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lisabon 2012 [21]
3 years ago
7

Name the organic molecule

Chemistry
1 answer:
tekilochka [14]3 years ago
6 0

Answer:

hydrocarbons are the answer

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Match the element with its oxidation number (charge).
Angelina_Jolie [31]

Answer:

The answer is in the problem

Explanation:

As general rule of number of oxygen is -2:

O → -2

Alkali metals (Li, Na, K) are always +1

Na → +1

Alkali earth methals (Be, Mg, Ca...) are always +2

Ca → +2

The halogen group (F, Cl, Br...) is always -1

F → -1

The oxidation number of Si (+/- 4)

Aluminium is, usually +3

And to complete the octet rule in nitrogen, 3 electrons are required. That means:

N → -3

8 0
3 years ago
We are learning about oxygen hydrogen and carbon dioxide, and the question is:
Gre4nikov [31]
I believe it is that most oxides are solids other than these three. i hope this helps.
3 0
3 years ago
Explain how the isotopes of an element differ
patriot [66]

Isotopes of an element will contain the same number of protons and electrons but will differ in the number of neutrons they contain. In other words, isotopes have the same atomic number because they are the same element but have a different atomic mass because they contain a different number of neutrons.

8 0
4 years ago
Read 2 more answers
You are analyzing a solid isolated from a reaction and find that its boiling point is over 1000 ∘ C . You dissolve the compound
babymother [125]

Answer:

Sodium iodide NaI  

Magnesium chloride MgCl₂

Explanation:

Silicon dioxide SiO₂ it is not soluble in water, so it can not be recrystallized from water, it is a white solid and the boiling point is 2230 °C. This one is not the unknown solid.

Sodium iodide NaI it is soluble in water, it has a white color and the boiling point is 1304 °C . This can be the unknown solid.

Magnesium chloride MgCl₂ is soluble in water, it have a white color and the boiling point is 1,412 °C . This can be the unknown solid.

Phosphorus tribromide PBr₃ is will start a hydrolysis reaction in water, it is a colorless liquid and it has a boiling point of 173 °C. This one is not the unknown solid.

5 0
3 years ago
What is the empirical formula for a compound containing 50% sulfur and 60% oxygen by mass?
PIT_PIT [208]

Answer:

SO3

Explanation:

7 0
3 years ago
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