D) none of them c) both a and b
Drei) The amount of energy needed to change the temperature of an object de
on:
a) the mass of the substance
b) The change in temperature
c) its nature
d) all of them,
) Utensils which have low specific heat capacity are:
agtha) wooded houses b) thermometer body c) frying pans and kettles
d) bandc
when they are heated
a) contracts b) expands
c) freezes d) all of the
fficient latent heat of fusion of copper is:
10 in J/kg
d the) Metals​

Achemistry student needs of 40ml diethylamine for an experiment. by consulting the crc handbook of chemistry and physics, the student discovers that the density of diethylamine is 0.7 . calculate the mass of diethylamine the student should weigh out. round your answer to significant digits.

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.

Calculate the ratio of h+ ions to oh– ions at a ph = 6. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 6. are they the same? why or why not? record your explanation in table a. what is the concentration of h+ ions at a ph = 6? mol/l what is the concentration of oh– ions at a ph = 6? mol/l what is the ratio of h+ ions to oh– ions at a ph = 6? : 1