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Travka [436]
3 years ago
14

A "half-reaction” is one which may:

Chemistry
1 answer:
DaniilM [7]3 years ago
8 0

Answer:

d

Explanation:

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Which is the correct name of a compound that is formed by Si and O? silicon dioxide silicon trioxygen disilicon dioxygen monosil
Flauer [41]

The correct is tricky, be careful. The right is silicon dioxyde (SiO2)

Silicon Oxides are written in the form SiOx, (0 <x <2), so:

there is no silicon trioxygen and disilicon dioxygen.

SiO is called silicon monoxide and not monosiicon oxygen, so this proposition is false.

All that remains is the silicon dioxide (SiO2) that is written correctly.

Silicon dioxide can be synthesized but also exists in abundance in nature. Silicon (Si) represents about 26% of the Earth's crust. Silica (SiO2), the natural form of silicon dioxide, accounts for about 60%.

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3 years ago
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I need help ASAP 10 points
jekas [21]

Answer:

the sun beams down on the pool and heats it up top to bottom the deeper the colder

4 0
3 years ago
The group number tells you how many valence electrons are located in an atom. *<br> True<br> False
Debora [2.8K]

Answer:

true

Explanation:

6 0
3 years ago
An element X on reacting with oxygen forms an oxide X2O. this oxide dissolves in water and turns blue litmus red. a) Identify th
galben [10]

Answer:

The unknown element is Carbon.

(a) X is Carbon, its oxide is of acidic nature

(b) C+ O2 → CO2

Explanation:

We are given an unknown element that reacts with oxygen.

X + O2 → XO2

It is given that the oxide XO2 turns blue litmus red which is shown by acids, so XO2 is an acidic oxide. Also X will be a Non metal because Non metallic oxide is Acidic in nature.

The Oxide XO2 is dissolving is water. The oxide upon reacting with water will give an Acid.

XO2 type of oxide is found in the 14th group of the periodic table generally

So we have options like C, Si and Ge as these only have the Acidic oxide.

But when it comes to reactivity with water Only Carbon satisfies the need so the unknown element X is C.

CO2 + H2O → H2CO3 which is an acid.

(a) Element X is Carbon (C), The nature of the compound formed is Acidic.

(b) The reaction given will be as follows

     C+ O2 → CO2

Therefore the unknown element is Carbon.

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3 years ago
Which of these time measurements is the smallest? 0.02 seconds, 0.02 teraseconds, 2,500 milliseconds, 25,000 nanoseconds
VladimirAG [237]
25,000 nanoseconds :)))
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4 years ago
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