Answer:
8×10^(-3) mol/L
Explanation:
The formula for finding the hydrogen ion concentration is...
[H⁺] = 10^-ph
[H⁺] = 10^(-2.1)
[H⁺] = 0.00794...mol/L = 8×10^(-3) mol/L
The answer is to 1 significant digit because the pH has one decimal place.
The blood the reaches the cells from the capillaries food and O2 pass to cells, CO2 and wastes
pass to blood. The rest of the choices do not answer the question above.
Answer:
Cells can only be formed by division of pre-existing cells. [Students should be aware that the 64 codons in the genetic code have the same meanings in nearly all organisms, but that there are some minor variations that are likely to have accrued since the common origin of life on Earth
Explanation:
If the arrangement of atoms in a substance changes, then the overall chemical properties and reactivities of that particular substance changes as well.
Answer:
Pergunta 1: Como se forma um óxido?
Pergunta 2: O que acontece com uma moeda quando escurece?
Pergunta 3: Quais outros compostos podem ser formados a partir de óxidos?
