Which of the following will cause a graded hyperpolarization on a postsynaptic neuron? a. a neurotransmitter binding to a chemically gated sodium channel b. a neurotransmitter binding to a voltage gated potassium channel c. a neurotransmitter binding to a chemically gated potassium channel d. a neurotransmitter binding to a voltage gated sodium channel

When a chemist collects hydrogen gas over water, she ends up with a mixture of hydrogen and water vapor in her collecting bottle if the pressure in the collecting bottle is 97.1 kilopascals and the vapor pressure of the water is 3 2 kilopascals, what is the partial pressure of the hydrogen?

Bridget is in science class. her teacher gives her two unknown substances and asks her to determine their relative ph. she places a piece of red litmus paper into both substances. the litmus paper turns purple when she places it into substance i. the litmus paper turns blue when she places it into substance ii. a. substance i is a neutral substance and substance ii is an acid. b. substance i is a neutral substance and substance ii is a base. c. substance i is an acid and substance ii is a base. d. substance i is a base and substance ii is a neutral substance.

How many grams are there in one megagram