This is a type of question that tests your ability to find the limiting reagent, or the component that first runs out in the reaction and limits the continuation of the reaction.
To start, begin by figuring out how many times each component can run the reaction. It takes three moles of H2 to run the reaction “once”, so with five moles of H2, you can run it 1.66 times.
It takes one mole of N2 to run the reaction “once”, so with three moles of N2, you can run it three times. This means that H2 is the limiting reagent (1.66 < 3), and N2 will have excess.
After the reaction is run to completion (1.66 times), 1.33 moles of N2 will remain (1.33 left + 1.66 used = 3, beginning).
<span>When
the igneous rock is deep underground for many years, it will form into
metamorphic rock under extreme pressure and temperature. It could also form
into magma when it melts deep beneath the layers of earth or it could form
sediments when subjected to weather erosion. The answer is letter C.</span>
I cant entirely tell for now but an article on rodioactivity should solve the problem
Answer: two or more different pure substances, which may be elements or compounds.
Explanation:
The term varieties of matter is kind of ambiguos since it is not defined.
The best approach to the question is to think of matter as it can be classified into to kinds: pure substaces and mixtures.
Elements and compounds are pure substances.
Elements are pure substances constituted by only one kind of atoms. An element cannot be divided into simpler substances either by physical or chemical media.
A compound is a chemical combination of two or more different elements. A compound can be divided into simpler substances by chemical reactions, but not by physical media. The properties of compounds are different of those of the elements of which they are constituted. The composition of a compoind (ratio among its elements) is fixed.
A mixture is the physical combination of two or more pure substances (either different elements or compounds) which can be mixed in any proportion. This is, its composition is variable. The substances that form the mixture can be separated by physical media.
Answer:
molecules, elements
Explanation:
molecules are a mix of elements