Answer:
bro u ain't got to answer that just skip it
Answer:
C
Explanation:
Because i just had to do this on my assignment and got 100
Answer:
B. Density
Explanation:
Density is the only property of liquid in the option that is feasible.
Water has no form of magnetism as it’s not a magnetic substance.
Water carries the size of the container it is put into and has no definite shape.
Water’s boiling point can only be gotten when it’s heated and it’s known to be mostly 100 degree celsius when pure and may be more or less depending on the level of impurities.
However Density is the mass per volume of water and can be calculated before the noodle is cooked which is more effective in its differentiation.
Answer:
1. 0.0500 moles K, 0.0250 moles Cr and 0.1000 moles O.
2. 9.00 moles ammonium ions are present.
Explanation:
1. In 1mol of K2CrO4 there are 2 moles of K, 1 mole of Cr and 4 moles of O.
The moles in 0.0250 moles K2CrO4 are:
0.0250mol * 2 = 0.0500 moles K
0.0250mol * 1 = 0.0250 moles Cr
0.0250mol * 4 = 0.1000 moles O
2. In 1 mole of (NH4)2CO3 there are 2 moles of ammonium ions, NH₄⁺.
In 4,50 moles are:
4.50 moles * 2 = 9.00 moles ammonium ions are present
Answer:
Explanation:
First you should calculate the volume of a big sphere,so:
Then you calculate the volume of a small spehre, so:
Finally you subtract the two quantities:
