The symbol for the metric unit used to measure mass is?
Answers
Answer: Kilograms (kg)
Explanation:
Answer:
(g)
Explanation:
(g) is the symbol of a gram which is the metric unit that measures mass.
Hope that helps!
Related Questions
In which sample do molecules have the greatest average kinetic energy? A.) He at 100 K. B.) H2 at 200 K. C.) O2 at 300 K. D.) H2O at 400 K.
Are the strengths of the interactions between the particles in the solute and between the particles in the solvent before the solute and solvent are combined greater than, less than, or equal to the strengths of the interactions between solute particles and solvent particles after dissolution? Explain.
Which of the following ions has a smaller size? Option 1: O2- Option 2: F- Option 3: They have the same size. Option 4: None of the above.
What physical property of an element determines whether it acquires a positive or negative partial charge when participating in a polar covalent bond?
Answers
Which statement describes what occurs during
this reaction?
(1) Energy is absorbed as a bond is formed.
(2) Energy is absorbed as a bond is broken.
(3) Energy is released as a bond is formed.
(4) Energy is released as a bond is broken.
Answers
Answer: The correct option is 2.
Explanation: We are given in the question that Fluorine molecule is dissociating into two Fluorine atoms. Equation for the following is given by:
In a chemical reaction if the energy is written at the reactant side, the energy is being absorbed and if the energy is written at the product side, the energy is being released.
From the given chemical equation, the energy is written at the reactant side, so the energy is being absorbed by the reactants in order to break the bond between molecule to form 2 individual Fluorine atoms.
Hence, the correct option is 2.
Answers
Post your answer and I'll post mine :)
9.3 %
30%
7.5%
Answers
Answer:
percent by mass = 79%
Explanation:
Data Given:
mass of solute (Na₂CO₃) = 75 g
mass of solvent ( water ) = 20 g
mass percent of solution = ?
Solution:
Formula used to find percent by mass
mass of solute / mass of solution x 100 . . . . . . (1)
first we have to find mass of solution
mass of solution = mass of solute + mass of Solvent . . . . (2)
put values in equation 2
mass of solution = 75 g + 20 g
mass of solution = 95 g
Now,
put values in equation 1
Percent by mass = mass of solute / mass of solution x 100
Percent by mass = 75 g / 95 g x 100
Percent by mass = 79 %
so,
The percent of the solution by mass = 79%
***Note:
The same work can be used for the other values too i.e. if you have 20 g of solute and 75 g solvent.
Answer:
The answer is 78.9%
Explanation:
The percentage weight in volume indicates the mass of solute per volume. We will use the% weight/volume formula to calculate what the exercise asks for, as follows:
%
Answers
Answer:
selenium, Se
Explanation:
Selenium is the only element that has a melting point below 525 K. Therefore, it would be the only element that would be liquid at that temperature.
Final answer:
At 525 K, only bismuth would be in the liquid phase as its melting point is 544.7 K and boiling point is 1837 K, while all other elements would be in the solid state.
Explanation:
The question asks about the phase of different elements at a specific temperature of 525 K. To answer the question, we need to know the melting and boiling points of these elements: platinum (Pt), selenium (Se), bismuth (Bi), copper (Cu), and calcium (Ca).
At 525 K, bismuth (Bi) would be in the liquid state as its melting point is 544.7 K and boiling point is 1837 K. All other elements mentioned have melting points and boiling points higher than 525 K, so they would be in the solid state.
Learn more about Phase of Elements at Temperature here:
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