As a phase change occurs when energy is removed or added to a system, the temperature of the substance stays constant because
some substances reach a maximum temperature and will not get hotter.
energy is being used to change the chemical composition of the substance.
energy is moving too quickly for the thermometer to register a change
energy is being used to make or break bonds between molecules.
Answers
Answer:
energy is being used to make or break bonds between molecules
Explanation:
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PLEASE HELP DUE TONIGHT
Compare and contrast ions and isotopes using Carbon.
a. How are isotopes and ions of Carbon similar?
b. How are isotopes and ions of Carbon different?
For each, think about how many protons, electrons, and neutrons are in each as well masses and charges.
Site your source(s) if you use anything outside of our online text.
Answers
Answer:
⬇️
Explanation:
A:
Subatomic particles that are carbon atoms, isotopes and ions have in common are protons. A regular carbon isotope like carbon 13 and carbon ion all have the same number of protons in the atomic nuclei.
B:
Isotope's are versions of a particular element that have a different number of neutrons, while ions are atoms (can be molecules too) that have lost or gained electrons that have an electrical charge. These two also have a different amount of neutrons.
Isotopes have neutrons
Ions involve electrons
Hope that helps! <3
Answer:Differences between atoms ions and isotopes
Isotopes are versions of a particular element that have different numbers of neutrons. Ions are atoms (or molecules) that have lost or gained electrons and have an electrical charge. Isotopes involve neutrons. Ions involve electrons.
Explanation:Differences between atoms ions and isotopes
Isotopes are versions of a particular element that have different numbers of neutrons. Ions are atoms (or molecules) that have lost or gained electrons and have an electrical charge. Isotopes involve neutrons. Ions involve electrons.
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Answers
Answer: its 5ft tall and 12 inches
Explanation:
1. the rate of change in an object's position over time is called what
2. the type of energy that is the sum of kinetic and potential energy at any given time is what
3. A push Or pull that can change the motion of an object (examples: magnetic force, frictional force. Please Help me this is due tomorrow
Answers
Answer: 1 . velocity 2. total mechanical energy. 3. magnetic force
Answer:
1. Rise over run, slope, or velocity
2. Mechanical Energy
3. Temperature
It is a broad question
Which of the following statements fully describes what an object may do when it experiences unbalanced forces? Select the two best answers.
A. It may change directions.
B. It will move at a constant speed.
C. It may slow down.
D. It may slow down or speed up.
E. It will stay stationary.
Answers
Answer:b
Explanation:
When the speed of the bottle is 2 m/s, the KE is kg m2/s2. When the speed of the bottle is 3 m/s, the KE is kg m2/s2. When the speed of the bottle is 4 m/s, the KE is kg m2/s2. When the speed of the bottle is 5 m/s, the KE is kg m2/s2. When the speed of the bottle is 6 m/s, the KE is kg m2/s2.
instructions
In this part of the experiment, you will be changing the speed of the bottle by dropping it from different heights. You will use the same mass, 0.250 kg, for each trial, so record this mass in Table B for each velocity. Then, calculate the expected kinetic energy (KE) at each velocity. Use the formula KE = mv2,
where m is the mass and v is the speed. Record your calculations in Table B of your Student Guide.
Answers
Answer:
Based on the given instructions, you need to calculate the expected kinetic energy (KE) at each velocity using the formula KE = mv^2, where m is the mass and v is the speed. The mass is given as 0.250 kg.
Table B: Calculation of Kinetic Energy (KE)
Table B: Calculation of Kinetic Energy (KE)
Speed (m/s)Mass (kg)KE (kg m^2/s^2)20.2500.50030.2500.75040.2501.00050.2501.25060.2501.500
To calculate the kinetic energy at each velocity, multiply the mass (0.250 kg) by the square of the velocity.
For example, when the speed of the bottle is 2 m/s: KE = (0.250 kg) * (2 m/s)^2 = 0.250 kg * 4 m^2/s^2 = 1.000 kg m^2/s^2
Perform similar calculations for the other velocities and record the results in Table B.
Answer:
Explanation:mass of the bottle in each case is M = 0.250 kg
now as per given speeds we can use the formula of kinetic energy to find it
1) when speed is 2 m/s
kinetic energy is given as
2) when speed is 3 m/s
kinetic energy is given as
3) when speed is 4 m/s
kinetic energy is given as
4) when speed is 5 m/s
kinetic energy is given as
5) when speed is 6 m/s
kinetic energy is given as
1. The ocean is also known as Earth's _____. *
A. evaported cloud
B. Giant Collector
C. Condensed Liquid
D. None o the above
Answers
Answer:
Earth is often called the ocean planet because it is 70% covered in water.
Explanation:
D.
What would the difference in mass be in an experiment with a balloon compared to an experiment without a balloon?
A.The mass would stay the same.
B.The mass of the one WITHOUT the balloon would be more because the gas would escape
C.The mass of the one WITH the balloon would be more because the gas would not escape.
