1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MaRussiya [10]
2 years ago
15

A sample of CO₂ solid and a sample of CO₂ gas differ in their

Chemistry
1 answer:
Mrac [35]2 years ago
3 0

Answer:

CO2 soild is "Dry Ice".

Explanation:

if the pressure of liquid CO2 is suddenly released is proportion of the liquid will change to the soild state( become dry ice ) and the remainder will revert in gas..

You might be interested in
Please help me I need these answers
Vladimir [108]

Answer:

i am rrly bad at chemistry srry fffdfhdhdgduehgfhfhdhhfhdhdhdhdhdudhd

7 0
2 years ago
What holds the two strands of a DNA molecule together?A. Ionic bonds between negatively and positively charged ionsB. Covalent b
statuscvo [17]

Answer:

D. Hydrogen bonds between complementary base pairs89

Explanation:

A DNA molecule is composed of two long polynucleotide chains made of four types of nucleotide subunits, two purines (adenine and guanine) and two pyrimidines (cytosine and thymine). These nucleotides are joined by covalent bonds forming a phosphate-sugar backbone. <em>These strands are held to one another with hydrogen bonds between the base portions of complementary nucleotides.</em>

I hope you find this information useful and interesting! Good luck!

8 0
3 years ago
The pK1, pK2, and pKR of the amino acid lysine are 2.2, 9.1, and 10.5, respectively. The pK1, pK2, and pKR of the amino acid arg
almond37 [142]

Answer:

pH 9,8 is likely to work best for this separation

Explanation:

Ion exchange chromatography is a chemical process where molecules are separated by affinity to an ion exchange resin. To separate different aminoacids you must use the isoelectric point (That is the pH where the aminoacid will be in its neutral form).

For lysine, PI is:

pH = \frac{1}{2} (9,1+10,5) = 9,8

For arginine:

pH = \frac{1}{2} (9,0+12,5) = 10,75

At pH = 9,8 lysine will be in its neutral form and will not be retain in the column but arginine will be in +1 charge being retained by the ion exchange resin.

Thus, <em>pH 9,8 is likely to work best for this separation</em>

<em></em>

I hope it helps!

5 0
3 years ago
What is the length of the pencil in cm?
Levart [38]

Answer:

16 cm

Explanation:

Because when you look at the ruler, it shows the length  as 16 cm

7 0
2 years ago
What two things combine with oxygen to form ground-level ozone?
STALIN [3.7K]

Answer:

c) NOx and VOC

oxides of nitrogen (NOx) and volatile organic compounds (VOC)

Explanation:

-

4 0
3 years ago
Other questions:
  • What is the mass of 2.3 x 1021 formula units of cobalt(II) bromate?
    7·1 answer
  • Describe the process used to measure out a specific mass of a solid
    11·1 answer
  • M=40g V=31cm^3 what is the density
    9·1 answer
  • Which of the following is considered to be a chemical property of matter?
    11·1 answer
  • All of the following are properties of bases except
    8·2 answers
  • What the other name of atoms?
    7·1 answer
  • Balance this equation.<br> CH4 + _O2 --&gt; _CO2 + _H20
    9·1 answer
  • As an electron in an atom moves from the ground state to the excited state, the electron...?
    9·1 answer
  • What happens when a star dies
    13·2 answers
  • Which of the following sets of quantum numbers refers to a 4p orbital
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!