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Juli2301 [7.4K]
2 years ago
15

Whats principle of Aristotle's do scientist use today

Chemistry
1 answer:
Darina [25.2K]2 years ago
6 0
His observation and census.
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When compounds are formed, will its heat give off?​
mariarad [96]

Answer: It depends on the type of chemical reaction that formed the compound.

Explanation:

Exothermic reactions give off the heat to the reaction environment, so the compound feels hotter.

Endothermic reactions absorb the heat from the reaction environment and the compound feels cooler.

7 0
3 years ago
1. Which of the following statements is a consequence of the equation E=MC2
finlep [7]

Answer:

D. All of the above​

Explanation:

E = MC² is a common equation in physics.

E is energy

M is mass

C is the speed of light

The law was stated by Albert Einstein.

  • From this law, it was shown that energy is released when matter is destroyed.
  • Mass and energy are equivalent as seen in nuclear reactions where mass is converted to energy.
  • Mass and energy is usually conserved in any process and this is a subtle modification of the law of conservation of matter and energy.
  • Most of these postulates apply to nuclear reactions which generally do not follow some precepts of chemical laws.
7 0
3 years ago
A football player runs from the 50 yard line to the 20 in 3.4s seconds, what is his speed?
Crank

Answer:

8.8 yards per second

Explanation:

50 - 20 = 30 yards

30 yards/3.4 seconds = 8.8235

8 0
3 years ago
Read 2 more answers
The average mass of a kernel of popcorn is 0.125 g if one pound equals 16 oz, and 1 oz equals 28.3 g then how many kernels of po
Nikitich [7]
I won't give the answer, but here's the process: You have the weight of the object (0.500 lbs), and you want to convert that into the number of kernels. You are given the fact that 1 pound = 16 oz, and 1 oz=28.3 grams. So it should be apparent that you need to convert pounds to ounces first and then convert ounces to grams. Now that you the grams, you can easily figure out how many kernels there are because .125 grams equals the weight of one kernel.


Source: IGN
5 0
3 years ago
Read 2 more answers
Explain why gases condense when they are cooled
Sindrei [870]
We can explain this in a molecular level. We know that the difference between a gas and a liquid of the same composition is how fast their molecules are moving. So given a gas, their molecules are farther and faster when moving, but when they are cooled their bulk kinetic energy decreases. In other words their molecules start to move closer and move slower until it behaves more like a liquid molecule. This is the time when gases condense. 
4 0
3 years ago
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