Answer:
0.64 moles of table salt = 37.44 grams of table salt
Explanation:
mNaCl = 0.64 x (23 + 35.5) = 37.44 grams
If the buret is dirty, it will react with the NaOH in the buret and will cause your concentration to be off.
Answer: all of the above
Marine debris are among the biggest threats in the oceans nowadays. These include materials that are intentionally or unintentionally left in the ocean or any marine environment. Marine debris may include cigarette butts, food wrappers, bottle caps, straws, grocery bags and others.
Answer:
He blasted alpha rays at the gold foils. The Alpha rays are charged positive. When he blasted them the protons deflected and changed the course of them and the electrons surrounding the atom let them through. In the plum pudding model they were supposed to be sprinkled on which was clearly wrong according to that experiment.
Explanation:
Answer:
(C) O, C, H, N
Explanation:
<u>Roughly 96% of mass of human body is made up of four elements which are oxygen, carbon, nitrogen and hydrogen.</u>
Oxygen and hydrogen are predominantly found in the water, which makes up about 60% of body's weight. Carbon is synonymous with the life. The central role of carbon is due to fact that it has four bonding sites which allow for building of long and complex chains of the molecules. Moreover, these carbon bonds can be formed and also be broken with amount of energy which makes life alive. Nitrogen is found in organic molecules, including amino acids which make up the proteins, and nucleic acids which make up the DNA.
