Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made. t or f

In all trials, the magnitude of the final velocity for g1 + g2 was less than the magnitude of any initial velocity. as mass increased, what happened to the velocity? the velocity decreased. the velocity increased. the velocity of g1 + g2 could not be measured. the velocity was not affected by the mass increase.

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87