Answer:
When you mix the sugar into the tea and stir, it dissolves so you can't see it. Also when you stir the sugar into the tea the taste changes and it turns sweeter.
The physical property of sugar that changes is that the the sugar is dissolving as well as the molecules will get further apart from each other and will give a sweet taste.
What is physical change?A physical change is characterized by a shift in the physical properties. Melting, transformation to a gas, change in resilience, change in durability, changes in crystal form, textural alter, shape, size, color, volume, and density are all illustrations of physical properties.
The physical characteristics of a substance include its shape, size, color, and state.
A physical change takes place when a substance experiences a shift in its physical properties. Physical changes are usually reversible. There is no new substance formed as a result of such a change.
The parameter of sugar that changes is that it dissolves, and the molecules get further apart from each other, producing a sweet taste.
Thus, the two physical properties of sugar that change when dissolved in hot tea is breaking down of its crystal structure as well as giving sweetness.
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A scientist discovers a new substance. The molecules of the substance form hydrogen bonds with each other. When the molecules lose a lot of
energy, the hydrogen bonds hold them relatively far apart. Based on this information, what can the scientist infer about the substance? (2
points)
Оа
It expands when it freezes.
Oь
It is highly colored.
Ос
It exists only as a gas.
Od
It does not dissolve ionic compounds.
Answer: The answer is: It expands when it freezes. When molecule freezes, it lose energy. When molecules are far apart, it means the volume is greater and it expands.
Explanation: its A can u also anwser my question.
Answer:
it is A
Explanation:
I did the test and got it right!
Can someone please help with giving me some important information about Zr-Zirconium because i can find it anywhere and i have a project about it.. thanks!
Answer:Zirconium is a chemical element with the symbol Zr and atomic number 40. The name zirconium is taken from the name of the mineral zircon, the most important source of zirconium. It is a lustrous, grey-white, strong transition metal that closely resembles hafnium and, to a lesser extent, titanium. Zirconium is mainly used as a refractory and opacifier, altho…
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Where does lava in volcanoes come from?
What are some similarities between atoms, molecules, and elements?
Answer:
Physical matter is made up of atoms and molecules. An atom is the sub-component of a molecule, or the smallest unit of matter. It is the smallest part an element can divide into. A molecule is made up of atoms that are bound by ionic, covalent or metallic bond.
please help meeeeeeeee
Answer:
Curved Line! Biden 2020
Explanation:
Which of the following is NOT a true statement?
The amount of solar radiation emitted by the Sun varies during different Earth
seasons. UV rays are blocked by Earth’s ozone layer.
The top several meters of the ocean is the greatest absorber of solar radiation on Earth.
Snow has a greater albedo than a rain forest.
Answer:
The amount of solar radiation emitted by the Sun varies during different Earth seasons
Explanation:
In the equation D=M/V, what does the M stand for?
The subject is SCIENCE I put CHEMISTRY because it wouldn't let me move on.
Answer:
Mass
Explanation:
The formula for density is d = M/V, where d is density, M is mass, and V is volume.
Aliyah marks a line on her driveway with a piece of chalk and another line 50ft away Then she stands with both feet at the line and runs to the opposite line While she runs she times how long it takes her to get to the other line What is she trying to find with the distance and time
Answer:
Speed
Explanation:
Aliyah must have been trying to find her speed.
The speed is a measure of how fast an object or a body is and it is calculated by finding the ratio of distance with time. Mathematically,
speed = [tex]\frac{distance}{time}[/tex] with a unit of m/s.
Hence, with the distance measured on the ground and Aliyah trying to find the time it will take her to cover the distance while running, she must have been trying to find how fast she can run, that is, speed.
Which statement accurately describes the reactants of a reaction?
new substances formed in the reaction
substances that do not participate in a reaction
new substances that are present at the end of a reaction
substances that are used up in a reaction
Answer:
Substances are used up in a reaction.
