When the amount of a radioactive substance is reduced by 50%, what has occurred?

gamma radiation

alpha radiation

a half-life

beta radiation

A flask contains a gas mixture of methane, hydrogen, and nitrogen with partial pressures of 1 atm, 1.2 atm, and 1.1 atm, respectively. What is the total pressure of the mixture?

Where is potential chemical energy stored? O Between different molecules In the bonds between atoms O in a closet Between the protons of an atom

During which phase of mitosis do sister chromatids separate from each other?

Is mixing salt and pepper physical change or chemical change?

What does not release carbon dioxide into the atmosphere

Silver chromate is sparingly soluble in aqueous solutions. the ksp of ag2cro4 is 1.12 * 10-12 m3. what is the solubility (in mol/l) of silver chromate

What do you think 1,5-pentanedithiol C5H12S would smell like

If an atom has sp hybridization in a molecule: the maximum number of σ bonds that the atom can form is

What is an oxidizing agent?

In times of hot dry weather some cities ban the use of garden sprinklers why do you think there is such a rule