A substance with a different number of neutrons and the same number of protons is called

which of these is a environmental effect of burning fossil fuels? A - temperature increase B-soil erosion C-habitat succesion D-Flooding

What is the wavelength of the radio waves broadcast by an FM radio station with a frequency of 90.7 MHz?

When the atoms: Sr, Rb, Mg, and Na are arranged in order of increasing size, what is the correct order? A. Mg

Calculate the molality of a solution formed by adding 26.0 g NaCl to 74.0 g of water at 10.0 °C. The density of this solution is 1.203 g/mL at 10.0 °C. The molar mass of NaCl = 58.44 g/mol and the molar mass of H2O = 18.02 g/mol.

Rubidium, cesium and francium all have one valence electron. which element has the smallest atomic radius

The flame from my candle gives off black smoke heat and light what type of changes do these indicate

Which one of the following processes results in a decrease in the number of neutrons? corrosion electron capture gamma emission positron emission alpha emission

Calculate the root mean square velocity of F2, Cl2, and Br2 at 304 K.

The total pressure inside a 1.62 cylinder kept at 35°C is 1.15 atm. If the volume of the cylinder drops to 0.74 L and the temperature remains the same, what is the new pressure inside the cylinder?

What is difference between tempering and aging?