You have left the carton of milk out of the refrigerator overnight and it has
spoiled. This is an example of a
A. Physical property
O
B. Physical change
OC. Chemical property
D. Chemical change
Reset Selection
Answers
Answer:
D: chemical change
Explanation:
Related Questions
How does water move between the hydrosphere and atmosphere?
Answers
Answer:
Water moves between the hydrosphere and atmosphere through evaporation condensation and precipitation.
Explanation:
Brainliest plz
Water is a renewable resource that is present in the spheres of the earth. The water moves between the hydrosphere and atmosphere through evaporation, condensation, and precipitation.
What are changing states of matter?The different matters can be changed into one another through various methods that include evaporation, condensation, and precipitation. In the water cycle, the water from the hydrosphere gets evaporated from the liquid to the vapor phase.
The evaporated water vapor then condenses and cools down to form and store in the clouds. Then the condensed vapor in the atmosphere collectively comes back to earth in the form of precipitate that can be rain, snow, sleet, hail, etc.
Therefore, the water cycle involves evaporation, condensation, and precipitation to move water between the hydrosphere and the atmosphere.
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I need help asap pleasee
Answers
pls help me guys, sos
Answers
Answer:
sorry I don't know please I am really sorry
Answer:
In similarity, the farthest they get to being alike is, they both meet some forms of energy. They are different because light energy does not make sound, and sound energy cannot make light.
Hope it helps!
-science potato
. Ashley is identifying insects and finds a camo moth. A camo moth appears like a leaf and is able to easily blend in with its surroundings. Which of the following is one result of this characteristic?
A. The camo moth needs less food.
B. The camo moth uses less energy.
C. The camo moth has fewer offspring to care for.
D. The camo moth has a greater chance of survival.
Answers
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
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 can mountain formation be described according to the theory of plate tectonics
A: As a continental plate and an oceanic plate come together at a divergent boundary, mountains are formed
B: As any two plates meet at a fault line boundary, mountains are formed
C: As two continental plates move past eachother at a transform boundary, mountains are formed
D: As two continental plates collide along a convergent boundary, mountains are formed
Answers
Where is the DNA stored in a cell?
Answers
Answer: nucleus
Explanation:
What does this diagram represent?
A) a turbine
B) a motor
C) an electromagnet
D) a generator
Answers
Answer:
Option (D) A Generator
Explanation:
A generator is an equipment that has to do with the production of electricity by the use of electromagnetic induction. The generator has split rings that make contact with the exterior.
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Mark BRAINLIEST
It is a generator since the electromagnetic radiation makes the coil and rod to spin
Earth’s atmosphere contains the element oxygen in two different forms. The chemical formula for oxygen gas is O2. The chemical formula for ozone gas is O3. How does the structure of oxygen gas differ from that of ozone?
i need and explanation and i need it today. i will give brainliest
Answers
Explanation:
O2 has only 2 owygen molecules. while on the other hand O3 has 3 oxygen molecules
What are the evidences for suspecting the presence of waves?
Answers
Answer:
Well,
Conducting rods are good for detecting oscillating electric fields and conducting loops are good for detecting the presence of radio waves.
Of the first 103 elements, how many have 2 letters in their symbols?
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What is the charge on the Cr in Cr2O72-
Answers
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
Someone please help me with this question.
Keith is investigating how elements combine to form different types of matter. Write a statement regarding natter that is true.
A. Atoms can combine to form compounds.
B. The element make up the building blocks of all matter.
C. Every atom will bond to achieve a stable neutron-proton ratio.
D. There are more than 100 naturally occurring elements that make up all matter.
Answers
Answer:
D. There are more than 100 naturally occurring elements that make up all matter.
Explanation:
All matter is made up of elements, which are substances that cannot be broken down into simpler substances by chemical means. There are more than 100 naturally occurring elements, each with its own unique properties and characteristics. These elements combine to form compounds, which are substances made up of two or more elements that are chemically combined in a specific ratio. For example, water is a compound made up of two hydrogen atoms and one oxygen atom. Atoms can bond with each other in various ways to form compounds, but they do not always bond to achieve a stable neutron-proton ratio. The stability of an atom or compound depends on a variety of factors, including the arrangement of its electrons and the nature of the chemical bonds it forms with other atoms.
