Callie rode her bike from the tree at point a back to her house to pick up her jacket while sue road her bike directly from the tree at point a to the tree at point c, where the girls planned to go hiking. which of the following statement is true?
a) displacement for both girls was the same.
b) callie had a bigger displacement than sue
c) sue had a bigger displacement than callie
d) the girls traveled the same distance.

B) Callie had a bigger displacement than Sue

Explanation:

Callie rode her bike from the tree at point A to her house and then to the tree at point C. From the picture, we can see that's a trip of 4 + 3 = 7 meters.

Sue rode her bike directly from the tree at point A to the tree at point C. From the picture, we can see that's a trip of 5 meters.

the tides are influenced by both the moon and the sun, it's easy to see that when the sun lines up with the moon and the earth, as during a new moon or full moon, the tidal effect is increased. these are known as spring tides, named not for the season, but for the fact that the water "springs" higher than normal. on the other hand, if the sun and the moon are 90 degrees apart in relation to an observer on earth as during the first quarter moon or third quarter moon, then high tides are not as high as they normally would be. this is because despite its greater distance, the sun's mass allows it to exert enough gravitational force on the oceans that it can negate some of the effects of the moon's pull. this phenomenon of lower high tides is called a neap tide. if you need more information on this topic visit moonconnection.com.

given:

mass of na = 115 g

excess cl2

to determine:

mass of nacl produced

explanation:

given reaction is-

2na(s) + cl2(g) → 2nacl(s)

since cl2 is in excess, na will be the limiting reagent

as per the reaction stoichiometry na: nacl = 1: 1

i.e. moles of na reacted = moles of nacl formed

now, # moles of na = mass of na/atomic mass

                                  = 115 g/23 g.mol-1 = 5 moles

therefore, moles of nacl = 5

molar mass of nacl = 58 g/mol

mass of nacl = 5 moles * 58 g.mol-1 = 290 g

ans: amount of nacl produced = 290 g