Answer:
When electrons are transferred to or removed from an object.
Explanation:
Because electrons have a negative charge, when they are added to an object, it becomes negatively charged. When electrons are removed from an object, it becomes positively charged.
Answer:change in number of atoms
Explanation:AP3X
False. Pillow basalt is formed when basalt erupts underwater or flows into the sea
To find out the molar mass, you have to break down each of the elements, then add them up.
C6 = 12.01 x 6 = 72.06 (Beacause, there are 6 carbon atoms)
H12 = 1.01 x 12 = 12.12 (Because, there are 12 hydrogen atoms)
O6 = 16.00 x 6 = 96 (Because there are 6 oxygen atoms)
Now, you will add all three of the elements up: 72.06 + 12.12 + 96 = 180.18.
So the molar mass of glucose is 180.18.
Answer:
Percent Composition of Compounds
The percent composition (by mass) of a compound can be calculated by dividing the mass of each element by the total mass of the compound.
LEARNING OBJECTIVES
Translate between a molecular formula of a compound and its percent composition by mass
- The atomic composition of chemical compounds can be described in a variety of ways, including molecular formulas and percent composition.
- The percent composition of a compound is calculated with the molecular formula: divide the mass of each element found in one mole of the compound by the total molar mass of the compound.
- The percent composition of a compound can be measured experimentally, and these values can be used to determine the empirical formula of a compound.
- percent by mass: The fraction, by weight, of one element of a compound.
- The atomic composition of chemical compounds can be described using a variety of notations including molecular, empirical, and structural formulas. Another convenient way to describe atomic composition is to examine the percent composition of a compound by mass.
- Percent Composition by Mass
Percent composition is calculated from a molecular formula by dividing the mass of a single element in one mole of a compound by the mass of one mole of the entire compound. This value is presented as a percentage.
Explanation:
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