3 years ago

What's difference between "formula unit" and "molecule" ?

1 answer:

6 0

The difference between "formula unit" and "molecule" lies in the fact that a molecule is made up of two or more elements that are bonded covalently while a formula nit represents the lowest whole number ratio of ions in an ionic compound which makes it applicable only to ionic substances.

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On September 23 The earths axis is tilted which way?

Mariana [72]

Answer:

The earth is tilted so its perpendicular

Explanation:

Because its straight up and down

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3 years ago

1. What mass of Mgo will I make from 48 g of Mg? 2Mg + O2 + 2MgO

statuscvo [17]

Answer:

80.6 g

Explanation:

MgO=24.3+16=40.3 g

48.6/24.3= 2 moles

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3 years ago

A set of headphones produces sounds that cancel out sound waves from the

Basile [38]

Answer:

C. Destructive interference

Explanation:

Destructive interference is when there are two waves with the same frequency, and the peaks of one wave (the highest points) line up with the valleys (the lowest points) of the second one.

Constructive interference would cause the sound to be louder.

Absorption and reflection are interactions that would not take into account the fact that the headphones produce sounds.

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3 years ago

During lab, you measured the heat of reaction by mixing solutions of FeCl3 and NaOH.

Kobotan [32]

Explanation:

pls, refer to the above picture, i hope you will find it helpful.