Explanation:
HELP ME QUICK PLSSS
Answer: Yellow is electron, green is neutron, Red is proton
Explanation:
I learned this
One step in the industrial production of nitric acid is the reaction of ammonia with oxygen gas. 4NH3(g)+5O2(g)-->4NO(g)+6H2O(g) What is the volume of nitrogen monoxide gas that can be produced from 8L of oxygen gas.
Answer:
Moles of nitrogen monoxide gas produced from 8.0 L of oxygen gas = 6.4 L of nitrogen monoxide gas
Explanation:
Equation of reaction: 4NH₃(g) + 5O₂(g) --> 4NO(g) + 6H₂O(g)
From the equation of reaction, 5 moles of oxygen gas produces 4 moles of nitrogen monoxide gas
1 mole of a gas at STP occupies a volume of 22.4 L
5 moles of oxygen gas occupies a volume of 5 * 22.4 L = 112 L
4 moles of nitrogen monoxide as occupies a volume of 4 * 22.4 L = 89.6 L
Therefore, 89.6 L of nitrogen monoxide gas are produced from 112.0 L of oxygen
Moles of nitrogen monoxide gas produced from 8.0 L of oxygen gas = 8.0 * (89.6/112
Moles of nitrogen monoxide gas produced from 8.0 L of oxygen gas = 6.4 L of nitrogen monoxide gas
An object has a mass of 20g and occupies a volume of 40 ml. Calculate the Density of the object.
Answer:
The answer is 0.5 g/mLExplanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\ [/tex]
From the question we have
[tex]density = \frac{20}{40} \\ [/tex]
We have the final answer as
0.5 g/mLHope this helps you
The temperature of a substance can be described as:
A.) the degree of movement of particles
B.) the degree of hotness of particles
C.) none of the above
Answer:
A
Explanation:
the average kinetic energy of all the atoms or molecules of that substance.
Which layer of earth’s atmosphere contains very little water vapor,has an atmosphere pressure of 0.25 atmosphere,and has an air temperature that increases with altitude?
Answer: Troposphere
Explanation:
In the troposphere, as altitude increases in the troposphere, the amount of water vapor decreases.
Kinematics equation practice
04. Which two methods can be used to separate a salt from its solution in water?
1 crystallisation
2 decanting
3 distillation
4 filtration
А 1 and 2
B 1 and 3
C 2 and 3
D 3 and 4
Answer:
B 1 and 3
this might be able to help you
Answer:
i think option b
C 1 and 3
Explanation:
Simple distillation is a method for separating the solvent from a solution. For example, water can be separated from salt solution by simple distillation. This method works because water has a much lower boiling point than salt. When the solution is heated, the water evaporates.
Crystals grow because salt molecules in the solution meet up and interlock. As they do so, they fit together like puzzle pieces, arranging themselves in a lattice structure, thus creating a crystal nucleus. ... it crystallizes.
An element that forms colored ions is
A)Na
B)Са
C)Ti
D)Li
Which of the following statements best describes what will happen when white light hits a red object? hits a red object?
Question 3 options:
All wavelengths of the light are reflected.
Red wavelengths are reflected while all others are absorbed.
All wavelengths of the light are absorbed.
Red wavelengths are absorbed while all others are reflected.
When white light hit a red colored object, all colors are absorbed and only red color is reflected. Hence, the object appears red in white light.
What is light reflection ?When a light ray hit a transparent or translucent object after hitting the surface the light ray will radiate back in a straight line and make the object's surface gleaming. This is called reflection.
The white light is a mix of all colors. White light absorbs all colors and reflect all colors as well and appears as white. Whereas, all other colors absorbs all colors but reflects only a particular wavelength and appear in the reflected color.
Red light is the longest wavelength among VIBGYOR. It absorbs all wavelengths but reflect only red light. Hence, it will appear in red in all light. Thus, option b is correct.
