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
Vika [28.1K]
4 years ago
7

Matter can be pure or mixed

Chemistry
1 answer:
dimaraw [331]4 years ago
3 0

Matter can be pure, or it can be two or more substances mixed together.

is that what you need?

brainliest please?


You might be interested in
Do H, K, Rb, Fr, have the same number of valence electrons or same number of energy levels
julsineya [31]

Answer:

Same number of valance electrons

Explanation:

All of them are in group 1 so they have 1 valance electron.

If they were in same period they would have same number of energy levels.

5 0
4 years ago
Explain what WHMIS is
White raven [17]
Workplace Hazardous Materials Information System is the answer to this question. Hope it helps :)
7 0
4 years ago
When the equation Fe +Cl2 FeCl3 → is balanced, what isthe coefficient for Cl2?
mixas84 [53]

Answer: Option (c) is the correct answer.

Explanation:

The given reaction is as follows.

    Fe + Cl_{2} \rightarrow FeCl_{3}

Number of atoms on reactant side are as follows.

  • Fe = 1
  • Cl = 2

Number of atoms on product side are as follows.

  • Fe = 1
  • Cl = 3

To balance the given equation, we multiply Fe by 2 and Cl_{2} by 3 on the reactant side. Therefore, the balanced chemical equation will be as follows.

           2Fe + 3Cl_{2} \rightarrow FeCl_{3}

Thus, the coefficient of Cl_{2} is 3.

7 0
4 years ago
Read 2 more answers
A marshmallow has an initial volume of 0.027 L at standard pressure (1.0 atm). If the marshmallow is placed in a vacuum chamber
MatroZZZ [7]

Answer:

The pressure inside the chamber is 0.132 atm

Explanation:

Step 1: Data given

The initial volume = 0.027 L

The initial pressure = 1.0 atm

The volume changes to 0.205 L

Step 2: Calculate the pressure

P1*V1 = P2*V2

⇒with P1 = the initial pressure = 1.0 atm

⇒with V1 = the initial volume = 0.027 L

⇒with P2 = the changed pressure = TO BE DETERMINED

⇒with V2 = the changed volume = 0.205 L

1.0 atm *0.027 L = P2*0.205 L

P2 = 0.027/0.205

P2 = 0.132 atm

The pressure inside the chamber is 0.132 atm

6 0
4 years ago
How does changing the volume or temperature of a gas affect the pressure of that gas?
Masja [62]

Answer:

When a gas occupies a smaller volume, it exerts a higher pressure; when it occupies a larger volume, it exerts a lower pressure (assuming the amount of gas and the temperature do not change). Since P and V are inversely proportional, a graph of 1/P vs. V is linear.

Explanation:

<h2><u><em>This is all I know.</em></u></h2><h2><u><em>Hope it helps~</em></u></h2><h2><u><em>Good luck with your work!!~</em></u></h2>
6 0
3 years ago
Other questions:
  • How many moles are In 30 grams of H2O
    6·2 answers
  • A device for measuring atmospheric pressure is a _____.
    6·1 answer
  • A 3.4 g sample of sodium hydrogen carbonate is added to a solution of acetic acid weighing 10.9 g. The two substances react, rel
    7·1 answer
  • During World War II, a portable source of hydrogen gas was needed for weather balloons, and solid metal hydrides were the most c
    15·1 answer
  • Which statements describe how heat flows in foil?
    12·2 answers
  • How many moles of no are produced from a reaction if it’s mass is 2.05
    6·2 answers
  • ASAP ILL GIVE BRAINLIEST ! IF YOU CAN ANSWER AT LEAST ONE TY
    8·1 answer
  • Help asap plz thank you!
    7·2 answers
  • The first chemical equation was designed by
    9·1 answer
  • Please help me with this chemistry
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!