1. C
2. D
3. A
4. B
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Answer:
Freezing and condensation
Explanation:
Because they are exothermic, they release energy
Answer:
n = 1.075 moles
Explanation:
Given that,
Mass of oxygen = 34.4 gram
The molar mass of oxygen gas = 32 g/mol
We need to find the number of moles of oxygen. We know that,
No. of moles = given mass/molar mass
So,

So, there are 1.075 moles in 34.4 g of Oxygen gas.
Explanation:
mg 2+ losses 2 electron due to the charge on it making it change from 12 to 10.and ne is also 10
Parthenolide is a sesquiterpene lactone which occurs naturally in the plant feverfew--highly concentrated in the flowers and fruit.