Answer:
1. C. The change is easily reversible
2. A. a physical change
Explanation:
Happy Holidays
2) ____ AgNO3 + ____ Cu ____ Cu(NO3)2 + ____ Ag
3) ____ CF4 + ____ Br2 ____ CBr4 + ____ F2
4) ____ GaF3 + ____ Cs ____ CsF + ____ Ga
5) ____ N2 + ____ H2 ____ NH3
6) ____ NaF + ____ Br2 ____ NaBr + ____ F2
7) ____ CH4 + ____ O2 ____ CO2 + ____ H2O
8) ____ K + ____ Cl2 ____ KCl
9) ____ Al + ____ HCl ____ H2 + ____ AlCl3
10) ____ N2 + ____ F2 ____ NF3
11) ____ SO2 + ____ Li2Se ____ SSe2 + ____ Li2O
12) ____ NH3 + ____ H2SO4 ____ (NH4)2SO4
2) Single replacement (Substitution)
3) single replacement
4) double replacement
5) synthesis
6) decomposition
7) single replacement
8) synthesis
9) double replacement
10) synthesis
11) single replacement
12) synthesis
srry for taking a long time hope this helps ^^
The continent of Antarctica spans across the South Pole. Which of the following accurately describes its climate?
A. Currently the temperature is -21°C with 6 inches of snow accumulation.
B. Windy, cold and icy conditions will occur over the next week.
C. A polar desert with a history of low levels of precipitation.
D. Warmer than normal temperatures in the past 2 weeks.
Answer:
I think the answer is B.
PLS HELP FIND THE AVREGE KENETIC ENERGY!!
Answer: if you gogle it it will tell you the awenser
lanation:
1. Where is the water in the pot going?
2.How does E? Emulsion, the celebrity food scientist, define a physical reaction and what examples does he give?
Answer:
Explanation:
I desperately need help on my last problem! Please help!
A moving car of mass 500 kg collides with a stationary truck of mass 1500 kg, and the two vehicles lock together on impact. The combined velocity of the car and truck after the collision is 20 m/s. The velocity of the car before the collision is _______ m/s.
What is the velocity of the car before the collision?
Answer:
The car was approximately moving at 80m/s
In a physical change, the molecules inside a substance_____________before and after.
A.stay the same
B.change
C.vary between
D.travel between
A = Travel Between :)
A tennis ball forgotten on the court after match is:
A. Potential energy
B. Kinetic energy
C. Forgotten energy
Answer:
A. or C. but I think A.
Explanation on:
It's potential because it's not in motion so it can't be kinetic but somebody can pick it up any moment.
The theory of plate tectonics describes how the Earth’s lithosphere is broken into plates and these plates move over the molten magma below. Why is this considered a theory and not a law?
A. a theory is can not be proven and is based on opinion, a law is based on facts
B.A theory is developed by a single person or small group a law is developed by a large group of scientists
C. A theory can be modified as new evidence is uncovered, a law describes a relationship under certain conditions
D. A theory is developed by observing something under certain conditions and a law can be modified as new evidence is uncovered
Answer:
C
Explanation:
A theory can be changed when new evidence is found. A law doesn't change because it is universally a fact. It doesn't need new evidence to support it.
A theory can be modified as new evidence is uncovered, a law describes a relationship under certain conditions. Therefore, option (C) is correct.
What is the difference between theory and the law?
Theories and laws explain science, but they are different. Law describes what happens under certain conditions while theory explains why. This distinguishes theory from law.
Explanations of a phenomenon are referred to as theories. The workings of nature can be explained by theory. The law not only explains what happens in nature when certain conditions are met, but it can also predict what will happen in the future if those conditions are met. A theory is typically more descriptive and complicated than a law, with detailed explanations or multiple supported hypotheses.
Therefore, the theory of plate tectonics is considered a theory.
Learn more about theory and law, here:
https://brainly.com/question/9266219
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Most of the sun's radiation passes through Earth's atmosphere and is absorbed by land and water. The diagram below shows some of the ways in which air is
What kind of energy transfer is shown by the movement of the air labeled B in the diagram?
Answer: B
Explanation:
What empirical evidence has led us to believe in the theory of plate tectonics?
