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
Makovka662 [10]
3 years ago
13

Suppose you have a container filled with iron and sand. You can separate the iron from the sand if you ____________ so this is a

Chemistry
1 answer:
irinina [24]3 years ago
4 0

Answer:

Use a magnet; Mixture

Explanation:

Suppose you have a container filled with iron and sand. You can separate the iron from the sand if you use a magnet so this is a mixture.

  • A mixture is made up of two more components that are not chemically combined.
  • Mixtures may be classified as homogeneous when the components are in the same phase or heterogeneous when the components are in different phases.
  • A mixture of sand and iron is an example of solid-solid mixture which can be separated using a magnet.
  • The magnet will attract the iron in the mixture leaving the sand.
You might be interested in
Is 2AI + 3O2 = 2AI2O3 balanced or unbalanced
Rudik [331]
Balanced there are 2 Al, 6 oxygens on both sides.
7 0
3 years ago
HELPPPP PLEASEEE
Igoryamba
Atomic mass is the answer!!
Explanation: An elements atomic number won’t be able to change
6 0
3 years ago
The blank
Alik [6]
I think it’s “number” and “type”
5 0
3 years ago
Which type of compounds are likely to be nonconductors in their solid forms but conductors when they are mixed with water
Blizzard [7]
Ionic compounds. because when in solid form they are held firmly in place therefore they cannot move to conduct electric current.
8 0
3 years ago
When methanol, CH 3 OH , is burned in the presence of oxygen gas, O 2 , a large amount of heat energy is released. For this reas
luda_lava [24]

<u>Answer:</u> The mass of methanol that must be burned is 24.34 grams

<u>Explanation:</u>

We are given:

Amount of heat produced = 581 kJ

For the given chemical equation:

CH_3OH(g)+\frac{3}{2}O_2(g)\rightarrow CO_2(g)+2H_2O(l);\Delta H=-764kJ

By Stoichiometry of the reaction:

When 764 kJ of heat is produced, the amount of methanol reacted is 1 mole

So, when 581 kJ of heat will be produced, the amount of methanol reacted will be = \frac{1}{764}\times 581=0.7605mol

To calculate mass for given number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Moles of methanol = 0.7605 moles

Molar mass of methanol = 32 g/mol

Putting values in above equation, we get:

0.7605mol=\frac{\text{Mass of methanol}}{32g/mol}\\\\\text{Mass of methanol}=(0.7605mol\times 32g/mol)=24.34g

Hence, the mass of methanol that must be burned is 24.34 grams

4 0
3 years ago
Other questions:
  • Which of the following is a mixture? steel water oxygen gold
    12·2 answers
  • Arab cultures charted planets in the Dark Ages. Europeans helped establish the Sun-centered model of the solar system during the
    14·1 answer
  • The nighttime and daytime temperatures on Mercury are 13 K and 683 K respectively. The melting point and boiling point of sulfur
    7·1 answer
  • Can anyone do balance equation?
    13·1 answer
  • Which energy stored between plates of capacitor?
    13·1 answer
  • Denver constructs an electric bell as shown in the diagram below.
    9·1 answer
  • Which of the following is true about electrostatic forces? Check all that are true:
    11·1 answer
  • Number of
    15·1 answer
  • What can do ,when the solution remain in the jet/ nozzle of the pipette?​
    13·1 answer
  • The net charge of an ionic compound is
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!