Answer:
There are seven main taxonomic ranks: kingdom, phylum or division, class, order, family, genus, species. In addition, domain (proposed by Carl Woese) is now widely used as a fundamental rank, although it is not mentioned in any of the nomenclature codes, and is a synonym for dominion (lat.
Explanation:
The second option - electrons are the subatomic particles with the smallest mass.
Both protons and electrons have charge (protons are positive and electrons are negative)
Protons and neutrons both equal 1 amu (atomic mass unit), whereas electrons weigh about 1/1000 amu
Electrons orbit around the nucleus, whereas protons and neutrons are inside of the nucleus
And for the last option, I already answered it
Answer:
The answer is B (25%)
Explanation:
I think the answer is this because it's the smallest value in the options, and if you choose 0% the answer would be wrong.
Answer:
In a chemical reaction, there is a change in the composition of the substances; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a change in composition.
Explanation:
Answer:
C. CH₄+2O₂ →2H₂O+CO₂
Explanation:
This is a popular combustion reaction.
C. CH₄+2O₂ →2H₂O+CO₂
In combustion, hydrocarbons burn in the presence of oxygen gas and they produce water and carbon dioxide only. The process is accompanied with the release of energy.
We simply say for the above reaction that:
One molecule of methane(CH₄) reacts with two molecules of oxygen gas(O₂) to produce two molecules of water(H₂O) and one molecule of carbon dioxide only
