Chemistry
Sig figs/scientific Notation
Vocabulary
Videos
Test one and retest material
100

One cup contains water, and the other cup contains isopropanol, a common component of rubbing alcohol. To differentiate the liquids you can use what?

What are there physical properties

100

The measurement of 3500 mL has how many significant figures.

What is 2 significant figures

100

What is a heterogeneous mixtures

What is a mixtures that are not uniform throughout (a bowl of mixed nuts)

100

Alkali metals can conduct heat be cut and are soft metals How many valence electrons does an alkali metal have?

What is one valance electron.

100

-273C0 equals how many kelvins(k)

What is 00k

200

What are the four states of matter

What is solid, liquid, gas, plasma

200

Which number is an example of a captive zero: 0.054, 50.0, 0.504?


What is 0.504

200

What is intensive property

What is a property that does not depend on the amount of matter present, such as pressure, temperature, or density

200

Which element has a larger atomic radius Na or Mg

What is Na. Atomic radius decreases left to right across the periodic table.

200

Quantity is measured in what?

What are moles.

300

Matter can be classified as either

What is a mixture or pure substance.

300

What would 41.096 be in scientific notation and how many significant figures.

What is 4.1096 x 101 with 5 significant figures

300

What is chromatography


separates mixtures based on their different relative attractions to a medium, such as paper, and a solvent, such as water.

300

Electronegativity increase in what direction on the periodic table?

What is left to right.

300

2120F=____k

What is 373k

400

The melting temperature of a piece of metal is

What is an example of an intensive property

400

The distance from the earth to the moon is 238,900 miles. What is this in scientific notation and how many significant figures are there?

What is 2.389 x 10.5 with 4 significant figures

400

What is electrolysis

chemical decomposition produced by passing an electric current through a liquid or solution containing ions

400

Which element is "one of the strongest reducing agents" and which element is the most reactive?

What is "lithium (Li)  and francium(Fr) respectively.

400

What is the correct way to smell a chemical?

What is wafting?

500

What is a Bose-Einstein condensate (BEC)

extremely cold particles just above absolute zero (⁠–⁠273 °C or 0 K) barely move. BEC particles have so little energy that they clump and behave as a single particle.

500

The diameter of a piece of human hair was 181um. What is this number expanded?

What is 0.000181 um

500

What is thermal decomposition

at high temperatures bonds holding a compound together break, causing a compound to decompose into simpler substances

500

Why is "H" not considered an alkali metal?

At room temperature it is a gas

500

What is proper dress for the lab? (there are 6 answers name 4)

What are goggles/safety glasses, gloves, closed toe shoes, no loose clothing, no hanging jewelry, long hair tied up.

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