Answer:
Extensive properties, such as mass and volume, depend on the amount of matter being measured. Intensive properties, such as density and color, do not depend on the amount of the substance present. Physical properties can be measured without changing a substance's chemical identity
Explanation:
Ethane is an alkane. Methane is also an alkane and is considered to be the simplest alkane. The difference is ethane has only 2 carbon. That carbon has 6 hydrogen attached to it. So what we do is we multiply the moles of ethane by the number of hydrogen (by dimension analysis) resulting to 82.68 moles H.
Answer is: this is synthesis reaction.<span>
</span>Chemical reaction: Ba + F₂ → BaF₂.
Synthesis reaction<span> is a type of reaction in which multiple reactants combine to form a single product.
</span>In barium fluoride, barium has oxidation number +2 and fluorine has oxidation number -1, so compound has neutral charge.
Yes a liquid can change into a volume based on the amount of whatever liquid
Without the statements, I can't specifically answer your question. But, I can present the largest piece of evidence we have for the Big Bang Theory.
Over the course of <em>many many </em>years, we have noticed something. Everything is expanding outwards.
We can observe this, and realise that since things are expanding outwards, or, away from something, everything once came from a fixed point.
Life and the universe started from one point, and every single thing in our cosmos is still expanding away from it. =)