Element X reacts with chlorine to form an ionic compound that has a formula of XCl2. To which group could element X belong? (1) Group 1 (2) Group 2 (3) Group 13 (4) Group 15

Occurs when the moon moves between the Earth and Sun and blocks the light

Why the stability of No + is greater than No?

The scale is best used to measure the strength of small, nearby earthquakes. The magnitude scale is useful for measuring the strength of earthquakes of all sizes and at all distances from a seismograph.

Which term represents the attraction one atom has for the electrons in a bond with another atom? A. electronegativity B. electrical conductivity C. first ionization energy D. mechanical energy

What does the first word in the name of a binary ionic compound represent?

Molybdenum has a molar mass of 95.94g/mol. How many molecules of molybdenum are in 150.0 g of molybdenum

Describe a way that people might be able to solve each envioronmental problem listed below. coal mining can harm habitats and cause pollution.

A sample of methane gas occupies 4.50 gallons at a temperature of 80.0 F. If the pressure is held constant, what will be the volume of the gas at 100. degrees C?

Jack wants to know if it takes longer for warm water to freeze into ice cubes than cold water, so he performed the following experiment. Jack placed 50 mL of water in the refrigerator and allowed it to cool to a temperature of 4°C.

How to calculate average concentration