When you hold a textbook and a pencil why does the textbook feel heavier than the pencil? You can grip the pencil with more strength

Your hand repels the textbook with less force.

The textbook has a stronger attraction to Earth.

The textbook has less mass than the pencil

Nitric oxide (no) can be formed from nitrogen, hydrogen and oxygen in two steps. in the first step, nitrogen and hydrogen react to form ammonia: n2(g) + 2 h_2(g) rightarrow 2 nh_3 (g) delta h = -92. kj in the second step, ammonia and oxygen react to form nitric oxide and water: 4 nh_3(g) + 5 o_2(g) rightarrow 4no(g) + 6 h_2o(g) delta h = -905. kj calculate the net change in enthalpy for the formation of one mole of nitric oxide from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .

All forces cause motion? true or false

How many moles are in 123.0 grams of kclo4?