Describe and explain the trends in reactivity in different groups of the periodic table, using your knowledge of electronic structure. [6 mark]

Which of the following is the best example of a hypothesis? Glass breaks when you throw a rock at it. If three or more pounds of pressure is placed on glass, then it will break. If I push hard on glass it will break.

What is the element CH3CH2CH2CH2CH2OH?

Which hypothesis led to discovery of the proton?

how are ionic bonds formed? a. by the disintegration of one or more electronsb. by the sharing of one or more electrons between two atomsc. by the transfer of one or more electrons from one atom to anotherd.

Potassium + Fluorine

The half-life of radioactive element krypton-91 is 10 seconds. if 16 grams of krypton-91 are initially present, how many grams are present after 10 seconds? after 50 seconds?

Which part of the electromagnetic spectrum has a shorter wavelength than ultraviolet light? television x-rays microwave infrared light

5.0 g of NaCl is dissolved in water, and the solution is brought to a final volume of 150 mL. What is the molarity of this solution?

During which two processes does a substance release energy? 1. | freezing and condensation freezing and melting evaporation and condensation evaporation and melting Submi

Lake michigan holds 1.35 x 10^15 gallons of water