A scientist took a sample of enzymes from cow saliva and mixed them with a form of starch found in grains. After a while the starch
broke into many smaller molecules. This shows that
ОА.
cows do not use the food that they eat.
B.
grains are made of enzymes.
C.
Cows should not be fed grains.
D.
cows break down the food that they eat.

How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123

Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]

How might this scientific phenomena be explained? a paper clip floats on water.