What particles in an atom can increase or decrease without changing the identity of the element?

If the water in a bathtub and a teacup are the same temperature, how do the amounts of their thermal energy compare? A. They both have the same amount of thermal energy. B. The teacup has more thermal energy. C.

Which is the electron configuration for zinc? A) 1s22s22p63s23p63d84s2 B) 1s22s22p63s23p63d104s1 C) 1s22s22p53s23p63d104s2 D) 1s22s22p63s23p63d104s2

What is the is the loss of elevation after 2 1/2 minutes

How many isomers of dichloroethylene have a zero dipole moment?

To determine which one of the products in a precipitation reaction is the precipitate, which of the following should you follow? A. The Activity Series B. The Law of Conservation of Mass C. Solubility Rules D. The Law of Conservation of Energy

Describe how you could determine the specific heat of a sample of a solid substance. You may assume that the substance does not react with water.

Combustion of 7.54 g of liquid benzene (C6H6) causes a temperature rise of 50.3°C in a constant-pressure calorimeter that has a heat capacity of 6.27 kJ/°C. What is ∆H for the following reaction? C6H6 (l) + O2 (g) → 6CO2 (g) + 3H2O (l)

What is the compound name for the ion chemical formula AgBr?

Which principal energy level of an atom contains an electron with the lowest energy? A) n=1 B) n=2 C) n=3 D) n=4

Are erasers made from rubber?