Chemistry Honors

1st Test

Element or Compound

Pure substance (homogenous of one of these throughout material)

Heterogenous

Anything from animal is?

Homogenous

Air

21\.40

What is the measure?

How close measurement is to true value

Accuracy

How close measurements are to each other

Precision

Change in identity of substance

Chemical change

Change is state of matter and dissolving

Physical change

Solid to gas

Sublimation

to deliver

TD

to contain

TC

Not accurate, boiling, stirring, estimation, reaction vessel

Beaker

Not accurate, swirling, filtration, titration

Erlenmeyer Flask

accurate (TD), everyday measurment

Graduated cylinder

Very accurate (TD), small amounts

Glass pipet

Very accurate (TD), larger amounts, titration

Buret

Very accurate (TC), making a solution of certain concentration, meant to measure only specific amount

Volumetric Flask

9 zeroes

Giga (G)

6 zeroes

Mega (M)

3 zeroes

Kilo (K)

2 zeroes

hecto (h)

1 zeroes

deka (da)

0 zeroes

Unit

1 zero

deci (d)

2 zeroes

centi (c)

3 zeroes

milli (m)

6 zeroes

micro (µ)

9 zeroes

nano (n)

1g/1mL

Density of water

Cubed

Length Units that need to be volume

1 g = 1 mL

What is 1 gram equal to in mL?

1 in = 2.54 cm

What is 1 inch equal to in centimeters?

1 mL = 1 cm^3

What is 1 mL equal to in centimeters?

1 gal = 3.79 L

What is one gallon equal to in liters?

1 lb = 454 g

What is 1 pound equal to in grams?

1 lb = 16 oz

What is one pound in ounces?