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Anna11 [10]
2 years ago
6

What is metal ? Where does it coke from ?

Chemistry
2 answers:
DerKrebs [107]2 years ago
8 0

a metal is an element that readily forms positive ions (cations) and has metallic bonds

coke is a strong stimulant made from coca leaves

aleksandrvk [35]2 years ago
5 0

Answer:

  • Most pure metals, like aluminium, silver and copper, come from the Earth's crust.
  • They are found in ores – solid materials called minerals, usually occurring in rock, from which the pure metal has to be extracted.
  • The properties of pure metals can be improved by mixing them with other metals to make alloys.

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How do you distinguish a chemical change from a physical change
kirill [66]

Answer:

One distinguishing feature between physical and chemical changes is that a physical change can be reverse or turn back to its original form, but chemical change cannot be return to its form because the material change.

Explanation:

7 0
3 years ago
How many protons does one atom of sulfur have
mrs_skeptik [129]

Answer:

16

Explanation:

The proton number is always the number in the corner of the box on a periodic table

6 0
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Read 2 more answers
Two children on a seesaw are able to balance perfectly while on Earth.would they still be balanced if you saw was brought to the
Setler [38]

Answer:

C

Explanation:

Because on the moon you are basically weightless and your mass would stay the same

3 0
3 years ago
A sample of water vapor has a volume of 3.15 L, a pressure of 2.40 atm, and a temperature of 325 K. What is the new temperature,
lara31 [8.8K]

Answer:

The answer to your question is:   T2 = 235.44 °K

Explanation:

Data

V1 = 3.15 L                    V2 = 2.78 L

P1 = 2.40 atm               P2 = 1.97 atm

T1 = 325°K                    T2 = ?

Formula

\frac{P1V1}{T1} = \frac{P2V2}{T2}

Process

            T2 = (P2V2T1) / (P1V1)

            T2 = (1.97x 2.78x 325) / (2.40 x 3.15)

            T2 = 1779.895 / 7.56

            T2 = 235.44 °K

4 0
2 years ago
Electrolysis can be used for all of the following, except A. separating metals from ores. B. plating objects with metal coatings
NemiM [27]

The answer is D. recharging batteries.

6 0
3 years ago
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