The color of a substance is a physical property. Please select the best answer from the choices provided T F

Answers

Answer 1

Answer:

Answer:

True

Explanation:

Color is the splitting of light into different spectra. Light, by nature, is monochromatic. This means that it has one wave length. The prism experiment has proved that light has many colors. About 7 colors have been discovered.

The colors simply denote the different wavelengths of the "monochromatic" light. The colors are the different wavelengths of light when it is split.

The eye, sees color as a reflection. In the electron sense, color is as a result o electrons being "excited" or promoted from a lower orbital to a higher energy orbital.

Answer 2

Answer: True. Bc a physical property is the appearance. A chemical property is like flammability. Hope this helps!

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All life that we know of is based on carbon. Carbon's ability to form many chemical bonds is an important characteristic that allows it to form the basis of life. Identify two other elements that can probably also form a large number of bonds and that probably have similar properties to carbon.

Answers

Starch and cellulose have the same substance but different structures. They are both polysaccharides. The basic unit of a polysaccharide is the glucose. Glucose, which contains carbon, hydrogen, and oxygen, have two forms. The alpha-glucose with an alcohol group attached to carbon 1 is down and the beta-glucose with the alcohol group attached to carbon 1 is up. Starch is the alpha-glucose while cellulose is the beta-glucose. Starches are linked into a straight chain whereas the cellulose are connected like a pile of stack paper. When the human body eats starch, it can digest the starch but not the cellulose because it has no enzyme that can break it down.

Which of the following is most closely related to the specific heat of a substance?a. its temperature
b. its melting point
c. its amount of heat transferred
d. its rate of change in temperature

Answers

The following that is is most closely related to the specific heat of a substance is its rate of change in temperature. The answer is letter D. The amount of energy required to raise the temperature of 1 kilogram of a substance by 1 Kelvin is called the specific heat. The answer is a. For example, water. Water has a specific heat of 4.18 Joules per kilogram per Kelvin. This means that in order for water to change from one state to the other at one kelvin, it needs 4.18 Joules of energy per one kilogram of water. But it does not apply to changes in phase, because the heat added or removed during a phase change does not change the temperature of a substance.

When Ava first opened her beverage, there were lots of bubbles. However, as her drink got warmer, she noticed that there were fewer bubbles in it. In general, as the temperature increases, the solubility of solids _______ while the solubility of gases _______. 1) increases, decreases 2) increases, increases 3) decreases, decreases 4) decreases, increases

Answers

In general, as the temperature increases, the solubility of solids increases, while the solubility of gases decreases. Therefore, the correct answer is 1) increases, decreases.

Final answer:

Generally, as temperature rises, solid solubility increases while gas solubility decreases. This is why when a carbonated drink gets warm, it has less bubbles.

Explanation:

Generally, as the temperature increases, the solubility of solids typically increases, while the solubility of gases usually decreases. Thus, for Ava's case with the beverage, as the drink got warmer (indicating an increase in temperature), the bubbles, which are gaseous, decreased. A real-life example of this is a carbonated drink. When you open a cold soda, it starts out very bubbly.

However, if you let it sit and warm up, the gas (carbon dioxide) becomes less soluble in the liquid and leaves the solution, resulting in fewer bubbles.

Learn more about Solubility and Temperature here:

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All points to the blank of zero on a horizontal number line are negative.

Answers

All points to the left of zero on a horizontal number line are negative. A number line is a picture of a graduated straight line that serves as abstraction for real numbers. This number line can be extended to the left to represent numbers which are smaller than 0. Such numbers are called negative numbers.

All points to the left of zero on a horizontal number line are negative

islas change in velocity is 30 m/s, and hazel has the same change in velocity. which best describes explains why they would have different accelerations

Answers

Explanation:

Acceleration is defined as change in velocity with respect to change in time.

Mathematically, Acceleration = \frac{\Delta v}{\Delta t}[/tex]

where $\Delta v$ = change in velocity

$\Delta t$ = change in time

When Islas and Hazel both has change in velocity as 30 m/s but still their acceleration is different then it means that change in time for both of them is different.

Thus, they have different acceleration.

Acceleration = (change in velocity) / (time for the change) .

They may have had the same change in velocity, but if the changes
happened in different lengths of time, then their accelerations were
not the same.

Mechanical waves can travel through _______. vacuums only

both vacuums and mediums

mediums only

Answers

mediums only, mechanical waves always propagate through medium

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