Chemistry, 30.01.2020 04:46 rhettperkins

Which of these is an indicator that a chemical reaction has occurred?

a.) precipitate forms

b.) temperature remains the same

c.) color is diluted

d.) mass increases

Answers: 2

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Answer from: maxgeacryne5573

color is diluted

Explanation:

if the color is diluted that means that something is causing a chemical reaction in the substance my dad works with chemicals so I'm really good with them

Answer from: lizzyhearts

color is diluted

Explanation:

if the color is diluted that means that something is causing a chemical reaction in the substance my dad works with chemicals so I'm really good with them

Answer from: sagetpc68741

A.) precipitate forms

Answer from: thedragontale1020

A.) precipitate forms

Answer from: Quest

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.

Answer from: Quest

Ans. : frostbite is when exposure to cold temperatures causes freezing to the skin or other tissues. it most commonly affects the hands, feet, and face. the longer areas are exposed to cold, typically the worse the frostbite. the water temperature used for rewarming a frostbitten part should be : (102 -105) f degrees.

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Which of these is an indicator that a chemical reaction has occurred?

a.) precipitate f...

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