Answer:
D. There are more than 100 naturally occurring elements that make up all matter.
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Answers
Answer:
umm sorry but some times do it your self
Explanation:
Answer:
its too much and the people that say download here and put bit . ly blah blah are fake.
Explanation:
Which of the following best explains the relationship between peak-to-peak amplitude and semi-amplitude?
Answers
Answer:
A. Semi-amplitude is half the distance of the peak-to-peak amplitude
Explanation:
The correct answer is : The semi-amplitude is half the distance of the peak-to-peak amplitude (option A). The peak-to-peak amplitude is the total distance between the highest positive peak and the lowest negative peak in a waveform. It represents the full range of variation in the amplitude of the waveform.
The peak-to-peak amplitude of a waveform is the measurement of the total distance between the highest positive peak and the lowest negative peak. It provides information about the full range of variations in the amplitude of the waveform. Mathematically, it is calculated by subtracting the minimum value from the maximum value of the waveform.
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because _______ and _______ move in the atmosphere, weather constantly changes
Answers
Answer:
oxygen and hydrogen
Explanation:
Weather processes such as wind, clouds, and precipitation are all the result of the atmosphere responding to uneven heating of the Earth by the Sun. ... (1) VERTICAL heat transport: Solar heating of the Earth's surface makes the atmosphere convectively unstable, causing vertical air currents to develop.
Jade described one of the components of weather as follows:
It drops as you go higher.
It is usually higher on summer days.
Its low and high are usually shown on weather map.
Answers
Air pressure drops as you go higher, and more pressure on summer days.
On the news, the L and H are low and high pressure.
True or False: Concrete has only positive qualities, and there are no disadvantages to using it.
PLEASE HELP
Answers
A model of an atom shows eight electrons in rings that represent different energy levels. How many electrons are in each energy level?
A. two in the first energy level, six in the second energy leve
B. eight in the first energy level, zero in the second energy level
C. zero in the first energy level, eight in the second energy level
D. four in the first energy level, four in the second energy level
Which statement about an atom is correct?(1 point)
A. The neutron has no charge and is found outside of the nucleus.
B. The electron has a negative charge and is found outside of the nucleus.
C. The proton has no charge and is found in the nucleus.
D. The neutron has a negative charge and is found in the nucleus A student wants to draw a model of an atom.
Which statement describes how to find the number of neutrons to include in the model?(1 point)
A. Subtract the atomic number from the mass number.
B. Add the number of electrons to the number of protons.
C. Subtract the number of electrons from the number of protons.
D. Add the atomic number and the mass number.
What is the atomic number of an atom?(1 point)
A. the number of particles outside the nucleus
B. the number of particles in the nucleus
C. the number of neutrons
D. the number of protons
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Answers
Energy levels are arranged in increasing order of magnitude in accordance with the Bohr model.
The correct sequence of answers is as follows;
1) two in the first energy level, six in the second energy level
2) The electron has a negative charge and is found outside of the nucleus.
3) Subtract the atomic number from the mass number.
4) the number of protons
An atom contains a nucleus and electrons arranged in energy levels outside the nucleus. Each energy level is filled with electrons.
The first energy level contains only two electrons, subsequent energy levels contain a maximum of eight electrons.
The proton is positively charged, the neutron has no charge and the electron is negatively charged. The proton and neutron are found inside the nucleus while the electrons are negatively charged and found outside the nucleus.
The mass number is the sum of the number of protons and neutrons. hence the number of neutrons is the difference between the mass number and the number of protons.
The number of protons in an atom is its atomic number.
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n a covalent bond: A. Both atoms share their electrons. B. One atom accepts electrons from another. C. The atoms attract each other but their electrons do not interact. D. None of these.
Answers
Answer:
Hey there!
In a covalent bond, both atoms share their electrons.
Hope this helps :)
The correct statement is that in a covalent bond, both atoms share their electrons. The correct answer is A. Both atoms share their electrons.
In a covalent bond, both atoms share their electrons to achieve a more stable electron configuration. Covalent bonds occur between nonmetal atoms, and they involve the sharing of electron pairs between the participating atoms. This sharing allows both atoms to achieve a more complete octet (or duet for hydrogen) in their outermost energy level.
Unlike ionic bonds, where one atom transfers electrons to another, covalent bonds involve a mutual sharing of electrons. This sharing can be equal (nonpolar covalent) or unequal (polar covalent) depending on the electronegativity difference between the atoms involved.
Option B, "One atom accepts electrons from another," is not characteristic of a covalent bond. That description aligns more with an ionic bond, where one atom donates electrons to another, resulting in the formation of charged ions.
Option C, "The atoms attract each other but their electrons do not interact," does not accurately describe a covalent bond. In a covalent bond, the sharing of electrons is the basis of the interaction between atoms, and the electrons of both atoms do interact and participate in the bond formation.
Therefore, the correct statement is that in a covalent bond, both atoms share their electrons.
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What type of tide is Australia likely to be experiencing in the diagram on the RIGHT and why? In your own words explain what is happening?
Answers
Answer:
Spring tides are extremely high and extremely low. This is created when the sun and moon pull together.
Explanation:
From the diagram, the type of tide Australia is likely to be experiencing is: neap tides.
A tide can be defined as the rise and fall of water level in water bodies such as lakes and oceans, especially due to the gravitational force of attraction exerted by the Moon and Sun on planet Earth.
Generally, there are two (2) main types of a tide and these include:
High tide.Low tide.Additionally, the two (2) form of a tide are:
I. Spring tide: it occur s twice each month close to the the full and new
moons, especially when the Moon and Sun pull together.
II. Neap tide: it occurs two times in a month when the Moon is close to its first and last quarters, especially when the Moon and Sun pull at a right angle.
From the diagram, the type of tide Australia is likely to be experiencing is neap tides because it happened when the Moon is close to its first and last quarters and the Moon and Sun were pulling at a right angle.
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Please help, I don't get what does this means
3. Name the compound sodium makes with the following elements.
(a) Calcium carbonate:
Answers
Answer: hydrogen-carbonate.
Explanation:Because when carbon dioxide is passed in excess it leads to a formation of hydrogen-carbonate.
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Hey guys im gonna fail if i dont get these answer theses question right pls help me science is so hard
Answers
Answer:
Answer choice A
Please mark brainliest
Help this is science class and it’s not necessary my best class and I’m kinda slow at learning
Answers
Answer:
d
Explanation:
you can elimate a as your body has a fever to fight the infection and antibiotics are just there to assist. b is elimanated as slowing the life cycle would be modifying the germs genetic's which is not how antibiotcs work they just your bodys imune system. c is elminated as stated in the question the virus came back which not be possible if the bacteria stoped reproducing. that leaves d which means that yould likley be perscribed a diffrent anti biotic
Imagine that you are a leaf on a plant, and you realize that you are running low on supplies to do your job. You decide to text the roots to set up a delivery. Write a text message conversation between the leaf and the roots that discusses and arranges this delivery.
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Answer:
Leaf: Hey Roots, this is Leaf. I'm running low on supplies here. Can you send some over?
Roots: Hey Leaf, of course. What kind of supplies do you need?
Leaf: I need more water and nutrients. Can you send some my way?
Roots: Sure thing, we'll get on it right away. How much do you need?
Leaf: Just enough to keep me going for a few more days. Can you also send some sunlight my way?