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The last answer choice us D. Adding more of the chemical will hear the water but only up to a certain temperature
D. Adding more of the chemical will heat the water but only up to a certain temperature
Further explanationChemical changes are changes in the process that produce new substances that are different from the initial/ forming substances. Chemical changes are usually known as chemical reactions. So there are products/reactions and reactants and there is a change in the molecule/particle
The chemical reaction is usually followed by the release of heat, gas, change in color, precipitate substance etc
The heat that occurs in the addition of chemicals is caused by the reaction with water. But there is a constant rise in temperature when water reaches its maximum capacity to react with these chemicals.
Evidenced by the addition of 15 g and 20 g of chemicals, the temperature changes are constant
During photosynthesis, plant cells use sunlight as an energy source; animal cells cannot do this. What substance do Animal cells lack,that allows plant cells to carry out photosynthesis?(SC.8. L.18.1)a.ATPb.Carbon Dioxide. Chlorophyll. Oxygen
Answer:
Chlorophyll
Explanation:
Photosynthesis is the process through which plant cells use carbon dioxide & water to create oxygen & energy rich organic compounds. They do so by converting sunlight ie light energy into chemical energy. This is possible due to presence of chlorophyll in them. Animals can't do so, as they dont have chlorophyll.
What is the boiling point in °C) of a 0.527 m
aqueous solution of LiBr?
Enter your rounded answer with
3 decimal places.
To solve this we must know the concept behind the phenomenon of elevation in boiling point when a non volatile solute is added to any solvent. Therefore, boiling point in °C of a 0.527 m aqueous solution of LiBr is 100.54 °C.
What is elevation in boiling point ?Whenever a non volatile solute is added to a solvent then the boiling point of solvent increases.
Mathematically,
ΔT= Kb× molality
The complete balanced equation can be written as
LiBr → Li⁺ + Br⁻ [two ions]
substituting all the given values in the above mathematical expression, we get
(0.527 m LiBr) x (2 mol ions / 1 mol LiBr) = 1.054 m ions
(0.512 °C/m) x (1.054 m) = 0.540 °C change
100.00°C + 0.540 °C = 100.54 °C
Therefore, boiling point in °C of a 0.527 m aqueous solution of LiBr is 100.54 °C.
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If the volume of both A and C is 2mL, assuming the particles are the same size, what is the density of A? Remember D=M/V
How to Inbox anyone here..
i am a new user.
Answer:
Just like a solid, the density of a liquid equals the mass of the liquid divided by its volume; D = m/v. The density of water is 1 gram per cubic centimeter. The density of a substance is the same regardless of the size of the sample. Summary. Students measure the volume and mass of water to determine its density.
Explanation:
How does the body use energy from respiration
Answer:
Some of the energy released in respiration is used to make larger molecules from smaller ones, to enable muscles to contract and to keep temperature steady. Some of the energy released in respiration in plants is used to make amino acids and proteins. c Food provides the amino acids needed to make body proteins.
Explanation:
what volume of material would you have if you measure 160.8788 grams of a material with a density of 6.544 g/ml?
Answer:
24.58 ml
Explanation:
d=m/v ---> v=m/d
v=160.8788 g/6.544 g/ml
v= 24.58 ml
How do ionic compounds and molecular compounds behave
differently in solution?
Answer : Molecular compounds dissolve in water by means of dipole-dipole attractions and hydrogen bond attractions. These attractions between the molecular compound and water don't form ions when a molecular compound dissolves.
Explanation: I hoped that helped,
What determines the number of protons in an element?
Pepsi has a density of 1.06 g/mL. It has a mass of 370 g. What is the volume of the can of Pepsi?
Answer:
The answer is 320.75 mLExplanation:
The volume of a substance when given the density and mass can be found by using the formula
[tex]volume = \frac{mass}{density} \\ [/tex]
From the question we have
[tex]volume = \frac{340}{1.06} \\ = 320.7547169...[/tex]
We have the final answer as
320.75 mLHope this helps you
Which of the following serve as antibodies? carbohydrates lipids proteins nucleic acids
Answer:
I am going with protein.
Explanation:
I am assuming that it is protein because anitbodies and enzymes are the following protiens.
When was you first body count
Answer:
When I was 12 oofoff susidn