As good as gold : especially used to describe children's behaviour as well- behaved.
Regular as a clock in the phrase "is as regular about her task as a clock" : means that is very punctual. does everything right on time.
Mother hen in the phrase "watches over us like a motherly old hen" means : like an overly protective and fussy parent, who watch over their brood and care a lot.
Answer:
b. Oxygen
Explanation:
It can be seen that the chemical equation have 2 moles of hydrogen gas that should be reacted with the one mole of oxygen gas
Now for 4.2 moles, the hydrogen gas would be reacted as
= 4.2 × 1 ÷ 2
= 2.1 mole oxygen gas
Therefore the hydrogen would be limited the reagent because it limits the product formation
On the other hand, the oxygen is the excess reagent i.e.
= 3 - 2.1
= 0.9 moles
This would be left for oxygen
Hence, the correct option is b.
Answer:
Did you have time to check my homework Dad?
Explanation:
The reason it is wrong is because it doesn't have the right punctuation for the compound/complex sentence.
Hope I helped!
