Craw's Chemistry Review

Question 1

Which is a neutralization reaction

Accepted Answer

H2SO4 + 2 NH4OH --> (NH4)2SO4 + 2 HOH, 2 NaOH + H2CO3 --> N2CO3 + 2 NaOH, Ca(OH)2 + H2CO3 --> CaCO3 + 2 HOH, HCl + NaOH --> NaCl + HOH

Question 2

Which one is an example of a combustion reaction?

Accepted Answer

magnesium metal burning in air to produce magnesium oxide

Question 3

Which has the shortest bong length?

Accepted Answer

triple bond

Question 4

What is the atomic weight of Hydrogen?

Accepted Answer

1.00794

Question 5

What is thermochemistry?

Accepted Answer

relationship between chemical reaction and energy changes

Question 6

Which is the ideal gas law?

Accepted Answer

pV = nRT

Question 7

Which is the uncertainty principle?

Accepted Answer

ΔpΔx≥h4π

Question 8

Which is Dalton's law of partial pressures?

Accepted Answer

total pressure of gases is determined by total moles of gas

Question 9

What is the electron configuration of Cl-?

Accepted Answer

1s22s22p63s23px23py23pz2

Question 10

Which is a classification of a solid?

Accepted Answer

metal solid, ionic solid, molecular solid, covalent-network solid

Question 11

What are colloids?

Accepted Answer

mixtures with solute larger than normal but small to suspend

Question 12

What is the molecular geometry of SF6?

Accepted Answer

octahedral

Question 13

What is precision?

Accepted Answer

measure of how closely a measurement agrees with another

Question 14

What is the triple point?

Accepted Answer

the place where all three phases are in equilibrium

Question 15

What is the octet rule?

Accepted Answer

atoms tend to gain, lose, or share electrons until 8 valence

Question 16

Which is Boyle's Law?

Accepted Answer

PiVi = PfVf

Question 17

Which is an intermolecular force?

Accepted Answer

Hydrogen bond, Covalent bond, Van Der Waals, dipole - dipole forces

Question 18

What is the ionization energy of an atom or ion?

Accepted Answer

minimum energy required to remove an electron from a state

Question 19

Which is a precipitate reaction?

Accepted Answer

CdSO4(aq)+K2S(aq)→CdS(s)+K2SO4(aq)

Question 20

Which is Avogadro's number?

Accepted Answer

6.02214129 * 10^ 23, 6.02 * 10^23

Question 21

What is the electron configuration of Flourine?

Accepted Answer

[He] 2s2 2p5

Question 22

What is important about Hess's law?

Accepted Answer

overall enthalpy cahnge is independent from steps and path

Question 23

What is the atomic number of Barium?

Accepted Answer

56

Question 24

What is true about Dalton's atomic theory?

Accepted Answer

each element is composed of extremely small particles (atom), atoms of the same element are identical, atoms are neither created nor destroyed, compounds form when atoms of different elements combine

Question 25

What is viscosity?

Accepted Answer

resistance of a liquid to flow

Question 26

What is addition polymerization?

Accepted Answer

polymerization where monomers couple through multiple bonds

Question 27

How do you calculate percent yield?

Accepted Answer

(actual yield)/(theoretical yield) * 100%

Question 28

What is an element?

Accepted Answer

substances that cannot be decomposed into simpler substances

Question 29

What are resonance structures?

Accepted Answer

Lewis structures that are equal, but different placements

Question 30

What is the bonding atomic radius for any atom in a molecule?

Accepted Answer

it is equal ot half the bond distance

Question 31

What is the electron-domain geometry of CIF3?

Accepted Answer

trigonal bipyramidal

Question 32

What is a oxidation reduction reaction?

Accepted Answer

reaction where electrons are transferred from reactants, redox reaction

Question 33

What is bond order?

Accepted Answer

1/2 * (# of bonding electrons - # of anitbonding electrons)

Question 34

What is a cation?

Accepted Answer

an ion with a positive charge

Question 35

What is the equation for density?

Accepted Answer

mass / volume

Question 36

What is the first law of thermodynamics?

Accepted Answer

energy can neither be created nor destroyed

Question 37

What is the equation for speed of light?

Accepted Answer

λν = c

Question 38

What is an alloy?

Accepted Answer

material that contain 1+ element & has properties of a metal

Question 39

Which is molality?

Accepted Answer

(moles of solute)/(kilograms of solvent)

Question 40

What is miscible?

Accepted Answer

liquids that mix in all proportions

Craw's Chemistry Review

Questions 40

Craw's Chemistry Review

Questions 40