During a chemical reaction,?

Question

(a) new elements are produced
(b)atoms are destroyed
(c)atoms are rearranged
(d)elements are destroyed

Answer 1

The answer is C.

Here is why:

A is incorrect unless it is a fission or fusion nuclear reaction. It would have to involve the combination of two nuclei or decay of the nucleus into multiple nuclei.

B Law of Conservation of matter makes this answer false. "matter is neither created nor destroyed"

C is correct because a reaction takes the atoms of the reactants and severs and forms bonds to rearrange how they are connected.

D is wrong for the same reason B is wrong: the Law of Conservation of Matter. plus, atom=element essentially.

(and by the way, baking soda (NaHCO3) and water (H2O) don't really react. The baking soda just forms ions.)

Answer 2

The association of atoms into molecules adjustments. this occurs with the help of the molecules colliding and swapping bits. There may well be some intermediate varieties. to illustrate, while burning methane CH4 in oxygen, O2, the prevalent reaction is CH4 + 2O2 --> CO2 + 2H2O yet you truly on no account have 2 O2s and a methane whacking into one yet another at precisely an identical time. It does take place, yet very rarely, a minimum of while in comparison with the bimolecular collisions achieveable. some steps may well be CH4 + O2 -> CH2O + H2O CH2O + O2 --> CO2 + H2O the significant thought is that of the "activated complicated" [or countless different names] that's the state the place 2 molecules have whacked into one yet another, and might the two react or leap off one yet another. It demands a undeniable power of collision to get to the activated complicated, referred to as the activation power. that is why reactions are speedier at larger temperature - with molecules shifting speedier, greater collisions might have power greater beneficial than the activation power [and there will be greater collisions in a given time].

Answer 3

a new chemical is made by a chemical reaction

bakind soda + water = hellium

Answer 4

c

Answer 5

I think it might be a?
Don't take my word for it though!!

Answer 6

c atoms are re arranged....

Answer 7

A

Answer 8

C??

Answer 9

c-