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3 years ago

Mercury orbits the sun at more than ten times the sun speed of Neptune

Chemistry

1 answer:

marysya [2.9K]3 years ago

8 0

Answer: Yes, this is true.

Explanation: It only takes 88 days for Mercury to orbit around the sun. No other planet travels around the sun faster.

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A 16 gram sample of O2(g) fills a container at STP.<br> What volume is the container?

sergij07 [2.7K]

Answer:

V = 11.2 L

Explanation:

Hello there!

In this case, according to the ideal gas equation:

$PV=nRT$

It is possible to compute the volume as shown below:

$V=\frac{nRT}{P}$

Whereas the moles are computed are computed given the mass and molar mass of oxygen:

$n=16g*\frac{1mol}{32g} =0.5mol$

Now, since the STP stands for a temperature of 273.15 K and a pressure of 1 atm, the resulting volume is:

$V=\frac{0.5mol*0.08206\frac{atm*L}{mol*K}*273.15K}{1atm}\\\\V=11.2L$

Best regards!

8 0

3 years ago

Consider the hydrocarbon below.

Ket [755]

It is an Alkene because it has a double bond, so it’ll have “ene” at the end. The simplest Alkene has 2 carbons.

2 carbons = “eth”

Look at that! Two carbons! It must be “ethene”

4 0

4 years ago

Read 2 more answers

What are the products of the balanced equation for the combustion of C8H17OH ?

erastova [34]

C8H17OH + 12O2 —> 8CO2 + 9H2O

3 0

3 years ago

According to vsepr theory, a molecule with the general formula ax4e2 will have a _____ molecular shape. easynotes

Lena [83]

According to Vsepr theory, a molecule with the general formula ax4e2 will have a square planar molecular shape.The molecule of this geometry has their atoms which are positioned at the corners of the square on the same plan about a central atom.

7 0

3 years ago

You carefully weigh out 16.00 g of CaCO3 powder and add it to 64.80 g of HCl solution. You notice bubbles as a reaction takes pl

bulgar [2K]

Answer: Mass of $CO_2$ produced in this reaction was 6.56 grams

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

$CaCO_3(s)+2HCl(aq)\rightarrow H_2O(l)+CO_2(g)+CaCl_2(aq)$

Mass or reactants = Mass of $CaCO_3$ + mass of $HCl$ = 16.00 + 64.80 = 80.80 g

Mass of products = mass of aqueous solution + mass of $CO_2$ + = 74.24 + x g

Mass or reactants = Mass of products

80.80 g = 74.24 + x g

x = 6.56 g

Thus mass of $CO_2$ produced in this reaction was 6.56 grams

7 0

4 years ago