oxygen,crabon dioxide,and glucose
Avagadros constant states that there are 6.022 x 10²³ units in 1 mol of substance.
These units could be atoms that make up an element, or molecules making up a compound or ions as well.
1 mol of O₂ contains - 6.022 x 10²³ molecules of O₂
molecular mass of O₂ is (16*2) = 32 g/mol
1 mol of O₂ weighs = 32 g
Therefore in 32 g of O₂ - 6.022 x 10²³ O₂ molecules
gas tank contains O₂ weighing 650 g
in 1 g - 6.022 x 10²³/32 molecules
in 650 g - 6.022 x 10²³/32 * 650
= 2.96 x 10²² molecules of O₂
Answer:
It contains a protective layer of ozone.
Explanation:
The ozone layer is not contained in the troposphere. It is located in a layer above above the ozone which is called the stratosphere.
- The troposphere is lowest layer of the atmosphere
- This layer is the closest to us and it is where all weather conditions occur.
- It has a thickness of about 10km.
- Also, in the troposphere, temperature decreases vertically up.
The physical composition of something I believe
Answer: D- previous models
Explanation:
Because you always have to build off of other things to help make yours better and learn from the mistakes