Answers
Answer:C.The mass of the one WITH the balloon would be more because the gas would not escape.
Explanation:
Something that an animal does that is driven by instinct is called a??
1.phycial adaption
2.behavioral adaption
Answers
Answer:
2. Behavioral Adaption
Explanation:
I know about this, I think this is the answer. Try it out!!
If there was no sunlight, would there be more or less carbon in biotic matter?
Answers
how many joules would it take to raise 2 grams of AL 1 degree?
Answers
Explanation:
Air has a heat capacity of about 700 Joules per kg per °K and a density of just 1.2 kg/m3, so its initial energy would be 700 x 1 x 1.2 x 293 = 246,120 Joules
differences between covalent and dative bond
Answers
Answer:
Covalent bonding occurs when a pair of nuclei share a pair of electrons with one electron being donated by each atom. In dative covalent bonding the same principle of sharing electrons between two nuclei applies except in this case both of the electrons involved in bonding are donated by one of the atoms.
Explanation:
hope this helps!
Answer:
The key difference between covalent bond and dative bond is that covalent bond forms when unpaired election of two atoms associate with each other while the dative bond forms when an atom donates one of its electron pairs to another atom
Explanation:
7: How many times can a volcano erupt?
Answers
Answer:
Some small volcanoes only erupt once in their lives,
while other volcanoes erupt multiple times. Kilaeua volcano in Hawaii, which has been erupting continuously since 1983, is the world's most active volcano. While some volcanoes erupt at regular intervals, there are always exceptions to the rule
Answer:
small volcano's only 1 time while big volcano's mutiple times
Explanation:
Complete the following table showing what is produced from a single barrel of oil:
Please help will give brainilist
Answers
Answer:
#8: Produces large amounts of methane, which is then released into the atmosphere. It also has worse affects such as: Water contamination, Noise pollution, and fracturing fluid leakage
#9: Methane
Explanation: Not sure about #7, don't want to get you a bad grade, but I know these 2 for sure.
Which of Newton’s Laws of Motion is represented in the following description: The worker complaining because the box was too heavy to move. He could not apply enough force to move it.
1st Law of Motion
2nd Law of Motion
3rd Law of Motion
Answers
Answer:
In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.
Explanation:
Examine the diagram shown. Which are the correct labels for
continental plates 1 and 2?
Answers
Answer: Please give us the diagram to Give you the answer
Explanation:
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When a chemical reaction occurs, what happens to the atoms of the two substances? Provide an example from the Sim (on Amplify) as evidence to support your answer.
When a chemical reaction does not occur, what happens to the atoms of the two substances? Provide an example from Sim as evidence to support your answer.
Answers
An example of this can be seen in the Sim on Amplify, where students can experiment with different chemical reactions. For instance, in the "Chemical Reactions" Sim, students can explore the reaction between iron and sulfur to form iron sulfide. In this reaction, the iron atoms and sulfur atoms combine to form a new compound, iron sulfide, with different properties than the original iron and sulfur. The atoms of the iron and sulfur are rearranged to form new bonds, resulting in the formation of a new substance. This is an example of a chemical reaction, where the atoms of the two substances are rearranged to form a new compound with different properties.
Answer:
Explanation:A chemical response is a chemical transformation in which two chemicals combine to create a third component.
(i) Adding diluted acid to an active metal causes the test tube to heat up and hydrogen gas to escape, which results in the production of heat.
(ii) When diluted hydrochloric acid is added to silver nitrate, AgCl, a white precipitate, results.
(iii) When water is added to quicklime, the mixture boils and produces heat along with a hissing sound.
(iv) Thermal breakdown of mercury oxide - Mercury turns from red to a metallic silver tint as a result of this process.
Which of the following points is/are true for plasma?
(1) It is a very good conductor of electricity.
(2) Gas is transformed into plasma state.
(3) It is influenced by magnetic and electric fields.
(4) All of the choices
Answers
Answer:
4 all of the choices. the rest of the answers are correct so it's all of the choices
What is the charge on the Cr in Cr2O72-
Answers
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
Question # 7
Multiple Select
Choose all correct answers. Select two options.
Plant food made by photosynthesis consists of:
starches
starches
rye bread
rye bread
carbon dioxide
carbon dioxide
chlorophyll
chlorophyll
sugar
Answers
Explanation: plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose. Glucose is used by plants for energy and to make other substances like cellulose and starch.
Hope this helps
starches, carbon dioxide, and sugar.
plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose. Glucose is used by plants for energy and to make other substances like cellulose and starch.Explanation:
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The image is a model of sulfuric acid that has a chemical formula of H2SO4. In 1-2 sentences, explain why creating models, like the one shown in the image above, is important in understanding substances.
(2 points)
Answers
Answer: Creating models is important for a better understanding of the chemical composition of the substances.
Explanation:
The three models of the substances are useful in understanding the molecular composition of the substance and the arrangement of the elements. Even chemical reactions can be explained and understood using these models.
how does the respiratory system aid the digestive system
a. the lungs take in oxygen to aid in food digestion
b.the lungs take in carbon dioxide to aid in food digestion
c. the expand the diaphragm, which helps to push the stomach during digestion
d. the lungs contract the diaphragm, which helps to push the stomach during digestion
PLEASE HELP ASAP ! :)
Answers
Answer:
The respiratory and digestive systems work together to power the body. A properly functioning respiratory system delivers adequate oxygen to the blood. Because the digestive system breaks down food and uses muscular contractions to move food through the digestive tract, it needs oxygen to function properly.
Explanation:
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hope this helps
Do you think rayon when burnt will stick to the body like other synthetic fibers?
Answers
9 different lab rules Explain how students will do a safe lab
Answers
Answer:
Report all accidents, injuries and breakage of class or equipment to instructor immediately.Keep pathways clear by placing extra items on the shelves or under the work tables. If under the tables make sure that these items can no be stepped on.Long hair (chin-length or longer) must be tied back to avoid catching fire.Wear sensible clothing including footwear. Loose clothing should be secure so they do not get caught in a flame or chemicals.Work quietly - know what you are doing by reading the assigned experiment before you start to work. Pay close attention to any cautions described in the laboratory exercises.Do not taste or smell chemicals.Wear safety goggles to protect your eyes when heating substances, dissecting, etcDo not attempt to change the position of glass tubing in a stopper.Never point a test tube being heated at another student or yourself. Never look into a test tube while you are heating it.Hope this helps:))
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2. If something breaks step away and do not try to fix it
3. Do not smell or eat the chemicals it is very dangerous
4. Do not put anything up to your eye.
5. Make sure you do not wear something loose so it does not interfere with anything.
6. Do not run or anything with testing tubes.
7. Pay close attention when doing something with chemicals, you do not want to go wrong or explore something up.
8. If glass breaks or something goes wrong, such as accidents or injuries tell the teacher.
9. Do not take off anything you are suppose to wear in class, such as safety goggles, also do not try to mess with chemicals.
Which two particles are found in the center of an atom?
A) Electrons and Inos.
B) Protons and Neutrons.
C) Protons and Electrons
D)Electrons and Neutrons.
Answers
Answer:
B) Protons and Neutrons
Explanation:
In every atom, there is a Nucleus which contains protons and Neutrons. Protons being positive and Neutrons not having a charge (neutral).
Sounds with a small amount of energy travel _________distances than sounds with more energy.
Lesson 4.07
Question 7 options:
shorter
medium
same
longer
Answers
Answer:
longer
Explanation:
this is because sounds with small energy due to production of high pitched sound travels longer distances.This sound move at a higher velocity and ata faster rate.
Match each letter with the correct label. Use the atom diagram below.
Electron - Nucleus - Proton - Neutron
Answers
C= protons
B= neutron
A= electron
Answer:
Explanation: First and foremost, we must carefully examine the provided diagram in order to properly name the sections of an atom diagram.
Step-by-step instructions are given along with the answers in sequential sequence.
Correct answer for (A) is Electron since they are present at the outermost shell of an atom.The correct answer for (B) is Neutron since it is the central element of an atom.The proton is the right answer for (C), as it is included in the nucleus grouping with the neutron.The nucleus is the correct option for (D) since it is the primary component of the atom and includes both protons and neutrons.Learn more about the Atom here:
https://brainly.com/question/12578802
If someone said a particular metal had "hardness," what would she mean? A.it can't be bent easily B.it can't be stretched out easily C.it can't be scratched easy D.if you bent it, it can't go back to it's original shape {[(send me a friend request please)]}
Answers
What was one was one important impact of Supreme Court's ruling in Bush v. Gore
Answers
Answer: the answer is b or c
Explanation:
I took it
In an electrical wire, if instead of copper, plastic wire is used. Would it conduct electricity?Justify your answer.
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Answer:
No, a plastic wire would not conduct electricity. This is because plastic is an insulator that does not allow electric current to flow through it. In a wire, electrical conductivity is provided by the movement of charged particles - typically, electrons. Copper is an excellent conductor of electricity because it has a high number of free electrons that are not bound to atoms and can move through the wire very easily. However, in a plastic wire, the tightly bound electrons of its atoms do not allow for the free flow of charges, thus preventing the passage of electric current.
BRAINLIEST IF CORRECT (fill in the blanks)
The use of pesticides (blank) affect plant reproduction. This occurs because insects are important (blank) of plants. The loss of native insects (blank) a major problem in the United States and can even affect our food supply.
options for blank one: does or does not
options for blank two: pollinators, predators or consumer
options for blank three: is or is not
(please dont answer with stuff that doesn't make sense or "I needed points sorry")
Answers
Answer:
Blank 1: does
Blank 2: pollinators
Blank 3: is not