Answer:
- <u>Second choice: </u><em><u>How does the position of the Sun, moons, planets and stars affect a person's personality traits and daily behavior patterns?</u></em>
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Explanation:
Science or scientific investigations deal with objective phenomena; this is phenomena which can be described by using objective measurements.
The effect of the position of the Sun, moons, planets and stars on a person's personality and daily behavior patterns is not a scientific question because none scientific field deals with that kind of questions.
Only, a pseudoscience, this is a set of beliefs that have not been scientifically proved, may deal with a question about the effect of the position of some heavenly objects can affect a person's personality traits and daily behavior of patterns.
On the other hand, the aspects deal with in the other questions (the mass of a toy car, the speed down a ramp, the heating from different type of pans, how different type of chemicals remove the cell wall of a plant cell) are measurable and testable (falsifiable), which make them objects of science (like physics, chemistry, and biology)
Answer:
The more fraction NaoH is 39.998g/mol
Answer:
hydrogen
Explanation:
it diffuses faster compared to helium since it is less dense
Given the balanced chemical equation for combustion of propane:

Moles of propane
=3.6 mol
Propane is the limiting reactant as the other reactant oxygen is said to be present in excess.
Amount of products formed would depend on the moles of limiting reactant.
Mole ratio of water to propane as per the balanced chemical equation
=
Calculating the moles of water produced from 3.6 mol propane:


= 14.4mol
Theoretical yield of water = 14.4 mol
Actual yield = 12 mol
Percent yield = 
= 