How do scientists form a hypothesis? A. by asking questions about there observations.

B. be designing experiments.

C. by writing down everything they see.

D. by drawing conclusions from their data

How many moles are in 7.2 x 10^23 carbon molecules? (*round to the nearest hundredth and include the unit "mol c" after your number) question 6 options:

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon