(HELP FAST)Which of the following always changes when a substance undergoes a
chemical change?
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Related Questions
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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It is a generator since the electromagnetic radiation makes the coil and rod to spin
What type of person studies and collects data on the weather?
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Medical diagnosis and what are common uses of radioactive elements in health care?
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Answer:
nuclear medicine
Explanation:
A boy is riding a bike. He applies the brakes and slows down. How has his momentum changed and why?
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Answer
I'm Thinking it's the amount of force Applied to the Bicycle
Explanation:
For Example, Let's say I was Riding a Bicycle and I Applied Full force My Bicycle Would Probably slowdown in fact I know it would because I've Rode on a bicycle before and as soon as I applied force it slowed down A bit.
I Hope This Helped Have a Nice Day!
as I know my physics teacher would not approve of the previous answer.
Momentum is the product of the mass and velocity of an object
Momentum P=mv= units kg.m/s
M=mass
v=velocity
So if velocity decreases (mass remaining constant) momentum will decrease.
If you think about it it’s more difficult to stop a train than a car because a car has lesser momentum than the train
The forces from below the surface that change the surface of the earth are
Erosion
Earthquakes
Volcanoes
Living things
Weathering
Faulting
Folding
Glaciers
Answers
Correct! The forces from below the surface that change the surface of the Earth include:
1. Erosion: The process of wearing away the Earth's surface by wind, water, ice, or other geological agents.2. Earthquakes: Sudden movements of the Earth's crust caused by the release of energy in the Earth's interior, resulting in shaking and sometimes surface displacement.3. Volcanoes: Openings in the Earth's crust through which molten rock, gases, and ash erupt onto the surface. Volcanic activity can lead to the formation of new landforms and alteration of existing ones.4. Weathering: The breakdown and alteration of rocks and minerals at or near the Earth's surface due to various physical, chemical, and biological processes.5. Faulting: The movement and displacement of rock layers along a fault line, typically caused by tectonic forces. This can result in the formation of new landforms or changes in the existing ones.6. Folding: The bending or warping of rock layers due to tectonic forces, resulting in the formation of folds and mountain ranges.7. Glaciers: Large masses of ice that slowly move over the Earth's surface, eroding the land and shaping the landscape through processes like plucking and abrasion.8. Living things: While not a direct force from below the surface, living organisms can play a role in shaping the Earth's surface through activities such as burrowing, root growth, and vegetation cover.These forces, both natural and influenced by living organisms, contribute to the continuous changes in the Earth's surface over time.
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Answer: Incorrect
Explanation: Glaciers don't form from forces from below
please help me 7th grade science
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.
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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.
What was the low temperature for hurricane Katrina?
Answers
Answer: 90 degrees F
Explanation:
pls help really easy just search the questions f u need to
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Answer:i cant seee
Explanation:
none
How to work out the relative mass of potassium? What is the calculation? ( explained very easily )
Answers
Answer:
39
Explanation:
Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.
———————————
(1/12)th Mass of one C12 atom
What Do You Notice About The Density Of The Floating Objects
Answers
Answer:
the object should have 1g/cc or 1gram per cubic centimeter should be it's density to float
Answer:
To predict if the object will float or sink in water, compare the mass to the volume. If themass is larger, the object will sink.If the density is greater than 1g/cm3, the object will sink. If the density is less than 1 g/cm3, the object will float.
Explanation:
What is force?????????
Answers
Answer:
a. s s
Explanation:
thats the bottom line cut stone cold said so
Answer:
Force is a push or pull upon an object from the object's interaction with another object.
Explanation:
Whenever there is an interaction between two objects, there is a force upon each of the objects.
Hope this helps and have a great day!
How did this piece of evidence change your thinking about the channel on Mars? Explain your ideas below.
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The piece of evidence changed thinking about the channel on Mars because it shows that the rock was formed next to flowing water as such rock formations exist on Earth and were formed by flowing water.
Was there flowing water on Mars ?The geologic process that could have created the channel on Mars is water moving. We can infer from the image that water running across the terrain on Mars created channels similar to those on Earth.
We can claim that the flowing of water creates the channels on Mars because when the water runs for a long period from the same region, it takes the sediments and creates channels.
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1. In your own words, explain the difference between a font and air mass.
2. If the weather was briefly stormy, then changed into colder weather, what type of font most likely came through. Explain
3. How does the water cycle affect weather.
THIS IS WORTH A LOT OF MY GRADE GIVING BONUS POINTS AND BRAINLESS FOR ANSWERS
Answers
Answer:
1. An air mass is a body of air with a mostly constant moisture and temperature over a significant altitude. Air masses usually cover up to millions of square kilometers. A front is the boundary where two air masses with different temperature and moisture meet.
2. A cold front most likely came through because briefly stormy weather will be warmer and moister than a cold front would.
3. The water cycle is responsible for the rain, snow, and ice that falls. It also affects the wind, so it will all affect the weather.
Explanation:
I hope I did this right. Hope it helps
To make a 450g solution with a mass by mass concentration of 7%, how much salt and water do you need to mix?
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Answer:salt: 31. 5g
water: 418. 5g
Explanation
Answer:
salt: 31. 5g
water: 418. 5g
Explanation:
what are examples of attractive and repulsive forces?
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30 POINTSSSSSSSSSSSSS how is increasing the amount of sunlight most likely to affect an ecosystem? A. by increasing soil moisture B. by decreasing photosynthesis C. by increasing plant growth D. by decreasing the food supply
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Answer:
here
Explanation:
The increase in sunlight up to a limit might result in an increase in the photosynthesis process as well as in transpiration. More amount of energy will be produced by plants.
Relationship between boiling temperature and vapour pressure
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Answer:
The higher the vapor pressure of a liquid at a given temperature, the lower the normal boiling point of the liquid.
Explanation:
CO2(g) + NH3(g) + H2O(l) → NH4HCO3(s) witch type of reaction plzz within 1 hour
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pls help por favor i dont understand
Answers
Answer:
It's C!
Explanation:
when the amplitude was doubled the energy went up 4x
Did it already
PLEASE HELPP
Science
Data
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Kaylee is studying antibiotic factors in a sea ecosystem. What factors could she include in her study? Select all that applies.
a.growth of algae
b.temperature
c.number of fish
d.pressure
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How is power defined?
A. the quantity of work accomplished
B. the direction of the work
C. the total distance an object is moved
D. the rate at which work is accomplished
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Answer:
power is the rate at which work is accomplished
Could hydrogen fuel replace fossil fuels in the future? Why or why not?
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Answer:
Hydrogen is the most plentiful element in the universe, so there’s no chance for human consumers to instantly use it up. So yes, hydrogen has the possibility of being the fuel source of the future.
Explanation:
Chlorine and Oxygen
Formula:
Name:
Bond:
What is it:
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Name: Chlorate
Bond : Single (I think)
What is it : usually a gas
Balance the given equation
2Cu + _____ = CuO + _____
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Answer:
2Cu + O =CuO + Cu
by the way
Matter is made up of tiny particles
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Answer: Matter is made up of extremely small particles called atoms. An atom is the smallest possible unit of matter that exhibits all the properties of that matter.
Explanation:
Answer:
Matters are made up of tiny particles that are called atoms.
Explanation: Atoms are small tiny particles that posses all the properties of particles
List 2 evidences for climate change.
This is 6th grade science. Amplify.
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Answer:
Global Tempurature is rising
Sea level is rising
Explanation:
This is evidence of climate change. Depending on where you live it could be different like in florida there was a drought.
1. our sea level is rising my a lot
2. our global temperature has changed a lot over the years as well.
How does mercury find its way into our ecosystems?
a.) Found in paints
b.) Found in solder joints of copper
c.) Burning coal
d.) Insulation in older houses
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The initial water volume in this container was 10.0 mL. When the key was submerged, 3 volumes of displaced water were collected: 0.7 mL, 0.8 mL, and 0.9 mL. What is the volume of the key?
How did you find the volume?
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The volume of the key is 0.8 mL.
Volume of objects using sinker methodAn object that floats on water will displace its own volume. In the same vein, an object that sinks in water will displace its own volume.
Thus, in order to find the volume of an object that sinks in water, measure the volume of water that it displaces.
In this case, the water displaced by the key was measured 3 times. The average of the 3 readings will give the volume of the key.
Volume of the key = 0.7 + 0.8 + 0.9/3 = 0.8 mL
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Answer:
Explanation:
so 10.0ml -3ml
0.7+0.8+0.9ml = 0.0024 liters
7: How many times can a volcano erupt?
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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: