Who is correct? Reggie, because baking and melting cause bonds to be broken, leading to a chemical change. Reggie, because objects that are heated always undergo chemical changes. Charlotte, because melting objects only sometimes cause a chemical change. Charlotte, because baking causes a chemical change, but melting objects is a non-chemical change.
Answers
Answer: Charlotte, because baking causes a chemical change, but melting objects is a non-chemical change.
Explanation: Baking is a chemical change you cant turn it back to what it was before. Its chemical properties have changed. Melting is a physical change. Its chemical properties are still the same it has not changed. It just changed it's physical form but the object is still the object.
Answer:
Charlotte, because baking causes a chemical change, but melting objects is a non-chemical change.
Explanation:
took the quiz on edge
Related Questions
Scientists have discovered a colony of potential organisms on the Planet Moby and named them "Maxoids." Read the information below that scientists have gathered on Maxoids and decide whether Maxoids are living or nonliving things. Explain how you came to this conclusion.
Through testing and observation, scientists have recorded the following characteristics of Maxoids. Maxoids reproduce via sexual reproduction. One parent carries the Maxoid eggs for 12 weeks before they hatch. After hatching, juvenile Maxoids continue to grow for seven months. To acquire energy for growth, Maxoids consume a peculiar liquid substance native to the planet Moby. The Maxoids' cells use this energy, as well as large amounts of water, to carry out important functions. The Maxoids are sensitive to changes in internal temperature. Sometimes they dig holes and lay in them to cool down if they get too warm.
Answers
The Maxoids are living things because they possess the characteristics of living things.
What are living things?Living things are things which have life in them.
Living things are identified by the characteristics which make them living.
The characteristics of living things include:
Movement - living things are able to move all or parts of their bodyRespiration - living things are able to break down food substances to produce energyNutrition - living things are able to take in food substancesIrritability - living things are able to respond to changes around themGrowth - living things are able to increase in size and massExcretion - living things are able to remove waste substances from their bodiesReproduction - living things are able to produce new ones of their kindConsidering the Maxoids;
They are able to reproduceThey take food in the form of a liquid substanceThey are sensitive to changes in internal temperatureIn conclusion, the Maxoids are living things.
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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:
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what does kinetic molecular theory mean
Answers
Answer: gas particles that are in constant motion and exhibit perfectly elastic collisions
Explanation:
Which is a physical change?
using electricity to break down water into hydrogen and oxygen
formation of rust on a metal fence
turning on a gas burner on a stove
the evaporation of water into water vapor
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Answer:
Hello how are you doing my name is naitik your answer is c because it can be reversed I hope it helps
Formation of rust on a metal fence
Why does an object with less mass move faster after a collision with an object with more mass?
Answers
Answer:
if two objects of different mass have the same momentum, then the object with the least mass has a greater velocity
The greater the force that is applied to an object of a given mass, the more the object will accelerate
Explanation:
For example, doubling the mass of an object results in only half as much acceleration for the same amount of force
what is the function of the two microscope lenses?
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How do we draw a lewis dot diagram (electron dot diagram) for sodium ethyl xanthate? Please I'll mark brainliest for the correct answer.
Answers
Refer to the attachment
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:
The distance time graphs for two objects are shown below: look at the picture. Which statement is true? Both objects move at variable speeds. Both objects move at a constant speed. Object A is moving at constant speed but Object B is moving at variable speed. Object A is moving at variable speed but Object B is moving at constant speed.
Can you get this done before 10:40 pls
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Answer:
The last statement is correct
Explanation:
?What statement best describes the arrangement of the atoms in an ethylene molecule?
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What is NOT true about genes and chromosomes?
Genese are located on chromosomes
Chromosomes are in the nucleus
A single chromosome can contain hundreds of genes
All of these are true
Answers
Let us go option by option :
1) Genes are located in chromosomes. TRUE
Chromosomes are in cell nucleus. A chromosome contains hundreds and thousands of genes. A normal have 23 pairs of chromosomes, and a total of 46.
2) Chromosomes are the in nucleus.
TRUE
Chromosome is structure found in nucleus of the cell. It is made up of protein and DNA.
3) A single Chromosome can contain hundreds of genes.
TRUE
single Chromosome can contain hundreds of tgenes.
4) All of the above
TRUE
As all the statements above are true. The correct option is 4.
