Answer:
1.2 mol.
Explanation:
- We can calculate the number of moles of a substance using the relation:
n = mass / molar mass
n is the number of moles.
m is the mass in g <em>(m of NO = 35.0 g)</em>
Molar mass NO = 30.01 g/mol.
- n = mass / molar mass = (35.0 g) / (30.01 g/mol) = 1.166 mol ≅ 1.2 mol.
Given the options it would be B.
Planets orbit the sun in a elliptical pattern around the sun, rather than in a circle.
Hope this helps!
C - Analyze data and draw conclusions. After an experiment or in this case; an investigation, you would analyze your data that you collected from the investigation/experiment, and draw conclusions based on your data.
Answer:
The correct answer is C. element
Explanation:
The sample cannot be an element because an element - or <em>elemental substance</em> - cannot be decomposed into simpler substances. Thus, it cannot be composed by differents types of atoms. For example, an element is carbon (C).
As the sample contains <u>three types of atoms</u>, it can be a compound, a molecule or a mixture, because they can be composed by different types of atoms - of different chemical elements. For example, the sample could contain the element carbon (C) combined with other elements, for example oxygen (O) or hydrogen (H), amoing others.
