Express the answer to each of the following calculations in scientific notation with the correct number of significant figures A.)45.0•270
B.)(6.43•10^6)/1.7•10^9)
C.)(2.215•10^6)•(4.4•10^-2)
D.) 3225/(6.1•10^-4)
E.) 7•(1.8•10^2)
F.)0.00734/10450
G.) 12.01•(6.02•10^23)
H.)(1.24•10^24)/(6.02•10^21)
I.)(6.70•10^-3)•2.45

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

Will mark brainliest 26. which of these statements are true? (3 points) a. gases are compressible b. gases fill their containers completely c. the pressure of a gas is independent of the temperature d. gases have mass e. gases exert pressure f. the pressure of a gas is dependent on the volume g. gas pressure results from the collisions between gas particles h. gases have a definite volume and shape

Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d