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uysha [10]
3 years ago
11

1. Which of the following is true about theories? They are false all the time. They cannot be misproven. They are absolute truth

s. They are accepted as true because of confirmation by experimentation.
Chemistry
2 answers:
lisabon 2012 [21]3 years ago
8 0
They are accepted as true because of confirmation by experimentation.
Alla [95]3 years ago
4 0
A theory is accepted as true because of confirmation by experimentation. For something to become a theory, there has to be scientific evidence, including experiments, that show it has been true thus far. However, it cannot become a law without much more extensive testing. Theories are not false all of the time, as almost any law of science we see began as a theory. Theories can be disproved, as they often times are. Theories are not absolute truths due to the fact many have been disproved.  
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what does the statment mean. The properties of salts are different from the properties of the elements that go into making them
Olegator [25]
Think of it this way,
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Apply this theory onto salts.
8 0
4 years ago
Which operation best represents how to solve for the mass number of an atom?
lina2011 [118]

Answer:

C. protons + neutrons

Explanation:

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6 0
1 year ago
Water contains 7.0 mg/L of soluble ion (Fe2 ) that is to be oxidized by aeration to a concentration of 0.25 mg/L. The pH of the
SpyIntel [72]

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V = 5286 m³

t = 2.6 hr

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4 0
4 years ago
A gas sample in a piston assembly expands, doing 564 kJ of work on its surroundings at the same time that 344 kJ heat is added t
amid [387]

Here we have to get the change of internal energy by the gas due to the 564 kJ work done by the system and addition of 344 kJ heat to the system.

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Or, mathematically we may write, ΔU + W = ΔH.

Now the work done by the system (W) is (-) 564 kJ. The negative sign implies the work done by the system to surroundings as per thermodynamics.

The heat added to the gas (ΔH) is (+) 344 kJ. The positive sign indicate the addition of heat to the system.

On plugging the values: ΔU + (-) 564 kJ = (+) 344 kJ

Or, ΔU - 564 kJ = 344 kJ

Or, ΔU = 344 kJ + 564 kJ

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5 0
3 years ago
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m_a_m_a [10]

Answer:False

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8 0
3 years ago
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