Answer:
1. Polar
2 nonpolar
3. Nitrogen or oxygen
4.carbon
5.Repelled by and attracted to
Answer:
No
Explanation:
They do not have any sensing organs. They can't see, smell or move on their own. They rely on random motions from their host to move around.
Answer:
Actual yield: 86.5 grams.
Explanation:
How many moles of formula units in 95 grams of calcium carbonate ?
Refer to a modern periodic table for relative atomic mass data:
- Ca: 40.078;
- C: 12.011;
- O: 15.999.
Formula mass of :
.
.
How many moles of will be produced?
The coefficient in front of in the chemical equation is the same as that in front of . That is:
.
.
What's the theoretical yield of calcium chloride? In other words, what's the mass of of ?
Again, refer to a periodic table for relative atomic data:
.
.
What's the actual yield of calcium chloride?
.
.