The grams of carbohydrate in one apple if the apple has no fat and no protein and provides 53 kcal of energy express your answer to two significant figures and include the appropriate units.

Read the given expression. x = number of protons − number of core electrons which of the following explains the identity of x and its trends across a period? x is the effective nuclear charge, and it remains constant across a period. x is the screening constant, and it remains constant across a period. x is the effective nuclear charge, and it increases across a period. x is the screening constant, and it increases across a period.

If a substance is not at its melting or boiling point, as the heat content of a sample of matter increases, its temperature increases the number of intermolecular bonds decreases the space between particles increases the particles move faster

Can someone me with 3 and 4 plz. this is for masteries test.