Chapter 2- Analyzing Data
How many significant figures in 53040?
4
Give the name of one element.
Answers vary.
How many valence electrons does the element cesium (Cs) have?
1
What is the formula for lithium hydroxide?
LiOH
What is Mrs. Valenton's favorite color?
purple
How do you write 0.930 m in scientific notation?
9.3 x 10-1 m
Which is the state of matter that has an indefinite shape and indefinite volume?
Gas
What wave has the highest energy?
Gamma rays
What is the name of Cu2O?
copper (I) oxide
What state is Mrs. Valenton originally from?
California
What is 50.0°C in Kelvin?
323K
The law of conservation of mass states that during a chemical reaction, total mass is ____.
conserved
Which wave has the longest wavelength?
radio waves
Which is the correct name for the compound NO?
nitrogen monoxide
What letter of the alphabet do her boys names start with?
M
What is the mass percent of copper in CuBr2?
28%
Name a compound.
Answers will vary.
Which property describes how much energy must be added to an atom to remove an outermost electron?
ionization energy
What is the name of NH4F?
ammonium fluoride
What previous career was Mrs. Valenton considering before becoming a teacher?
Physician Assistant
Mrs. Valenton’s son is 37 inches tall. How many yards tall is he? (1yd = 3ft and 12in = 1ft)
1.0 yards
Give an example of a chemical change.
Answers will vary.
What is the relationship between frequency and wavelength?
inversely related (opposite)
Name NaClO2.
sodium chlorite
What percentile did Mrs. Valenton graduate in from high school?
Top 5%...Top 10%...Top 25%
Top 5%