Answer:
I believe the answer is "b". "During the experiment, the scientist has only one element, or variable, that is changed to test the hypothesis."
Explanation:
I remember from last year but I'm not totally sure. Good luck!
Answer:bromine , neon , helium , argon , lithium , beryllium
Explanation:
N = ?
T = 449 K
V = 58.35 L
P =2.97
R = 0.082
Use the clapeyron equation:
P x V = n x R x T
2.97 x 58.35 = n x 0.082 x 449
173.2995 = n x 36.818
n = 173.2995 / 36.818
n = 4.70 moles
hope this helps!
The amplitude of a wave is most directly related to crest length.
Amplitude means the height of a crest or a trough.
Answer: to find a cure for the common cold to produce insulin for diabetics
Explanation: It has helped many people