Answer:
2/3, or .66
Explanation:
Answer:
It is Ka for the acid H3P2O72−.
Explanation:
The balanced reaction is:
2Mg + O2 = 2MgO
We are given the amount of magnesium to be reacted with O2. This will be the starting point of the calculations.
4.00 g C3H8 ( 1 mol Mg/ 24.31 g Mg ) ( 1 mol O2 / 2 mol Mg ) ( 32.0 g O2 / 1 mol O2 ) = 2.63 g O2
Answer:
64.0 grams!
Explanation:
Use the mole ratios
b. She is incorrect because the beaker of water has thermal energy.
c. She is incorrect because all water contains hydrogen and oxygen.
d. She is correct because the beaker of water is at room temperature.
Answer:
a
Explanation:
im thinking because the water is a room temperature there shouldnt be anm immence amount og heat energy for it to have a good amount of energy tho i could be wrong because its not moving it could have no energy.
Answer: please tell me i have this exact thing on a test rn i need the answer
Explanation:
To find the volume ratios we say m1v1=m2v2
where m1 is the initial molarity, m2 the final molarity, v1 the initial volume, v2 the final volume.in this question m1=2.00M, m2=0.40M v2=150ml
Therefore the expression becomes: 2.00M×v1=0.40M×150mL
v1=(0.40M×150mL)/2.00M
=30mL