Figure 5 shows how the temperature of a substance changed as it was heated. Which segment of the graph indicates that the substance was undergoing a change of state?
Answers
answer:
B
Why:
Because when heated up, the particles vibrate from the heat and keep on vibrating.
at point b of the diagram, the energy is gone to breaking bonds of the (let's assume) solid.
So there is no change in temperature.
I hope this helps please let me know if you need me to explain more.
When temperature is changing with respect to the time in the given graph, then substance B was undergoing a change of state.
What is change of state?When any substance converts from one form of matter to the other form, then this phenomenon is known as change of state.
In the given figure a graph represents the change in temperature of substances A, B, C and D with respect to the time. Temperature of the substances A, C & D keep continuous changing with respect to the time. But substance B shows change in state because it absorbs the heat to convert in another state by breaking old bonds and making new bonds and showing showing no change in temperature.
Hence, substance B was undergoing a change of state.
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Related Questions
What do the groups (columns) and periods (rows) tell you about the elements on the periodic table?
Answers
Answer:
Groups: The vertical column of the periodic table that signifies the number of valence electrons in an element.
Period: The horizontal rows in the periodic table that signify the number of electron shells in an element.
Explanation:
Answer:Groups: The vertical column of the periodic table that signifies the number of valence electrons in an element. Periods: The horizontal rows in the periodic table that signify the number of electron shells in an element.
Explanation:
The table has seven rows and 18 columns. Each row represents one period; the period number of an element indicates how many of its energy levels house electrons.The columns of the table represent groups, or families, of elements.
carbon reduction process is not applied for extraction of alkali metal . why ?
Answers
Answer:
The alkali metals are the highly electropositive metals. Highly electropositive metals cannot be extraction carbon reduction process, because these metals do not react with carbon
Explanation:
There is 200 grams of water on a stove. The water is currently 25 C. How much energy in joules must be used to raise the water to 90 C?
Answers
Answer:
q
=
64 kJ this is answer. .
Rheumatoid arthritis is a disorder in which the joints swell and cause pain. Rheumatoid arthritis causes the body’s own immune cells to attack the membrane of the joints. Which body system does rheumatoid arthritis affect?
Answers
Answer:
Immune system
Explanation:
Rheumatoid arthritis is an autoimmune disease. Normally, your immune system helps protect your body from infection and disease. In rheumatoid arthritis, your immune system attacks healthy tissue in your joints. It can also cause medical problems with your heart, lungs, nerves, eyes and skin.
When an organism dies it is exposed to many different types of biotic and abiotic factors biotic factors include?
Answers
Answer:
the organisms themselves,other organisms,interactions between living organisms, and even their waste.
What causes streams to form?
O absorption
O precipitation
O glaciers
O lakes
Answers
Answer: essay the answer is B: precipitation
Explanation:
What is the mass of 1,300 cm of gasoline? The density of gasoline is 0.67 g/cm.
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Answer:
Volume x Density = Mass of a substance
1300 x 0.67 = 871
The mass is 871 (unit)
c) ¿Qué ocurriría si tenemos disueltos 200 g de
nitrato de potasio en 300 g de agua a 60°C
y enfriamos la disolución hasta los 10 °C?
Answers
How many grams of hydrogen are needed to fully react 621. 9 grams of nitrogen gas.
Answers
Answer:
9 grams of nitrogen gas
Explanation:
How many different types of atoms are in the formula Ba(OH)2 • 8H2O?
A)3
B)2
C)11
D)22
Answers
Why?
“Different type of atoms” which refers to different element present in the compound. Only Barium, Oxygen, and Hydrogen found in that compound, thus there are 3 types of atom founded it hydrated barium hydroxide.
I hope this enlighten. Apologize for any English or Chemistry concepts.
Which set of laboratory equipment would most likely be used with a crucible
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Answer:
That should be crucible tong
Which are effects of long-term exposure to mustard gas? Select all that apply. One, some, or all responses may be correct.
Answers
The effects of long-term exposure to mustard gas causes mortality and chronic respiratory disease.
Exposure to mustard gas in the long term can result in mortality from influenza, pneumonia as well as chronic breathing disease. Exposure for long term leads to respiratory complications and septic shock. Extensive breathing in the environment of mustard gas can cause chronic respiratory disease, respiratory infections or death.
Extensive eye exposure to this gas can cause permanent blindness. Exposure to mustard gas may also increase the chances of lung and respiratory cancer so we can conclude that mustard gas is lethal and can cause a number of diseases in a person who is exposed to it.
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đơn chất nào sau đây tác dụng với dung dịch axit sunfuric loãng sinh ra khí ?
a đồng
b cacbon
c nhôm
d lưu huỳnh
Answers
Answer:
C. Al
Explanation:
2Al+ 3H2SO4(l)------> Al2(SO4)3+ 3H2
How do ionic bonds form?
Quick
Answers
Answer:
Explanation: ionic bond, also called electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound. Such a bond forms when the valence (outermost) electrons of one atom are transferred permanently to another atom.
superscript Coefficient
Me think
can anyone tell me "what are the exceptions of law of reciprocal proportions??"
