Which one of the following is NOT a similarity between carbon, C, and silicon, Si? -They are in the same group together.

-They have the same amount of core electrons.

-They have the same number of valence electrons.

-They have similar properties.

1. calculate the approximate enthalpy of the reaction in joules. estimate that 1.0 ml of vinegar has the same thermal mass as 1.0 ml of water. iqnore the thermal mass of th sodium bicarbonate. note: it takes about 4.2 joules () to change 1.0 gram (1.0ml) of water 1.0 c

Is laundry detergent an acid or a base?

How are the terms group and period used on the periodic table