Explanation:
For example, pH 10 is ten times more alkaline than pH 9 and 100 times (10 times 10) more alkaline than pH 8. Pure water is neutral. But when chemicals are mixed with water, the mixture can become either acidic or basic.
We have 8.22 1 C atoms
We have 4.11 1 ethanol molecules
<u>Explanation</u>:
Step 1: Data given
Molecular formula of ethanol =
Mass of C = 164 grams
Molar mass C = 12.01 g/mol
Step 2: Calculate moles C
Moles C = mass C / molar mass C
Moles C = 164 grams / 12.01 g/mol
Moles C = 13.66 moles
Step 3: Calculate molecules of C
Atoms C = moles C number of Avogadro
Atoms C = 13.66 moles 6.02 1 molecules/ mol
Atoms C = 8.22 1 C atoms
Step 4: Calculate molecules in the sample
For 1 mol we have 2 moles C
For 13.66 moles C we have 13.66/ 2 = 6.83 moles
Molecules = 6.83 moles 6.02 1 = 4.11 1 molecules.
Answer: A
jk D
Explanation: because its math
Answer:
Electrons
Explanation:
"This free-floating collection of electrons gives metals many of their unique properties, and is sometimes called a “sea of electrons,”
Learn more about it at this website:
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&uact=8&ved=2ahUKEwjUw9Sbl7nmAhWQKs0KHXFGCakQFjACegQICxAK&url=https%3A%2F%2Futexaslearn.instructure.com%2Fcourses%2F2010099%2Fpages%2Fexplain-i-metallic-bonding-and-properties-2&usg=AOvVaw3B0fp0MY7ut9ssl_ebAgP7
Because there are many numbers of the human measurement . we must manage the uncertainly doing calculations because we can know what we are calculating.