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
andrezito [222]
3 years ago
12

Which type of combination is a mixture?

Chemistry
1 answer:
DochEvi [55]3 years ago
8 0

Answer:

C.  physical

Explanation:

A mixture is a physical combination. Mixtures are combinations of compounds and molecules without any chemical reaction taking place.

Mixtures have the following properties:

  • They have an indefinite composition i.e they consist of two or more elements and or compounds in any proportion by mass
  • Their constituents retains their identities i. e physical property is retained.
  • Their constituents reacts differently to changed conditions.
  • They are easily separated into constituents by physical methods
You might be interested in
Is the formation of acid rain an exothermic or endothermic reaction?
Monica [59]
It is an exothermic reaction
4 0
3 years ago
What do the subscripts mean in a molecular formula ?​
horsena [70]

Answer:

A molecular formula tells us what atoms and how many of each type of atom are present in a molecule.

Explanation:

If only one atom of a specific type is present, no subscript is used.

For atoms that have two or more present, a subscript is written after the symbol for that atom.

Molecular formulas do not indicate how the atoms are arranged in the molecule.

- Hope this helps! -blazetoxic123

3 0
3 years ago
Read 2 more answers
How many milligrams of magnesium reacts with excess HCl to produce 31.2 mL of hydrogen gas at 754 Torr and 25.0℃.
Ivanshal [37]

Answer:

There will react 30.9 milligrams of magnesium

Explanation:

Step 1: Data given

Volume of hydrogen = 31.2 mL

Pressure = 754 torr = 754/760 = 0.992 atm

Temperature = 25.0 °C = 298 Kelvin

Step 2: The balanced equation

Mg + 2HCl → MgCl2 + H2

Step 3: Calculate moles of H2

p*V = n*R*T

⇒ with p = the pressure of H2 = 0.992 atm

⇒with V = the volume of H2 = 31.2 mL = 0.0312 L

⇒ with n = the moles of H2 = TO BE DETERMINED

⇒ with R = the gas constant = 0.08206 L*atm/K*mol

⇒ with T= the temperature = 25.0 °C = 298 Kelvin

n = (p*V)/(R*T)

n = (0.992*0.0312)/(0.08206*298)

n = 0.00127 moles

Step 4: Calculate moles of Mg

For 1 mol of Mg we need 2 moles of HCl to produce 1 mol of MgCl2 and 1 mol of H2

For 0.00127 moles of H2 we need 0.00127 moles of Mg

Step 5: Calculate mass of Mg

Mass of Mg = moles of Mg * molar mass of Mg

Mass of Mg = 0.00127 moles * 24.3 g/mol

Mass of Mg = 0.0309 grams = 30.9 mg of Mg

There will react 30.9 milligrams of magnesium

3 0
3 years ago
A reaction mixture, in an organic solvent, contains an organic acid, an organic base, neutral organic compounds, and base contai
zheka24 [161]

Answer: option b. Neutral organic compounds

Explanation:

3 0
3 years ago
Fatima is designing an advanced graphics card for a next-generation video game system. She needs to be able to precisely control
Salsk061 [2.6K]

Answer:svbehsbss c

Explanation:

D xxxx

8 0
2 years ago
Other questions:
  • Suppose you are measuring the mass of a sample using a balance that employs a standard mass of density dw = 8.0 g/ml. what is th
    7·1 answer
  • Which scientist was the first to propose that atomic structure contains electrons?
    6·1 answer
  • Please Help!!
    14·2 answers
  • When 11.12 g of neon is combined in a 100 L container at 80oC with 9.59 g of argon, what is the mole fraction of argon?
    6·1 answer
  • The solvent was propanone. Which of the three basic colours is most soluble in propanone?​
    7·1 answer
  • Which hypothesis is testable using a scientific experiment? O A. Ancient people liked iron tools better than copper tools. O B.
    5·1 answer
  • If 8.500 g CH is burned and the heat produced from the burning is added to 5691 g of water at 21 °C, what is the final
    11·1 answer
  • 1.
    9·1 answer
  • 10. How many molecules are contained in 5.6 L of H2 at STP?
    7·1 answer
  • An ideal gas at 20 degrees centigrade has a volume of 12 liters and a pressure of 15 atmospheres. Its temperature is raised to 3
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!