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Citrus2011 [14]
2 years ago
12

How do compounds differ from their component elements? A. Compounds have different numbers of neutrons than their component elem

ents. B. Compounds have different charges than their component elements. C. Compounds have different properties than their component elements. D.Compounds have different masses than the sum of masses of their component elements.
Chemistry
1 answer:
Rudiy272 years ago
6 0
The correct answer is C. Compounds have different properties than their component elements. When compounds are formed, they undergo change resulting to changes in the properties they exhibit. It will have its new set of properties different from the elements.
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Pls help!!! i'll mark you the brainlest
faltersainse [42]
C. Wrong surface type
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3 years ago
A topographical map would be useful for which activity? A. planning a hiking trip B. studying plant growth over time C. studying
amm1812
The answer is A. planning a hiking trip

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A topographical map would not help studying rainfall for one year unless your location was <em>really</em> so high or low that it affected your weather

And most of all, a topographical map would not be useful for planning a cuise across the Atlantic Ocean because the elevation of the sea is zero!

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3 years ago
How does wavelength differ in high and low frequency waves?
Taya2010 [7]
Waves with higher frequencies have shorter wavelengths, and lower frequencies have longer wavelengths
4 0
3 years ago
Read 2 more answers
1. A gas having the following composition is burnt under a boiler with 50% excess air.
jeka94

The composition of the stack gas are :

CH_4= 0.8713

C_3H_8 = 0.0202

CO = 0.107

<h3 /><h3>What is a mole fraction?</h3>

The ratio of the number of moles of one component of a solution or other mixture to the total number of moles representing all of the components.

Assuming 100 g of the stack gas. Calculate the mass of each species in this sample according to their percentages.

Mass of CH_4 : 70% of 100 g = 70 g

Mass of C_3H_8 : 15% of 100 g = 15 g

Mass of CO : 15% of 100 g = 15 g

Now calculate the number of moles of each species:

Number of moles of CH_4 : \frac{70 g}{16.04 g/mol} = 4.3 mole

Number of moles of C_3H_8: \frac{15 g}{144.1 g/mol} = 0.10 mole

Mass of CO : \frac{15 g}{28.01 g/mol} = 0.53 mole

Now to calculate the mole fraction of each we use the formula:

Mole fraction of CH_4: \frac{4.3}{4.935} = 0.8713

Mole fraction of C_3H_8 : \frac{0.10}{4.935} = 0.0202

Mole fraction of CO : \frac{0.53}{4.935} = 0.107

Hence, composition of the stack gas are:

CH_4 = 0.8713

C_3H_8 = 0.0202

CO = 0.107

Learn more about mole fraction here:

brainly.com/question/13135950

#SPJ1

8 0
2 years ago
Select all that apply.
cupoosta [38]

Answer:

B and C

Explanation:

I think the answer correct is C because you never know in what temperature the block of ice is going to melt but if it says select all that apply its possible that B might be useful.

7 0
2 years ago
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