1.61 x 104 molecules Od
2.26 x 1029 molecules
Oe
1.77 x 1029 molecules
Question 5 (1 point)
A 1.3 kg block of copper initially at 12°C is dropped into a large vessel of liquid nitrogen. The temperature of the liquid nitrogen is 70 K. Find
the amount of liquid nitrogen that boils away as the copper reaches 70 K. (c(copper) = 385 J/kg.°C, L(nitrogen) = 2 x 105 j/kg

why is cellular respiration important for homeostasis?

it changes food into energy that the organism can use.

which of the following is most likely to happen if a cell is not able to divide?

the cell will not be replaced when it is damaged.

explanation:

d.) circle motion requires a force to give it a centripetal acceleration.

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.