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irakobra [83]
2 years ago
14

Hey! Can someone please help me out?

Chemistry
1 answer:
sertanlavr [38]2 years ago
7 0

Answer:

the answer is b

Explanation:

convection is caused by density differences whereby warm air with less density rise above a heater and sink near a cold wind.

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Hey!!! Chemistry Question about MOLES... Please help...
yulyashka [42]

Answer:

= 13.0 moles O2

Explanation:

1] Given the equation: 2C8H18 + 25 O2 ----> 16CO2 + 18H2O

a. How many moles of oxygen gas are required to make 8.33 moles of carbon dioxide?

8.33 moles CO2 X

25mol O2

16mol CO2

= 13.0 moles O2

6 0
2 years ago
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goldenfox [79]
There are FOUR electrons in the 3p sub-level of sulfur....
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Which observation supports the claim that Earth's plates move?
Contact [7]

Answer:

B)Continents look like they fit together

4 0
2 years ago
What is the empirical formula for the following molecular formula: C10H5O2
Tju [1.3M]

The empirical formula is the same as the molecular formula : C₁₀H₅O₂

<h3>Further explanation</h3>

Given

Molecular formula : C₁₀H₅O₂

Required

The empirical formula

Solution

The empirical formula (EF) is the smallest comparison of atoms of compound forming elements.  

The molecular formula (MF) is a formula that shows the number of atomic elements that make up a compound.  

(empirical formula) n = molecular formula  

<em>(EF)n=MF </em>

(EF)n = C₁₀H₅O₂

If we divide by the number of moles of Oxygen (the smallest) which is 2 then the moles of Hydrogen will be a decimal number (not whole), which is 2.5, then the empirical formula is the same as the molecular formula

4 0
3 years ago
Which of the following is the correct definition of chemical energy?
Anna11 [10]

Answer:

A

Explanation:

energy stored in chemical bonds of molecules

5 0
3 years ago
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