction at equilibrium? (1) the activation energies of the forward and reverse reactions (2) the rates of the forward and reverse reactions (3) the concentrations of the reactants and products

N which orbitals would the valence electrons for selenium (Se) be placed? s orbital and f orbital s orbital only s orbital and p orbital d orbital only

Anne prepares a solution of copper nitrate with a concentration of 30 g/dm³. What mass of copper nitrate did she add to 100cm³ of water, in grams?

Chemists classify an element an element as a metal based on what physical properties

What is the mass of 222 ml of ice if the density of ice is 0.92 g/ml?

in a water molecule, two atoms of hydrogen and one atom of oxygen share electrons. A _ bond is found in a water molecule