Ummmm i think you probly can reaserch it on google
Answer:
42) 76
b)70
Explanation:
52) because you don't want to confuse different units. one ex)1cm is 1/ 100 of a meter
55) 1 km=1,000 meters
b) 10 decimterers = 1 meter
56)The SI standard for length is the meter the standard for volume is the cubic decimeter
ex) 1cm³=1mL
57) The two scales are the same. but there are no negative temperatures in Kelvin. 0 Kelvin is the lowest temperature possible.
0 Kelvin= -274.5 Celsius
C. 115 is your best answer
There are 118 elements in the Periodic Table
hope this helps
Physical is something you can see with your eyes Chemical is something you can not
Answer:
7.5×10^23 molecules of carbon dioxide
Explanation:
H2CO3 → CO2 + H2O
From the balanced reaction equation, one mole of carbonic acid produces one mole of carbon IV oxide.
1.25 moles of carbonic acid will produce 1.25 moles of carbon dioxide
If 1 mole of carbon dioxide contains 6.02×10^23 molecules
1.25 moles of carbon dioxide contains 1.25×6.02×10^23= 7.5×10^23 molecules of carbon dioxide