Answer:
HCl
Explanation:
Some easy ways to identify if a compound is an acid is to locate an H+ proton, while basic compounds will have an OH- ion.
Examine all the choices:
A) NaOH
Already, we see that OH is here, so it's a base, not an acid. Eliminate.
B) NaCl
This doesn't have an H+ or an OH-, so it's not an acid. It's actually a salt. Eliminate.
C) HCl
This does have an H+, so it's an acid.
D) 
Although this does have an H, it's a hydrocarbon - an organic compound. So, it's not an acid.
The answer is thus C.
<em>~ an aesthetics lover</em>
Answer:
C. 2 cells are formed, each having the same number of chromosomes as the original cell.
Explanation:
The products of mitosis are called diploid cells, they have the complete sets of chromosomes. These cells are usually important for activities such as growth, repair etc. They make up our normal body (somatic) cells. Therefore, the answer is 2 genetically identical cells.
A twitch is defined as a single, brief contraction period and then relaxation period of a skeletal muscle in response to a single stimulation. Contraction period involves receptive power strokes that pull the thin filaments past the thick filaments shortening sacromeres and muscle tension increases as the sacromeres shorten. Relaxation period begins with or release of cross bridges resulting from the return of Ca2+ back to sarcoplasmic reticulum. The strength of skeletal muscle contractions can be broadly separated into twitch, summation, and tetanus. A twitch is a single contraction and relaxation cycle produced by an action potential within the muscle fiber itself.
<h2>
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Earth or geoscience</u></em>
" investigates the interactions among the atmosphere, hydrosphere, biosphere, and geosphere.</h2>
Fossils have contributed to our understanding of evolution drastically. Every time we find a fossil, we learn something new about the animals and people that lived thousands of years ago. We learn how they walked and what our ancestors were like.
