What term describes an atom's tendency to hold on on to electrons?
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Explanation:
Electronegativity is the chemical property of an element. This is defined as the tendency of an atom to attract the shared pair of electrons towards itself when a bond is formed.
- This property of an atom increases as we move from left to right in a period because the number of charge on the nucleus increases.
- this property decreases as we move from top to bottom in a group because electrons get added up in the new shells which make it further far away from the nucleus.
Related Questions
How many moles are in 68.5 liters of oxygen gas at STP?
Which of the following is the smallest volume? (2 points) 2500 mL 250 cm3 2.5 x 10-2 L 25 m3
C6H14 has a boiling point than C11H24.
1 According to the kinetic-molecular theory, what happens to a liquid when it is transferred from one container to another?A The volume and the shape stay the same.B The volume increases to fill the new container, but the shape stays the same.C The volume stays the same, but the shape changes to fit the new container.D The volume and the shape change to fill the new container.2 Which of these correctly defines the pH of a solution?A the negative log of the hydronium ion concentrationB the log of the hydronium ion concentrationC the negative log of the hydroxide ion concentrationD the log of the hydroxide ion concentration
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Light, heat or sound is released.
Change of color or odor through the formation of gases.
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Final answer:
The combined mass of oxygen and mercury obtained from the thermal decomposition of 20g of mercury(II) oxide would also be 20g. The exact division between oxygen and mercury would depend on the stoichiometry of the reaction.
Explanation:
The subject here is the thermal decomposition of mercury(II) oxide (HgO). When this compound is heated, it decomposes into mercury and oxygen. The mass principle in chemistry, also known as the Conservation of Mass, states that the combined mass of the products (oxygen and mercury in this case) should be equal to the mass of the reactant (mercury oxide). Therefore, if you heat 20g of mercury(II) oxide, you would obtain a combined mass of 20g of oxygen and mercury. The exact mass of oxygen and mercury would depend on the atomic mass and stoichiometry of the decomposition reaction. For example, if the reaction were 2HgO --> 2Hg + O2, you would get twice as much mercury mass as oxygen, due to the nature of the balanced equation.
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A compound contain two or more different elements
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Answer:
Melting Point.
Explanation:
In testing of a sample has impurities, we have to check the samples’s melting or boiling points or we a separation technique called chromatography.
Now, CaBr_2 which is calcium bromide is a White Hygroscopic Powder. Therefore it is a solid.
Now, a pure solid will always have a fixed melting point which means that it will melt completely at only one temperature.
However, if there are impurities, the melting point of a substance is affected in two ways:
-It's lower than than the fixed melting point
- It would melt at a range of different temperatures as opposed to a fixed temperature for the pure form.
Therefore, a quantity that can be used to determine whether the sample was pure will be melting point.
Final answer:
The student could analyze the melting or boiling point of the sample to determine its purity.
Explanation:
In order to determine whether the sample of is pure, the student can analyze the melting point or boiling point of the compound. The pure compound will have a specific melting and boiling point, while the presence of impurities can cause a change in these values. By comparing the experimental values of the sample with the known values of pure
the student can determine whether the sample is pure or contaminated.
A pure solid, on the other hand, will always have a set melting point, meaning that it will only melt fully at that one temperature. The melting point of a substance, however, is impacted by impurities when it is lower than the fixed melting point. Additionally, in contrast to the pure form's constant temperature, it would melt at a variety of various temperatures.
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A) What do whale sharks eat?
B) How big is the average whale shark’s mouth?
C) Does a whale shark like having a large mouth?
D)What happens to the water that enters a whale shark’s mouth?
Chemistry Honors College level
10th grader
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Answer:
The nonscientific question about whale sharks is
C) Does a whale shark like having a large mouth?
This question asks for the subjective preference of a whale shark, which cannot be determined scientifically since we cannot directly communicate with the animal. Scientific questions are typically based on observable facts and measurable data.
Explanation:
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