Which of the following have the most similar properties?

A. Sodium (Na) and Magnesium (Mg)

B. Carbon (C) and Silicon (Si)

C. Argon (Ar) and Chlorine (Cl)

D. Potassium (K) and Calcium (Ca)

A cell spends most of its life in this stage of the cell cycle, where it grows and replicates its DNA interphase. mitosis. cytokinesis.

What is an element? A. a material that is shiny and usually hard and strong B. a substance made of just one kind of atom that cannot be broken down into something simpler C. a substance made up of hydrogen and one other kind of atom D.

At sea level, water boils at 100 degrees celcius and methane boiled at - 161 degrees celcius. which of these substances has a stronger force of attraction between its particles? explain your answer

Draw the product formed when the compound shown below undergoes a reaction with br2 in ch2cl2.

What type of metamorphic rock has a random grain texture?

What is the name of a binary compound made up of lithium and chlorine?

A scientist in London and a scientist in California both conducted independent investigations that produced similar results.

When magnesium combines with oxygen, the reaction involves a. a conversion of protons into electrons. b. sharing of electrons between Mg and O. c. transfer of electrons from Mg to O. d. transfer of electrons from O to Mg.

The activation energy for the reaction no2 (g) + co (g) ⟶no (g) + co2 (g) is ea = 100 kj/mol and the change in enthalpy for the reaction is δh = - 375 kj/mol.

What process transform solar energy into chemical energy?