A.The cluster ofvolcanoes in certain region
B.Scientists have discovered fossil evidence that the earth was mostly covered with ice at one time.
C.Scientists have discovered fossil evidence of organisms that are now extinct
D.Scientists have discovered tropical fossils in Antarctica
Running is an example of potential or kinetic energy
give me 4 examples of newtons 1st law 2nd law adn 3rd law
pls be creative this is due tomorrow and creativity is counted
Answer:
1st Law: A book lying on the table remains at rest as long as no net force acts on it.
A rolling ball on rough surface or ground stops earlier than on the smooth surface because rough surfaces offer more friction than a smooth surface.
A stone in the ground is in a state of rest.
The marathoner continues to run several meters beyond the finish line due to the law of inertia of his career.
2nd Law: Pushing a broken down car among more people will make the car move faster.
A lady teaches two children to ride a bicycle: one 4-year-old and the other 10-year-old, so that they arrive at the same place, they will have to exert more force when pushing the 10-year-old boy because his weight is greater.
A car needs a certain amount of horsepower to be able to drive on the road.
Imagine two people, one with more force than the other, pushing a table, in different directions. The person with greater strength is pushing towards the east, and the person with less force towards the north.
3rd Law: If one billiard ball hits another, the second will move with the same force as the first.
A man deflates a balloon; the force with which the air comes out causes the balloon to move from one side to the other.
A child wants to jump to climb a tree (reaction), he must push the ground to propel himself (action).
Hammer pushes a nail.
Hope that helps :)
Explanation:
CAN SOME WONE HELP WITH THIS PLEASS?
What are characteristics of eukaryotic organisms?
Answer:
Eukaryotic cells are very diverse in shape, form and function. Some internal and external features, however, are common to all. These include a plasma (cell) membrane, a nucleus, mitochondria, internal membrane-bound organelles and a cytoskeleton
Explanation:
Fill in the blank with the correct response.
A(n)
provides work samples for artists and illustrators.
Answer:
the answer is portfolio
Explanation:
Explain why some people see objects nearby clearly, but objects far away appear blurry. Also, explain how this condition can be corrected.
EDGE 2020
Myopia
Explanation:
myopia is a common vision condition in which you can see objects near to you clearly, but objects farther away are blurry. It occurs when the shape of your eye causes light rays to refract incorrectly, focusing images in front of your retina instead of on your retina. It can be corrected corrected with eyeglasses, contact lenses or refractive surgery.
Answer:
the first guy is correct i think
sorry but i needed points
Explanation:
What front does this symbol represent on a weather map?
Answer:
cold warm or both dont really know
Explanation:
Natalia began to draw a diagram to compare bases and acids.
Two overlapping circles with the word bases above the left circle and acids above the right circle. There is an X in the left circle in the portion, which is not part of the overlap.
Which label should be written in the area marked X?
conducts electric current
produces OH– ions
tastes sour
reacts with carbonates.
Answer:
first one
Explanation:
Answer
conducts electric current
Explanation:
Help please, thank you!
Amir and Gracie left some evidence of breakfast behind. Luckily, some of it can be changed back. What does Mosa write down as clues that a substance will easily change back?
Answer:
You could say that it was not a chemicly change because that is when you say this is just a example that if you cook eggs you cant un-cook them
Explanation:
I need help on this please!
Answer:
i think it is no interference
Explanation:
because both of the arrows haven't interfered. If you look up some of the pictures of each answer choice that is on your question, it will have that picture shown.
please help! the first person to answer this correctly will get a brainlist
The Conference for Food Protection is a powerful regulatory authority that profoundly influences model laws and regulations among all government agencies.
True
False
Answer:
true
Explanation:
I took the quiz before so hope it helped :)
help please
whats an example of kinetic energy
Answer:
A semi-truck travelling down the road has more kinetic energy than a car travelling at the same speed because the truck's mass is much more than the car's. A river flowing at a certain speed comprises kinetic energy as water has certain velocity and mass.
Explanation:
Answer:
An airplane has a large amount of kinetic energy in flight due to its large mass and fast velocity.
Explanation:
You are riding a bicycle home from school. You average 5 meters per second and you are headed south.
What motion can you determine from this data? Select all that apply.
A
Velocity
B
Acceleration
Distance
Speed
