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
Marina86 [1]
3 years ago
15

I NEED HELP WITH 1-4 PLEASE ASAP!!!

Chemistry
1 answer:
Varvara68 [4.7K]3 years ago
5 0

Answer:

1 is the same    3 is pure substance 4 is different

Explanation:

not sure about 2

You might be interested in
How many oxygen atoms are present in 30g of glucose?
Alex17521 [72]
Jdjejsbdjwwoanwjediekemwmkssk
5 0
3 years ago
Which metals have similar chemical properties? Check all that apply. barium
rodikova [14]
Alkina metals all have the similar proteries
6 0
3 years ago
What color or colors of light are transmitted by a piece of yellow glass?
Artyom0805 [142]

Answer:

So combining blue with yellow light is like combining blue light with red and green light. The result of combining these three primary colors of light is to produce white light.

Explanation:

8 0
3 years ago
Please hep its my last question
atroni [7]

Answer:Noble gases:

 are highly reactive.

 react only with other gases.

 do not appear in the periodic table.

 are not very reactive with other elements.

Explanation:Noble gases:

 are highly reactive.

 react only with other gases.

 do not appear in the periodic table.

 are not very reactive with other elements.

7 0
2 years ago
A gas occupies 12.3 litres at pressure of 40 cm of Hg. What is the volume in ml when the pressure is increased to 600 mm of Hg a
aalyn [17]

Answer:

Good Luck!

Explanation:

4 0
3 years ago
Other questions:
  • The answers please, I can't figure it out. please send the answers to the chart.
    10·1 answer
  • Look at the four positions of Earth with respect to the sun. Florida is in the Northern hemisphere. At what position of Earth wi
    14·1 answer
  • Sodium (chemical symbol Na) is atomic number 11 and is in the first column of the periodic table so it has one valence electron.
    8·2 answers
  • An object accelerates 7.2 m/s2 when a force of 4.0 newtons is applied to it. What is the mass of the object?
    12·1 answer
  • Salt mixed in water is an example of a___
    11·1 answer
  • Which of the following would have the highest average kinetic energy?
    6·1 answer
  • Which statement is TRUE about enzymes?
    9·1 answer
  • Which of the following is in the correct order of boiling points for NaNO₃, CH₃OH, C₂H₆, and Ne?A) Ne < CH₃OH < C₂H₆ <
    10·1 answer
  • How can I differentiate between Ionic compounds, molecular compounds, and acids given only the formula? I need to be able to fin
    13·1 answer
  • What is the purpose of the cell wall?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!