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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.
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How does Controlled fires help prevent real forest fires?
Salsk061 [2.6K]

Answer:

it burns things which would be burned easily by lightning, and then people put the fire out immediately.  If the dried plants that they are lighting on fire are hit by lightning, it can lead to a massive fire without anyone realizing.  

6 0
3 years ago
If you have a gold brick that is 2cm by 3cm by 4cm and has density of 19.3g/cm3, what is its mass?
natulia [17]
Volume = a x a x a  

V = 2 cm x 3 cm x 4 cm => 24 cm³

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4 0
3 years ago
A chemical reaction in which bonds are created is usually associated with ________.
Nikolay [14]

A  reaction in which bonds are created is usually associated with the Release of energy.

What are the various types of bonds?

There are three sorts of bonds:

1. Electrovalent or  electrovalent bond

2.  chemical bond

3.  dative bond

Electrovalent or electrovalent bond are formed when one or more electrons are transferred from one atom to another.

Covalent bonds are formed when the atoms during a  molecule share an equal number of electrons.

A dative bond is one in which both electrons in a shared pair come from the same atom.

Now, atoms tend to stabilize once they form chemical bonds, releasing energy within the process. Energy is released because there's a higher level of stability associated with a low energy level.

Hence, a  reaction in which bonds are created is usually associated with the release of energy.

To know more about chemical bonds go to the given link:

brainly.com/question/20584851

#SPJ4

4 0
1 year ago
JCJJISULIJ
ANEK [815]
Parietal love
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3 0
3 years ago
GIVING BRAINLIEST!!!!!!!!
Arte-miy333 [17]

Answer:

It can't be done.

Explanation:

If you have only 5.4 g of oxygen, the most lithium oxide you can get is 7.7 g.

Only 2.3 g of lithium will react. and the other 22.3 g of lithium will not be used.

7 0
3 years ago
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