Given an aqueous solution in which the [H+] = 2.0 x 10-5 M, what is the molar hydroxide ion [OH-] concentration?
O [OH-] = 5.0 x 10-'M
O [OH-] = 5.0 10-10 M
O [OH-] = 5.0 x
108
M
O [OH-] = 2.0 x 10-10 M
O [OH-] = 2.0 x 10-9 M.

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?