List three evidences of physical and chemical change. ( If you know only one or two please write them anyways please)

Answers

Answer 1

Answer: Physical: ripping paper, braking a stick, cake batter mixing

Chemical: burning paper, spoiled milk, a penny turning green

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Consider the equation CO2 ---> C+ O2. What type of reaction is this? synthesis
decomposition
single displacement
double displacement

Answers

Answer:

decomposition

Explanation:

becoz it is a single compound and it under goes to give two give two or more products

Scientists found rock deep in the earth and determined it was three billion years old. This rock is most likely which type of rock?

Answers

it would be sedimentary.

Can anyone please help answer this chemistry question?

Answers

The chemical formula of benzene is C6H6, so it has six carbon (C) atoms and six hydrogen (H) atoms. Its chemical structure can be described as a hexagon ring with alternating double bonds, as shown in this illustration. The chemical structure of benzene shows that for each carbon atom, there is one hydrogen atom.

Please give me more details so I can help you

Predict the formula of magnesium argonide

Answers

Answer:The formula of magnesium argonide is H2MgO

Explanation:

Answer:

H2MgO that is the answer. have a nice day.

Which describes the molecular behavior of a solid? I THINK IT'S A, BUT IM NOT SUREA. Molecules vibrate around a fixed point.
B. Molecules are too far apart to affect each other.
C. Molecules have the greatest energy of motion.
D. Molecules are rigid and do not move.

Answers

I also think it is A

Molecules in a solid should not be able to move. Otherwise it wouldn't be a solid! So the answer is D.

Hope this helps :) ~

I need this ASAP please

Answers

Answer: C

Explanation:

Velocity is displacement over change in time. It’s a vector quantity, so velocity must include direction. You’re changing the direction, but the speed stays the same, because you are still going 20 km per hr

C. Is the answer you’re welcome

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What is the source of energy for an earthquake? A. heat from the asthenosphere B. the earth's magnetic field C. the building of volcanoes D. motion of tectonic plates

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