After a nucleus undergoes radioactive decay, its new mass number is:

always less than its original mass number

always more than its original mass number

never less than its original mass number

never more than its original mass number

A cell consists of a gold wire and a saturated calomel electrode (S. C. E.) in a 0.150 M AuNO 3 solution at 25 °C. The gold wire is connected to the positive end of a potentiometer, and the S. C. E.

Investigating a fire scene, you determine several places where fires started. What might you guess about the cause of the fire? A. It was an electrical fire B. It was deliberately set C. An accelerant was used D. It was an accident

If 54 J of heat is added to an aluminum can with a mass of 25.1 g , what is its temperature change? Specific heat capacity of aluminum is 0.903 J/ g ∘ C

In which state of matter is there no particle motion? matter is there no particle motion? Question 4 options: a. Gas b. Liquid c. Plasma d. Solid

Two identical pots, one black and one silver, containing exactly the same amounts of water, are heated to the same temperature. They are left uncovered and placed in the same room.

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda