Answer:
I think everything that's there is correct.
Explanation:
Bleach with pH of about 12.5 would be a strong base.
Milk with pH of 6.5 and Blood with pH around 7 would be neutral.
Battery acid with pH below 1 is strong acid and orange juice is weak acid.
Answer:

Explanation:
k stand for equilibrium constants in terms of reaction
The higher the value of an equilibrium constant the faster the equilibrium reaction comes to completion.
Consider the example below:
⇄
where

For a faster reaction the numerator i.e. the right hand side of the equation have to be higher than the left hand side (the denominator). therefore the higher the numerator, the higher the value of the equilibrium constant and the faster the reaction get to completion thus option c is correct.
1) Dalton stated that atom is matter that can not be divided, but it is proved that the atom can be divided into subatomic particles (electrons, protons and neutrons).
2) He stated that atoms of one element can not be changed into atoms of other elements, but now that is possible by nuclear reactions.
Today we still use his postulate: Atoms combine in the ratio of small whole numbers to form stable compounds, for example H₂O.
Answer:
6. mass=1930g
7.64.10ml
Explanation:
6. mass=density time volume
7.volume=mass divide by density