7. Mike was mixing a batch of glue and borax solution to make silly 1 point putty and discovered a new substance that glows in the dark. He
gave John his specific amounts of ingredients and the steps of
his procedure. He asked John to try the experiment to see if he
gets the same results. This is an example of
.(SC. Z.N.1.2) *
A)repetition
B)replication
C)a model
D)a field study
*SIENCE HURRY HELP I NEED A GOOD GRADE!*

Two nitro no2 groups are chemically bonded to a patch of surface. they can't move to another location on the surface, but they can rotate (see sketch at right). it turns out that the amount of rotational kinetic energy each no2 group can have is required to be a multiple of ε, where =ε×1.010−24 j. in other words, each no2 group could have ε of rotational kinetic energy, or 2ε, or 3ε, and so forth — but it cannot have just any old amount of rotational kinetic energy. suppose the total rotational kinetic energy in this system is initially known to be 32ε. then, some heat is removed from the system, and the total rotational kinetic energy falls to 18ε. calculate the change in entropy. round your answer to 3 significant digits, and be sure it has the correct unit symbol.

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

When water dissolves sugar, which process is not involved? o dissociation o hydration o surface area of the solute increases sa