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kogti [31]
3 years ago
11

Consider the terms elements, compounds, and mixtures. What do you think each of these is?

Chemistry
1 answer:
Tcecarenko [31]3 years ago
4 0

Answer:

Explanation:

Element -

It is the basic unit of matter, which cannot be broken down into substances by any way but can be combined to form new substances.

It is a pure substance.

It classifies into metals, non-metals, metalloids and noble gases.

Example - Hydrogen, Carbon, Oxygen

Compounds -

It is a combination of two or more elements.

It is a pure substance.

Through chemical reactions, they can be broken down into metals.

Example - Water, Carbon dioxide

Mixtures -

It is a combination of two or more elements or compounds or both.

The substances combined in a mixture are in a particular ratio.

Example - Chalk powder, Washing Soda

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How does heating or cooling a substance help demonstrate the law of conservation of matter? PLS I NEED HELP ASAP ILL GIVE 5 STAR
I am Lyosha [343]

Answer:

It can help change it's form.

Explanation:

The law of conservation of matter or mass, states that matter is neither created nor destroyed. But, you can change the form of matter based o Physical and/ or Chemical changes.

Let's take water as an example.  Water is a liquid, but you can always change water into a gaseous or solid form by using heat or cooling methods. When you heat water, the molecules move faster to make it form into a gas form...... You don't change it chemically, but physically. Same as the cooling process, only this time you are changing it into a solid.

Hope this helps :D

7 0
3 years ago
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What are the intervals on the fahrenheit scale called
Darya [45]

Fahrenheit temperature scale fâr´ənhīt˝ [key], temperature scale in which the temperature difference between two reference temperatures, the melting and boiling points of water, is divided into 180 equal intervals called degrees.

4 0
3 years ago
Determine the empirical formula for a compound that contains c, h and o. it contains 52.14% c and 34.73% o by mass.
Travka [436]
H %= 100- (52.14 + 34. 73) equals 13.13 %
Assuming 100 g of this compound
Mass H= 13.13 g
Moles H= 13.13 g ÷ 1.008g/ moles= 13

Mass C= 52.14 g
Moles C= 52.14 g ÷ 12.011 g/ moles= 4

The empirical formula is C4H1302
3 0
4 years ago
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• Write the chemical formulae of the following:-
a_sh-v [17]

The chemical formulae of the given compounds are as follows:

  • Magnesium chloride: MgCl₂
  • Aluminium chloride: AlCl₃
  • Calcium oxide: CaO
  • Calcium carbonate: CaCO₃
  • Copper nitrate: Cu(NO₃)₂

<h3>Chemical formulae</h3>

A chemical formulae a set of chemical symbols showing the elements present in a compound and their relative proportions in that chemical compound.

The information provided by a chemical formula include:

  • The atoms of elements present in the compound
  • The ratio in which the elements are combined in the compound
  • The state in which the compound occurs

The chemical formulae of the given compounds are as follows:

  • Magnesium chloride: MgCl₂
  • Aluminium chloride: AlCl₃
  • Calcium oxide: CaO
  • Calcium carbonate: CaCO₃
  • Copper nitrate: Cu(NO₃)₂

Learn more about chemical formulae at: brainly.com/question/8007130

6 0
3 years ago
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Which of the samples pictured is most likely a nonmetal?
max2010maxim [7]

Answer:

you need to be more specific

try adding a picture of the samples

Explanation:

7 0
3 years ago
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