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Anit [1.1K]
3 years ago
6

A pure substance is found to have an empirical formula of CH and a molar mass of 78.114 grams. What is the molecular formula of

this substance?
Chemistry
1 answer:
harkovskaia [24]3 years ago
7 0

Answer:

Explanation:

Skamn jeksk

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The mass of Jupiter is 300 times the mass of the earth. Jupiter orbits the sun with Jupiter = 11.9 yr in an orbit with Jupiter =
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The momentum of this throw being greater the Earth's orbit would have been more elliptical or it might have been completely ejected from the solar system forever. The Earth's orbit defines a two-dimensional plane called the Ecliptic. It takes about 365 days for the earth to revolve around the sun. After years of analysis, Kepler found that Mars' orbit was likely elliptical, with the Sun at one of his focal points of the ellipse. This led Kepler to discover that all planets orbit the Sun in elliptical orbits and that the Sun is at one of his two focal points.

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8 0
1 year ago
Which family in the periodic table has metals that are usually harder than other metals? Alkali metals Alkaline earth metals Lan
stealth61 [152]

Answer:

The correct answer is "Alkaline earth metals".

Explanation:

Alkaline earth metals are a group of elements that are located in group 2 of the periodic table. They are harder than alkaline metals, have brightness and are good electrical conductors. Hardness is the degree of scratch resistance a material offers.

Have a nice day!

3 0
3 years ago
Help I do not understand.
EastWind [94]

Answer:

158.5g Zn are produced

Explanation:

To solve this question we have to find the moles of Aluminium. With the moles of Aluminium and the balanced reaction we can find the moles of Zn and its mass as follows:

<em>Moles Al -Molar mass: 26.98g/mol</em>

43.6g Al* (1mol/26.98g) = 1.616 moles Al

<em>Moles Zn:</em>

1.616 moles Al * (3mol Zn / 2mol Al) =

2.424 moles Zn are produced

<em>Mass Zn -Molar mass: 65.38g/mol-</em>

2.424 moles Zn * (65.38g / mol) =

<h3>158.5g Zn are produced</h3>
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3 years ago
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