quiz Lab 1

Question 1

These substances damage
or pollute the environment.

Answer 1

environmental hazard

Question 2

involves drawing a liquid into a pipette and allowing liquid to drain from the pipet in a
controlled manner. used to quantitatively transfer exact volumes of a liquid from one container to
another.

Answer 2

pipet

Question 3

Weighing consists of comparing a quantity or a material with known weight.

Answer 3

Triple Beam Balance

Question 4

Heat liquid substances over a burner by setting the container on a wire gauze supported on a

Answer 4

Tripod or iron ring

Question 5

large quantity of liquid for small quantity, use – as
container.

Answer 5

use a flask or a beaker; test tube

Question 6

technique used to separate a solid from a solution, and the liquid that is separated is
called FILTRATE

Answer 6

Filtration

Question 7

most useful when the solid is to be discarded and the filtrate is to be kept.

Answer 7

gravity filtration

Question 8

the change from a liquid state to a vapor phase; it is also a process of removing moisture
from a substance, as by heating, so as to get concentrated product.

Answer 8

evaporation

Question 9

usually contains
distilled water and provides a convenient
method to wash out test tubes or
pipettes.

Answer 9

wash bottle

Question 10

it is a porcelain container used to pound or grind solids into powders.

Answer 10

mortar and pestels

Question 11

a conical flask
with a broad base. The function of a flask
is to hold and store liquids. If graduated,
it can serve to make approximate
measurements of volume. The falsk is
made of specialized glass so it can be
heated and cooled without breaking. A
stopper or cover allows for storage of
liquids.

Answer 11

erlenmeyer flask

Question 12

is an ironware used to
firmly support set-ups on a stand.

Answer 12

iron clamp

Question 13

an ironware used to hold test tubes, especially when heating.

Answer 13

test tube holder

Question 14

an inverted conical apparatus with a tapering tube at the small end. They are usually made of
stainless steel, glass or pl;astics. It is used to channel liquid or fine-grained substances into containers with a
small opening.

Answer 14

funnel

Question 15

used for supporting
beakers and flask when they are being heated
with a bunsen burner. This is made up of a
metal mesh screen that contains a ceramic
fiber circle in the center that can withstand
extremely high temperatures

Answer 15

wire gauze

Question 16

it is a solid cylindrical glass used
to agitate liquids for speeding up reactions or
improving mixtures, also used to aid in the
transfer of liquids without spilling.

Answer 16

glass rod

Question 17

is a cylindrical tube
with a spout and graduation. They are
specifically designed to make accurate liquid
volume measurements.

Answer 17

graduated cylinder