Object a has a mass of 12 g and a density of 3 g/cm3. object b has a mass of 12 g and a density of 5 g/cm3. which object has a greater volume and by how much? object a, by 2 6 cubic centimeters object a, by 1.6 cubic centimeters object b, by 2 6 cubic centimetersobject b, by 1.6 cubic centimeters

Object A is greater by 1.6 cm

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.