Types of Matter / Changes
Homogeneous or Heterogeneous mixture: vinegar
What is a homogeneous mixture?
Conversion factor between meters & centimeters.
What is 1 m = 100 cm?
The 3 subatomic particles.
What is the proton, neutron, & electron?
Completely dissociates / ionizes in solution.
What are strong electrolytes?
Elements on the periodic table.
What are pure substances?
Number of significant figures in the number 843,052.
Location where 2 e- are held in an atom.
What is the 1st shell?
helium nucleus.
What is an alpha particle?
Name of MgCl.
The number of hydrogen atoms in the compound, H3P.
Convert 286 m to cm.
What is 28,600 cm?
Chlorine valence e-
What is 7?
Cannot penetrate through aluminum.
What is beta radiation?
Charge of iron & nitrate in Fe(NO3)3
What is 3+?
Burning paper.
What is a chemical change?
Number of significant figures in 0.000265
Nuclear charge of Lithium.
What is +12?
If Polonium-210 (Po) has a half-life of 140 days, how old is it if 1/8 of it is remaining?
What is 420 days old?
Examples of strong acid & strong bases
What is
acids: HCl, HBr, HI, H2SO4, HNO3, HClO4
bases: LiOH, NaOH, KOH, Ca(OH)2, Sr(OH)2, Ba(OH)2
Number of electrons in the ions P3- & Mg2+?
What are 18 & 8?
Number of cm in 425 km.
What is 4.25x107 cm?
Core charge of Na?
What is +10?
The missing product. (atomic #: 84 --> 82 ____)
Po-210 --> Pb-206 + ____
He-4
Major species present when K2S (aq) dissolved in water.
K+ (aq), S2- (aq)