Answer:
A
Explanation:
particles are frozen and hence will vibrate in their fixed positions
Answer:
0.735M
Explanation:
The balanced equation of reaction is:
HCl + KOH ===> KCl + H2O
Using titration equation of formula
CAVA/CBVB = NA/NB
Where NA is the number of mole of acid = 1 (from the balanced equation of reaction)
NB is the number of mole of base = 1 (from the balanced equation of reaction)
CA is the concentration of acid = 2.5M
CB is the concentration of base = to be calculated
VA is the volume of acid = 14.7mL
VB is the volume of base = 50mL
Substituting
2.5×14.7/CB×50 = 1/1
Therefore CB =2.5×50×1/14.7×1
CB= 0.735M
Answer:
94.44
Explanation:
Volume is equal to Mass/Density so therefore, you do the mass which is 68.0 g/0.72 g/mL which is the density and get 94.44 mL because the g cancel each other out when it comes to the label!
Answer:
group VI
Explanation:
there are 6 valance electrons and since valance electrons = group number, the group number will be 6
Explanation:
Jen runs at a little under 10m per second. Ann runs about 6m per second. Jen won because her time was faster. She reached 50m by 6 seconds while it took Ann 8 seconds. If the graph displayed their motion stopping, the line would continue straight horizontally along the 50m line as they would not be running anymore.