Which statement about chemical reactions is not true?
New atoms are formed as products.

The starting substances are called reactants.

The ways in which atoms are joined together are changed.

The bonds of the reactants are broken and new bonds of the products are formed.

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign

Which description best characterizes the motion of particles in a solid?

Nuclear decay is the spontaneous decay of one element into a. an x-ray b. a ray of light c. another element