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garri49 [273]
3 years ago
14

Help plz! its a science question

Chemistry
2 answers:
vesna_86 [32]3 years ago
8 0

i dont know nothing about salt but all i know is that your eyes are super beautiful

Tresset [83]3 years ago
3 0

Iron fillings can be separated as they are magnetic. Use a magnet to separate the iron fillings away.

Salt can be separated away as they are soluble in water.

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An element X that has 15 protons and 15 electrons, loses three
Wewaii [24]

Answer:

+3

12 electrons and 15 protons.

Explanation:

The element having 15 electrons and 15 protons have atomic number 15. We know that when an atom lose or gain the electron ions are formed.

Anion formation:

Anion is formed when electron is accept by an atom.

X + e⁻ → X⁻

Cation formation:

Cation is formed when electron lose be an atom.

X → X⁺ + e⁻

The given atom loses 3 electrons thus oxidation number will be +3 and cation is formed.

X → X³⁺ + 3e⁻

Now element X have 15 protons and 12 electrons.

8 0
3 years ago
What is the pH of a solution when the [OH - ] = 1 x 10 -3
dsp73

Answer:

The pH is 11

Explanation:

Because pH + pOH = 14

and pOH = - log [OH⁻] = - log (1 x 10⁻³) = 3

we can now calculate pH by manipulating equation one above

pH = 14 - pOH = 14 - 3 = 11

Thus the pH of the solution is 11

8 0
3 years ago
Is it easy for gallium to change from solid to liquid? Why<br> subject is science
Alekssandra [29.7K]

Answer:

Solid gallium is a blue-gray metal with orthorhombic crystalline structure; very pure gallium has a stunning silvery color. Gallium is solid at normal room temperatures, but as well as mercury, cesium, and rubidium it becomes liquid when heated slightly

Explanation:

gallium is like water it freezes to turn solid!

...or like Bruce lee get it?

5 0
3 years ago
The diagram below shows the atoms involved in forming table salt. Which statement best describes what happens next ?
Ghella [55]

An ionic compound is composed of ionic bonds that are formed by transfer of electrons from one atom to the other. The atom that loses electrons acquires a positive charge (cation) while that which gains electrons acquires a negative charge.

In the case of sodium chloride; Sodium Na has 1 electron in its outer orbital while Chlorine Cl has 7 electrons. Thus, Cl requires 1 electron to complete its octet. This electron is donated by Na.

Thus, NaCl is essentially, Na⁺Cl⁻

Ans D) Chlorine becomes an anion by gaining an electron from sodium

5 0
3 years ago
Read 2 more answers
What is the electron configuration for lithium​
Oduvanchick [21]

Answer:

2,1

Explanation:

4 0
2 years ago
Read 2 more answers
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