How do molecules in a solid differ from those in a liquid or gas

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Answer 1

Answer: Molecules in solids are packed a lot closer together than molecules in liquids and gases, so there is far less space between solid particles. Because of this, solid particles cannot move around quickly and freely like liquids and gases, instead they only vibrate so are fairly 'locked' into the same place, so solids have fixed volume and space.

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Which is an example of chemical weathering?

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Acid rain raining on rocks and breaking it down from the reaction of the chemicals.

I found a type of rock in the woods it's kinda rough black with some purple like a lavender purple and i can break it into pieces what could it be?

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It could be a lump of coal.
Since you can break pieces off, maybe charcoal ... the real thing, not a "briquet".
Do your hands get all black when you handle it ?

Elements from which two families would most likely combine with each other to create salts?

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Also could be an alkali metal (such as Na) and a halogen (such as Cl)

Metals and non metals

Ethanol and dimethyl ether have different chemical and physical properties because they have different(1) functional groups
(2) molecular masses
(3) numbers of covalent bonds
(4) percent compositions by mass

Answers

Answer: (1) functional groups

Explanation:

The compounds having similar molecular formula but different arrangement of atoms or groups in space are called isomers and the phenomenon is called as isomerism.

Functional groups are specific group of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules.

Dimethyl ether $(CH_3OCH_3)$ and ethanol $(C_2H_5OH)$ are functional isomers which have same molecular formula but different functional groups attached and thus have different physical and chemical properties.

They have same number of atoms and thus have similar molecular mass of 46 and same percent composition by mass. The number of covalent bonds are 8 in both compounds.

Ethanol and Dimethyl Ether have different functional groups due to the earlier being an Alcohol with functional group (COOH) and the latter an Ether with functional group (R-- O --R). This is the reason why they are chemically and physically different compounds.

(Option 1)

Why are milk powder tins and salmon tins coated with tin (Sn) metal? Give reasons based on the reactivity series of the metals.Urgent!!

Answers

the tin in reactivity arrangement implies more receptive than tin and can respond with food components protected in it

Determine the percent yield for the reaction between 46.5 g of ZnS and 13.3 g of oxygen if 18.l4 g of ZnO is recovered along with an unknown quantity of sulfur
dioxide.
please show work thank you