Answer:
all of them are true
Explanation:
this is because chromosomes contain genetic materials and it is present in the nucleus.
Therefore, the correct option is 4) all of these are true
no problem
Do you think rayon when burnt will stick to the body like other synthetic fibers?
Answers
Which choice describes an organism found in the understory of a rainforest? Responses
A. Palms and other small trees
B. Very tall trees
C. Bacteria
D. Thick, woody vines
Answers
Answer: Palms and other small trees
Explanation:
Answer:
A. Palms and other small trees
Explanation:
Understory Layer
Located several meters below the canopy, the understory is an even darker, stiller, and more humid environment. Plants here, such as palms and philodendrons, are much shorter and have larger leaves than plants that dominate the canopy. Understory plants’ large leaves catch the minimal sunlight reaching beyond the dense canopy.
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How does the Gulf Stream affect the climate of northern eroupe
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Answer:
The effect of the Gulf stream is that it may change the climate of northern Europe as it may make it warmer. The Gulf Stream may change the climatic condition of the Northern Europe area as it will make the environment warmer.
_____________
Hope this helps! c:
GIVING BRAINLYEST PLEASE HELP ASAP!!!!
Circle the correct words to complete the sentences. 1. Precipitation falls in these two forms: Solid / Liquid / Gas 2. Evaporation changes gas / liquid water to ice (solid) / water vapor (gas). Use evidence to support your answer.
Answers
2. Liquid and gas.
This is supported because precipitation falls in hail (solid), and Rain (Liquid).
The second part is supported because the sun turns water into gas, using heat (evaporation)
2 liquid and gas
Explaination
Because precipitation falls in hail and rain
As solid and liquid respectively
And about second part sun turns water on vapour by evaporation means liquid and gas respectively
A student wanted to test how the mass of a paper airplane affected the distance it would fly. Paper clips were added before each test flight. As each paper clip was added, the plane was tested to determine how far it would fly.
What was the dependent (outcome) variable from this experiment?
The paper airplane design.
The number of paperclips.
The type of paper.
The distance the plane flies.
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Answer:
The distance the plane flies.
Explanation:
This is the dependent (outcome) variable because it is changing depending on the number of paper clips that are added to the plane.
Answer:
The distance the plane flies.
Explanation:
The deepest hole on Earth is only about 12 km deep. So, you should know that most of the data you collected in this virtual lab re actually scientific inferences, and factual data. Do you think any this information will change in your lifetime? Why or why not?
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°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
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.
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:
1. Using D10W and a vial of NaCl 4 mEq/mL, how many mL of NaCl are needed to prepare 250 mL of a
D10/NS solution?
a. 4.8mL
b. 9.6ml
c. 19.6mL
d. 154mL
Answers
To prepare 250 mL of a D10/NS solution using D10W and a vial of NaCl 4 mEq/mL, you would need 9.6 mL of NaCl. Normal saline (NS) contains 154 mEq/L of sodium chloride (NaCl). To prepare 250 mL of NS, you would need 250 mL * (154 mEq/L) = 38500 mEq of NaCl. Since the vial of NaCl contains 4 mEq/mL, you would need 38500 mEq / (4 mEq/mL) = 9625 mL = 9.6 mL of NaCl. So the correct answer is b. 9.6ml.
How does an atom change if all of its electrons are removed?
p.s. I'll mark the first answer the brainliest if it is correct! ;)
a. The atom’s volume increases.
b. The atom’s mass increases.
c. The atom becomes positively charged.
d. The atom becomes negatively charged.
Answers
c. The atom becomes positively charged
if the electrons are removed it means theres no longer a negative charge to balance the positive charge of the protons in the atom
Ricardo and Maria conducted an experiment to test if the mass of a ball affects how fast it would roll down a ramp. They set up the experiment using a ramp and three balls of different masses. They tested each ball once and recorded their results. They concluded that the more mass a ball has, the faster it will roll down the ramp. Why is this experiment not reliable?
Their experiment was not controlled.
Their experiment did not test enough variables.
Their experiment was not performed multiple times.
Their experiment was not performed by multiple people.
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What does amu mean/ stand for
Answers
Answer:
atomic mass unit I think
Answer: atomic mass unit
Explanation: hope this helps
What is the charge on the Cr in Cr2O72-
Answers
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
Descride Three ways that people can conserve natural resources?