Roots: Sorry, we can't help with that one. But we'll make sure to send enough water and nutrients to help you out.
Leaf: Thanks, Roots. You're the best. Let me know when the delivery is on its way.
Roots: Will do, Leaf. Hang in there. Delivery should be there soon.
Roots: Hi Leaf! Of course, we're here to help. Sorry to hear you're running low. We'll get right on it. How much water and which specific nutrients do you need?
Hope it helps! :)
Leaf: Thanks, Roots! I'll need a good soak of water, and I could use some extra nitrogen and potassium for optimal photosynthesis. Can you also throw in some magnesium?
Roots: Noted, Leaf. Water, nitrogen, potassium, and magnesium coming right up! We'll absorb them from the soil and deliver them through the xylem. Just hang in there!
Leaf: Awesome, Roots! Your support is much appreciated. Let's make sure this delivery boosts my chlorophyll production so I can keep producing energy for the whole plant.
Roots: Absolutely, Leaf! We're here to keep the whole plant thriving. Your health is our priority. We'll work together to ensure you have everything you need for top-notch photosynthesis.
Leaf: Thanks for being the best roots a leaf could ask for! Can't wait to feel rejuvenated and get back to making food for the plant.
Roots: You're welcome, Leaf! We're all part of the same team. Stay patient, the delivery will be on its way soon. We'll keep you updated.
Leaf: Will do, Roots! Looking forward to the delivery. Keep up the great work down there!
Roots: Thanks, Leaf! We'll keep the nutrients flowing. Take care up there and keep shining!
Leaf: You too, Roots! Catch you later!
Roots: Until next time, Leaf! Stay green and healthy!
Make a model that explains how the iron pipes and fertilizer changed into rust.
In the Before space, draw the iron pipes and fertilizer before they changed into rust.
In the After space, draw the rust.
In the During the change space, draw or describe how the iron pipes and fertilizer changed into rust.
Label your model or create a key.
Answers
Answer:
is c before space I did it
Explanation:
Step by step
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:
Balance each equation
1. _2__Na + ___MgF₂ _2__NaF + ___Mg
2. ___Mg + ___HCl ___MgCl₂ + ___H₂
3. ___Cl₂ + ___KI ___KCl + ___I₂
4. ___NaCl ___Na + ___Cl₂
5. ___Na + ___O₂ ___Na₂O
6. ___Na + ___HCl ___H₂ + ___NaCl
7. ___K + ___Cl₂ ___KCl
Answers
2)Mg+2HCL—>MgCl2 +H2
3)Cl2 +2KI—>2KCL +I2
4)2NaCl—> 2Na +Cl2
5)4Na+O2–>2Na2O
6)2Na +2HCL—>2NaCl + H2
7)2K + Cl2–>2KCL
Match these items.
1. imprint of plant or animal
original-remains fossil
2. undecayed plant or animal part
carbonized fossil
3. replaced by a mineral
petrified fossil
4. only carbon remains
cleavage
5. mountain
geology
6. from magma
metamorphic
7. from physical and chemical changes
igneous
8. sandstone
print fossil
9. helps identify rocks
landform
10. science of Earth
sedimentary
Answers
1. print fossil
2. carbonized fossil
3. petrified fossil
4. cleavage
5. landform
6. igneous
7. metamorphic
8. print fossil
9. geology
10. sedimentary
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The print fossil, original-remains fossil, petrified fossil, carbonized fossil, landform, igneous, metamorphic, sedimentary, cleavage, and geology are the respective matches as given in the question.
Print fossil is imprint of plant or animal and basically known as fossil impression. Original-remains fossil comprises of the original tissues and parts of organism and undecayed plant or animal part. Petrified fossil is replaced by a mineral. Carbonized fossil is only carbon remains. Landform is a mountain. Igneous is from magma.
Metamorphic is from physical and chemical changes. Sedimentary rocks are sandstone. Cleavage helps to identify rocks. Geology is the study of science of earth.
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