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Whymilk is taken as mixture
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Explanation:
Main compounds of milk are lactose and casein. And it is also called a colloidal mixture (i.e. in which one substance of microscopically dispersed insoluble or soluble particles is suspended throughout another substance). Therefore milk is regarded as a mixture not as a pure substance. So this is the required answer.
What is activation energy
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Answer: Activation energy is defined as the minimum amount of extra energy required by a reacting molecule to get converted into product. It can also be described as the minimum amount of energy needed to activate or energize molecules or atoms so that they can undergo a chemical reaction or transformation.
Explanation:
What can you say about the reactants of photosynthesis and the products of cellular respiration?
Answers
Answer:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by-products and ATP is energy that is transformed from the process.
Explanation:
Can somebody help me with this please?
Answers
Answer:
So what you want to do is to place sulfur on top with the two fluorine's on the bottom left and right hand side at slight angles. You don't want to make it look interconnected as one whole bond. Draw a single line from each "F" to the "S" to model two fluorine atoms bond to one sulfur atom (Single bond, only one electron is being shared between each).
Why is it possible to collect hydrogen gas over water?
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Are we alone in the universe?
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Answer:
no ofcourse not!
Explanation:
Answer:
no
Explanation:
the universe is way too big, maybe not in a conventional form but there are definitely aliens
wht will react with acid to giv bluish green salt nd water ??
Answers
Explanation:
When dilute HCl is added to a small amount of copper oxide in a beaker, a greenish-yellow gas is released and a bluish-green solution is formed. Since the metal oxides such as a Copper oxide (CuO) are basic in nature, it reacts with acids such as HCl to form the corresponding salt and water.
When refering to a gas, the higher the temperature, the faster the particles move:
True
False
Answers
Answer:
TrueExplanation:
In Gas,The movement of particles depends upon their temperature. When, the temperature is high the movement of the particles is faster.When, the temperature is low the movement of the particles is slower down and move close together.Hence,
The above statement is true for, the gas particles moves faster in high temperature.
Describe the nucleus of the
atom.
Answers
Answer:
The nucleus of atom is composed of two subatomic particles that each have charges.
Protons, which are positively charged particles.Neutrons, which are neutrally charged particles.Both reside in the nucleus of an atom. The amount of protons and neutrons (Electrons can to) is what helps us identify each atom apart. Electrons are NOT in the nucleus of atom but orbit it in outer layers called orbitals.
In your own words, explain in a simple, short way of what the periodic table is.
Answers
Answer:
The periodic table is a chart that arranges all of the chemical elements.The chemical elements are the substances that make up all matter. The amount of tiny particles in each element is the atomic number, which is how you identify it.
Explanation:
as soda gets warm, it goes flat. why? relate this to solubility.
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Answer:
It's because the solubility of gases in water is inversely proportional to the temperature, so it means when the temperature is increased, the solubility decreases, and the gases tend to get out from the soda
Which highway run through comlumbus
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Answer:
Highway 22 ,GA 31820
Explanation:
Hund's rule: states that electrons always enter an empty orbital before they pair up.
Answers
Answer:
true
Explanation:
According to the chart, very few elements are required for our planet to exist in its current state. Analysis of the chart would lead an observer to conclude that
our planet is exists in its unique state solely because of the element carbon
our planet is mainly composed of hydrogen
our planet is mainly composed of a few key elements, but other elements are present as well
our planet is composed of 92 naturally occurring elements
Answers
Answer:
the 3rd answer
Explanation:
the earth is composed of key element like carbon Oxygen nitrogen phosphorus hydrogen and sulphur CHNOPS but they are other element on earth too even though they are not as essential
9) What is the final pressure in the container shown below after the valve is opened and the gases are allowed
to flow? (The gases do not act)
0
4.00 am
3.00
NE
2.00 am
2.00 L
Answers
A 3.00-L container with O₂ at 4.00 atm is connected to a 2.00-L container with Ne at 2.00 atm, resulting in a final pressure of 3.20 atm in the container.
We have 2 containers connected by a valve.
One container has a volume of 3.00 L and contains O₂ at 4.00 atm. The other container has a volume of 2.00 L and contains Ne at 2.00 atm.
When the valve is opened, the total volume is the sum of the 2 containers.
[tex]V_2 = 3.00 L + 2.00 L = 5.00 L[/tex]
Assuming constant temperature and ideal behavior, we can calculate the final pressure of each gas using Boyle's law.
O₂
[tex]P_1 \times V_1 = P_2 \times V_2\\\\P_2 = \frac{P_1 \times V_1}{V_2} = \frac{4.00atm \times 3.00L}{5.00L} = 2.40atm[/tex]
Ne
[tex]P_1 \times V_1 = P_2 \times V_2\\\\P_2 = \frac{P_1 \times V_1}{V_2} = \frac{2.00atm \times 2.00L}{5.00L} = 0.800atm[/tex]
The final pressure in the container will be the sum of the final pressures of the gases.
[tex]P = 2.40 atm + 0.800 atm = 3.20 atm[/tex]
A 3.00-L container with O₂ at 4.00 atm is connected to a 2.00-L container with Ne at 2.00 atm, resulting in a final pressure of 3.20 atm in the container.
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