Answer:
The correct answer is liters , grams, degrees Celsius
Explanation:
The metric system is called also international system of units with this short symbols (SI) , It consists of many base units which can measure any physical amount or quantity .example for this bas units the Liters to measure volume, the kilogram and gram to measure the mass , Celsius degrees to measure the temperature using thermometers , also Ampire for measuring the current of the electricity and the second in measuring the time
but quarts , degrees fahrenheit and pints are parts of the imperial system
PH is the potential of hydrogen, pH provides a measure of the concentration of hydrogen ion while pOH scale provides the concentration of OH- ions.
pH denotes the negative logarithm of concentration of hydrogen while pOH denotes the negative logarithm of the concentration OH- ions.
Therefore; in this case the pOH= -log (OH-)
= - log (10^-10)
= 10
If the pOH is 10 then the pH of the solution will be 4
A observation! Hope this helps you!
Answer:
3.45 moles Li contains 2.08
×
10
(to the power of)24 atoms
.
Explanation:
The relationship between atoms and moles is:
1 mole atoms
=
6.022
×
10
(to the power of)23
atoms
In order to determine how many atoms occupy a given number of moles, multiply the given moles by
6.022
×
10
(to the power of)23
atoms/mole
.
In the case of 3.45 moles lithium (Li):
3.45
mol Li
×
6.022
×
10
(to the power of)23 atoms Li/
1
mol Li
=
2.08
×
10
(to the power of)24
atoms Li rounded to three
Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today
