1. Bubbling or fizzing is an indicator of

a. property change

b. phase change

c. physical change

d. chemical change

Is a ionic bond stronger for ions?

Which equation represents a neutralization reaction? a. LiOH (aq) + HBr (aq) - >LiBr (aq) + H20 (1) b. 2HCl (aq) + Zn (s) - > ZnCl2 (aq) + H2 (g) c. H2CO3 (0) - -> H2O + CO2 (g) d. 2NaHCO3 (s) - > Na2CO3 (s) + H2O (g) + CO2 (g)

The characteristic reaction for unsaturated hydrocarbons is substitution. True or False

Consider a radioactive sample with a half-life of one week. How much of the original sample will be left at the end of the third week?

Which of these would you expect to see in a diagram of earths energy budget? Check all that apply A) atmosphere B) stars C) clouds D) land E) moon

Which scientist developed the quantum mechanical model of the atom? a. Albert Einstein c. Niels Bohr b. Erwin Schrodinger d. Ernest Rutherford

How are metal atoms arranged according to metallic bonding?

why would it not be necessary to heat the air in the balloon as much if the air outside the balloon is colder?

Are the relationships in group 7a consistent with the periodic trend that you have been studying

Which is not a property of a mineral? A. cleavage B. reflection C. magnetism D. color