Answer:
D
Explanation:
D. The number of moles of a dissolved substance
The answer is (2) 2 pairs. The oxygen atoms combine to get stable structure. So after the combination, each atom needs to have 8 electrons. So when they share 4 electrons can satisfy this requirement. Then there are 2 pairs shared.
Answer: The answer would be 85F
Explanation: The odour molecules become airborne much more quickly in a warmer environment than a colder one. So the bottle of perfume to spread faster through the air faster when the room temperature is 85F
Answer:
convolutions.
Explanation:
the hippocampus- complex structure with a major role in learning and memory
the hypothalamus - structure of the brain near the pituitary gland
brain stem - yet another structure
An important information or constant to recall here is the Avogadros constant. This will help us solve how many moles are there from the number of atoms given. These is how we proceed:
Answer: <span>3.12 * 10^{-5} </span><span>grams of Sodium carbonate (Na2CO3) </span>
