To measure a specific volume of a gas, you must have a(n)
a. scale.
b. open container.
c. closed container.
d. open or closed container depending on the type

The correct answer is option c.

Explanation:

Gas is example of fluid.

Fluid is a freely flowing substance with no definite shape. They can be easily changed. Other examples of fluid are water, oil etc.

To measure the specific volume of the gas we must have a container along with the lid to seal the gas inside the container. If not sealed the gas will flow out of the container and that will result recording of incorrect values for specific volume of gas.

yes it is balanced

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