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3 years ago

Use the IUPAC nomenclature rules to give the name for this compound - SiO2

2 answers:

8 0

The compound in IUPAC nomenclature is called Silicon dioxide. It <span> is a chemical compound that is an oxide of silicon with the chemical formula SiO₂. It has been known since ancient times. Hope this answers the question. Have a nice day.</span>

lana [24]3 years ago

3 0

Answer: Name of the given compound $SiO_2$ is silicon dioxide.

Explanation:

Write the name of the cation first. Just write the name of an element which is present as a cation.
Then write the name the anion. The name of the anion is written as name of the element followed by suffix 'ide' in the end.
If more than one number of anion is present in the compound then use prefixes as 'mono' for 1 , 'di' for 2 , 'tri' for 3 and so on.

$SiO_2$ have silicon as cation and two oxygen atom as as anion .So, the name of the of the given compound $SiO_2$ is silicon dioxide.

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Find the magnitude of the sum of two vectors; A is 5 km , and B is 7 , when the angle btween them is 120

Dimas [21]

Answer: 6.24 km

Explanation:

Given

The magnitude of the first vector(say) $\left | a\right |=5\ km$

the magnitude of the second vector(say) $\left | b\right |=7\ km$

the angle between them is $120^{\circ}$

The resultant vector magnitude is given by

$\left | \vec{R}\right |=\sqrt{a^2+b^2+2ab\cos \theta}$

$\left | \vec{R}\right |=\sqrt{5^2+7^2+2\times 5\times 7\cdot \cos 120^{\circ}}\\\left | \vec{R}\right |=\sqrt{74-35}=\sqrt{39}\\\left | \vec{R}\right |=6.24\ km$

4 0

2 years ago

What does atomic motion mean?

vaieri [72.5K]

Atomic Motion definition: Atomic motion is the continual movement of atoms and molecules that are contained within everything in the universe.

5 0

3 years ago

From a vantage point very close to the track at a stock car race, you hear the sound emitted by a moving car. You detect a frequ

V125BC [204]

Answer:

55.8 m/s

Explanation:

$f$ = Actual frequency of sound emitted by car

$f'$ = frequency observed when the car moves = $(0.86)f$

$V$ = Speed of sound = 343 m/s

$v$ = Speed of car

Frequency observed is given as

$f' = \frac{Vf}{V+v}$

$(0.86) = \frac{(343)}{343 + v}\\(0.86) = \frac{(343)}{343 + v}\\294.98 + (0.86) v = 343 \\v = 55.8 ms^{-1}$

6 0

3 years ago

The power of a purely resistive lead is always positive although the current and voltage are sometimes negative. explain

pickupchik [31]

Answer:

Current is in phase with voltage in a resistive circuit. Note that the wave form for power is always positive, never negative for this resistive circuit. This means that power is always being dissipated by the resistive load, and never returned to the source as it is with reactive loads.Explanation:

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2 years ago

If a girl is standing still and holding a box, is she doing any work? Why or why not?

sukhopar [10]

I beleive she isnt doing any work due to holding the box motionless, you must be exerting a force in the direction of the box motion. If she is just standing there holding the box their isn't no work becuase no distance has been covered. work = force = distance.

7 0

3 years ago

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