Answer:
Here's what I find
Explanation:
Sodium vapour produces mostly yellow light.
Mercury vapour produces mostly blue light.
A white car reflects all colours back to our eyes.
A coloured car, say green, absorbs all the other colours and reflects the green.
Under a sodium light, a white or a yellow car will appear yellow. A red car will be nearly black because there is no red light to reflect.
Under a mercury light, a white or a blue car will appear blue. A yellow car will be quite dark, but there will be a yellowish tinge because there is some yellow in the Hg spectrum for it to reflect.
The picture below shows a red car and a black car under sodium light. Can you tell which is which?
Considering the reaction of hydrogen and oxygen to produce water. If 24.6 g of water is produced and 2.9 g of hydrogen is used, the amount of oxygen needed is 21.87 grams
The best way to solve this question is to write out the reaction between hydrogen and oxygen that resulted in the formation of water.
So, we have:
From the above reaction;
2 moles of hydrogen gas reacted with 1 mole of oxygen to produce 2 moles of water.
If;
- 1 mole of O₂ = 32 grams of O₂
- 2 mole of H₂O = 2 × 18 grams of H₂O
- 2 mole of H₂O = 36 grams of H₂O
We can deduce that since 1 mole of O₂ produced 2 moles of H₂O;
Thus, 32 grams of O₂ is needed to produce 36 grams of H₂O.
∴
To produce, 24.6 grams of H₂O, we have:
= 21.87 grams of oxygen.
Therefore, we can conclude that the amount of oxygen needed is 21.87 grams.
Learn more about chemical reactions here:
brainly.com/question/1689737?referrer=searchResults
The color formed when N2O is bubbled through Feso4 is = reddishbrown
Answer:
D. Tetrahedral is the best description of methane's shape.
Explanation:
In that position hydrogen atoms are as far from one another as they can get. It is that way because hydrogen atoms repels each other.
Answer:
D
Explanation:
water is used to delude just about anything