Three different pith balls (P, Q, and R) are charged by contact. Then the pith balls are brought close to each other. Pith balls P and Q attract each
other. Pith balls P and Rrepel each other. Which of these could be the
charges on the three pith balls?

a) OP:-Q: +R: +
b) P: - O: +R: -
c) P: - Q:-R: +
d) P: - Q:-R: -
e) O
P: +Q:-R: -

the answer is a. co2, this would be colder than the : )

explanation:

hurricanes form in warm water

c. electrical charges of ionic bonds.

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o