CHEMISTRY MIDDLE SCHOOL

A 500 gram piece of metal has a volume of 2.75cm3 what is the density

Answers

Answer 1
Answer:

Answer: 181.82\ g/cm^3

Explanation:

Given that the volume of a piece of metal = 2.75\ cm^3

Mass of piece of metal= 500 g

Formula to calculate the density is given by :-

\text{Density}=\frac{\text{Mass}}{\text{Volume}}

Then, the density of piece of metal is given by :-

\text{Density of piece of metal}=(500)/(2.75)\n\n\Rightarrow\ \text{Density}=181.818181818\approx181.82\ g/cm^3  [Rounded to the nearest two decimal places.]

Hence, its density of piece of metal= 181.82\ g/cm^3
Answer 2
Answer: density is mass / volume so it is 500 / 2.75=181.82 g/cm3

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PLEASE HELP ME WITH MY HOMEWORK!!!!3.Which state of matter expands the MOST on heating?
a)Solid
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c)Gas
d)Metals
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What is anything that has mass and volume

Answers

The mass and volume are thephysical properties that define matter. A matter is anything that can be seen or touched and is said to have mass, volume, density, and occupies space.

What is the matter?

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Therefore, the matter is said to have volume and mass.

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Matter is what makes up all of the objects and living organisms in the universe. Anything that has mass takes up space. 

Compared to the physical and chemical properties of the compound NO2 the compound N2O has(1) different physical properties and different chemical properties

(2) different physical properties and the same chemical properties

(3) the same physical properties and different chemical properties

(4) the same physical properties and the same chemical properties

Answers

Answer: option (1) different physical properties and different chemical properties.


Justification:


1) Any chemical compound has its unique physical and chemical properties.


2) Although formed by the same elements, N and O, NO₂ and N₂O are different compounds, so each will have its proper physical and chemical properties.


3) The union of the atoms by chemical bonds confere the properties to a matter, so being the bonds in N₂O different to the bonds in N₂O means they are different compounds.

Is an elements reactivity determined by the number of protons found in an atom of the element

Answers

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Answers

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