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Answer:
1. Reuse things like cups, towels, cloths, etc.
2. Plant a tree. (Trees and other organic energy sources are traditional sources of renewable energy.)
3. When using natural resources, only use the necessary amount so you're not wasting any.
Hope this helps!!
2. do something for the environment! plant some flowers or pick up trash when you see it.
3.
In the following images, a blue circle represents an atom of one type of element, and a red square represents an atom of a second type of element. Determine which of them represent a pure substance, a homogenous mixture, and a heterogeneous mixture.
Are these in the right order?
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Answer: No they are not. "Pure substance" is supposed to be placed in the middle picture. "Homogenous mixture" is supposed to be placed in the right picture. "Heterogenous mixture" is supposed to be placed in the left picture.
Explanation:
Pure Substances:
There are two categories of pure substances: elements and compounds (In our case, we have a compound).
Element (e.g. the blue circles or the red squares):
An element is a fundamental substance.An element cannot become simpler than itself, even if chemical separation methods are used.Compound (e.g. the blue circles bonded together with the red squares in the middle picture):
A compound is a substance made of two or more elements in fixed proportions (i.e. One element has the same amount as the other).A compound can be made into individual elements or simpler substances using chemical methods of separation.Mixtures:
There are two categories of mixtures: homo- and hetero- genous.
Homogenous mixture:
The substances or elements are mixed to look like one single substance and cannot be told apart (e.g. When salt dissolves in water, the water still looks like water).The substances or elements are distributed evenly throughout the apparatus. The number of different types of substances or elements can vary (e.g. There is more water than salt) The substances or elements do not bond together.Heterogenous mixture:
The substances or elements are mixed and can be told apart (e.g. When oil is mixed with water, the oil is "water-hating" so it forms its own layer on the bottom, while the water forms another layer on top of the oil layer).The substances or elements are distributed where one type of substance or element is bunched up in one spot and another substance or element in another spot.The number of different types of substances or elements can vary.The substances or elements do not bond togetherThe second Image is not a homogenous mixture, it is a heterogenous mixture as two different types of elements are mixed together.
The mix of two different types of elements in the heterogenous mixture is not uniform and has uneven mixed types.
The third image is a homogenous mixture as even though two different types of elements are together, they are not mixed with each other.
Unlike in the heterogenous mixture, in a homogenous mixture, there is a uniform mix of two different types of elements.
The first image is correct, the image depicts a pure substance.
To understand better about the Substances:
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What was the low temperature for hurricane Katrina?
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Answer: 90 degrees F
Explanation:
What is an ellipse please help)
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In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. As such, it generalizes a circle, which is the special type of ellipse in which the two focal points are the same.
Maybe they might use that math thing for Science.
Magnesium is a shiny, flexible Material that can be burned in the presence of air. When it is burned, it produces a white powder that is is no longer a shiny and flexible material. This white powder also has more mass than the original magnesium.
Choose the one that best gives the best evidence that a chemical reaction occurred, explain.
A - The molecules were separated into individual atoms.
B - The mass of the magnesium changed.
C - Smoke that was trapped between the magnesium atoms was given off.
D - A new substance was formed.
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Answer:
D, a new substance formed
Explanation:
if Magnesium is shiny a flexible but turns to a white powder no longer shiny or flexible when burned, it turns to a new substance
Explanation
Yeah
How are three heat transfer's shown when making a smore?
I need 3 different claims
3 evidence
3 reasonings
Answers
Answer:
thermal energy: the marshmallow Cooks,the evidence is the marshmallow start turning a different color and it hot to the touch is one for u
The three different heat transfer's shown while making of a smore are thermal energy transfer are convection, conduction and radiation.
What is thermal energy?Thermal energy is defined as the internal energy present in the system in a state to thermodynamic equilibrium by virtue of its temperature.
It can also be defined as the energy produced when rise in temperature causes atoms and molecules to move faster and colloid with each other.
Thermal energy are mainly of three types
Convection - When the heat transfer occurs due to actual motion of particles the process is known as convection. Conduction - When the heat transfer occurs due to vibration of subatomic particles in their mean position, the process is known as conduction,Radiation - When heat transfer occurs from one place to another by electromagnetic radiation the process is called as radiation.Thus, the three different heat transfer's shown while making of a smore are thermal energy transfer are convection, conduction and radiation.
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