Daytime temperatures on Mercury are extremely hot because: it is close to the sun
it has long days
it has volcanoes
one side faces the sun
it gives off internal heat

i guess it’s a and b

v=ir = 3x15 =45 v

hello, i am papaguy.

i have found an answer to your question but use it as information.

information: because weak acids/bases have low concentration of hydrogen ions, the addition of water has a large impact on the ph. 2. a difference in 1 unit is a 10x difference in concentration for example; a liquid with ph of 3 is 10x more acidic than a liquid with a ph of 4. therefore, a liquid with a ph of 3 is stronger.

best of luck!