A covalent bond is formed when two atoms reach a stable state that balances: MARK TWO RESPONSES

A
the repulsion between the nucleus protons of one atom to the electrons of the other atom

B
the attraction between the nucleus of one atom to the electrons of the other atom

C
the attraction between the two nuclei of the atoms, which both contain protons

D
the repulsion between the two nuclei of the atoms, which both contain protons

they both have a y in them

state the principle of separating two immiscible liquids by separating funnel. describe an activity with diagram to separate a mixture of water and kerosene oil. answer: immiscible layers separate out in layers depending on their densities in separating funne

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.

a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.