1.50 Which of the following statements could be true according to the atomic masses on the periodic table? E
Statement
True or
False
Explanation
False
a. Si-28 is higher in abundance than Si-30.
b. Argon consists of a roughly 50:50 mix of
Ar-36 and Ar-40
c. Strontium is predominantly composed of
Sr-86.
d. Neon is composed of a near equal mix of
Ne-20 and Ne-21

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins.co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)

How do you know when a chemical reaction has occurred

Abaker touches a pie right after taking it out of the oven. which statement best explains why the pie feels hot?