Is adding hot cocoa to hot water a chemical or physical change?

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?