Answer:
Because 60 percent of our body weight is made up of water. Our bodies use water in all the cells, organs, and tissues, to help regulate body temperature and maintain other bodily functions.
Explanation:
Na₂CO₃ is a stronger base while
Na₂CO₃ puts more OH- ion into solution
The strongest base is [H₊]= 10 - 12
The strongest acid is PH = 0.5
If an acid is added to neutral water the H₊
will increase but when an acid added to neutral water
the OH⁻ will decrease.
The concentration of lead nitrate is 3.48 M.
<u>Explanation:</u>
The molarity can be found by dividing moles of sucrose by its volume in litres. We can find the number of moles of sucrose by dividing the given mass by its molar mass. Now we can find the moles as,
Here mass of Pb(NO₃)₂ is 380 g
Molar mass of Pb(NO₃)₂ is 331.2 g/mol
Number of moles = 
= 
= 1.15 moles
Volume in Litres = 330 ml = 0.33 L
Molarity = 
= 3.48 mol/L or 3.48 M
So the concentration of lead nitrate is 3.48 M.
Answer:
Density dependent factors include disease, competition, and predation. Density dependant factors can have either a positive or a negative correlation to population size
Explanation:
hope this helps ;)
Answer:
6,480 kilometers
Explanation:
1 day = 86,400 seconds
1 kilometer = 100,000 centimeters
Equation:
86,400 x 7,500 = 648,000,000
648,000,000 ÷ 100,000 = 6,480
Hope this helped : )
