When given a compound, adding up all of the _______ of all of the individual atoms within one molecule of a compound will determ
2 answers:
Answer:
D. atomic masses
Explanation:
Molecular formulas is the actual number of atoms of each element in the compound. Molecular mass is the sum of the mass of each element which is present in the molecular formula is multiplied by their subscript which appear in the molecular formula.
For example,
The formula is =
Mass from the formula = 4×Mass of Carbon + Mass of Hydrogen×1 + Mass of oxygen = 4×12 + 8×1 + 16= 72 g/mol
Thus, Correct option is - <u>D. atomic masses</u>
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Answer:
4.47 km
Explanation:
If we draw the path of the van then we get a shape with two exposed points A and D. If we draw a line from point D perpendicular to BA we get point E. This gives us a right angled triangle ADE.
From Pythagoras theorem
AD² = AE² + ED²
Hence, the van is 4.47 km from its initial point
Answer:
D. the proper replacement unit for one joule per second
Explanation:
When energy is divided by the time the energy was used we get power
So, the answer is D. the proper replacement unit for one joule per second