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Monica [59]
3 years ago
12

What's that mean phantom?

Chemistry
1 answer:
VARVARA [1.3K]3 years ago
4 0
Here is the definition of phantom:

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True or False: Electrons in each lower level are filled before electrons fill
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the answer is 1....true

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3 years ago
One disadvantage of burning propane (C3H8) is that carbon dioxide is one of the products. The released CO2 increases the growing
Hoochie [10]

Answer:

80 MOLES OF WATER ARE PRODUCED WHEN 20 MOLES OF PROPANE ARE BURNED IN EXCESS OXYGEN ON A GAS GRILL.

Explanation:

Equation for the reaction:

C3H8 + 5 O2 --------->  4 H2O + 3 CO2 + Heat

The above equation is in the presence of excess oxygen.

In this reaction,

1 mole of propane forms 4 moles of H2O

If 20 moles of propane were to be used, how many moles of water will be produced?

1 mole of propane = 4 moles of water

20 moles of propane = ( 4 * 20 ) moles of water

= 80 moles of water.

So, if 20 moles of propane were burned in excess oxygen, 80 moles of water will be formed. Propane is heavier than air and when properly combusted produces a large amount of heat. It is also non toxic.

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Most radiation exposure comes from A. consumer products. B. nuclear medicine. C. medical X-rays. D. natural sources.
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The answer is B) nuclear medicine
5 0
3 years ago
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He partial lewis structure that follows is for a hydrocarbon molecule. in the full lewis structure, each carbon atom satisfies t
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Answer:

Four (4) hydrogen atoms

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3 years ago
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A laboratory experiment requires 4.8 l of a 2.5 m solution of sulfuric acid (h2so4), but the only available h2so4 is a 6.0 m sto
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To determine the amount of 6.0 M H2SO4 needed for the preparation, equate the number of moles of the 6.0 M and 2.5 M H2SO4 solution. This is done as follows
 
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Substituting the known variables,
 
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Solving for V1 gives an answer of V1 = 2 L. Thus, to prepare the needed solution, dilute 2 L of 6.0 M H2SO4 solution with water until the volume reach 4.8 L. 


5 0
3 years ago
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