Chemistry
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
The measurement of 3500 mL has how many significant figures.
What is 2 significant figures
What is a heterogeneous mixtures
What is a mixtures that are not uniform throughout (a bowl of mixed nuts)
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.
-273C0 equals how many kelvins(k)
What is 00k
What are the four states of matter
What is solid, liquid, gas, plasma
Which number is an example of a captive zero: 0.054, 50.0, 0.504?
What is 0.504
What is intensive property
What is a property that does not depend on the amount of matter present, such as pressure, temperature, or density
Which element has a larger atomic radius Na or Mg
What is Na. Atomic radius decreases left to right across the periodic table.
Quantity is measured in what?
What are moles.
Matter can be classified as either
What is a mixture or pure substance.
What would 41.096 be in scientific notation and how many significant figures.
What is 4.1096 x 101 with 5 significant figures
What is chromatography
separates mixtures based on their different relative attractions to a medium, such as paper, and a solvent, such as water.
Electronegativity increase in what direction on the periodic table?
What is left to right.
2120F=____k
What is 373k
The melting temperature of a piece of metal is
What is an example of an intensive property
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
What is electrolysis
chemical decomposition produced by passing an electric current through a liquid or solution containing ions
Which element is "one of the strongest reducing agents" and which element is the most reactive?
What is "lithium (Li) and francium(Fr) respectively.
What is the correct way to smell a chemical?
What is wafting?
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.
The diameter of a piece of human hair was 181um. What is this number expanded?
What is 0.000181 um
What is thermal decomposition
at high temperatures bonds holding a compound together break, causing a compound to decompose into simpler substances
Why is "H" not considered an alkali metal?
At room temperature it is a gas
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.