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omeli [17]
3 years ago
5

Learning calculations in chemistry

Chemistry
1 answer:
olasank [31]3 years ago
7 0
What question do u have?
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List three ways that energy could be lost between water and food
larisa [96]

Work allows energy to be transferred from one object to another. To do work, an agent must exert a force on an object over a long distance.

When work is done, energy is transferred from the agent to the object, resulting in a change in the motion of the object (more specifically, a change in the object's kinetic energy).

What is energy?

Energy is essential to human society and has numerous health benefits. However, each energy source poses some health risks. This article examines the health consequences of each major source of energy, focusing on those with the greatest global impact on disease burden. The harvesting and burning of solid fuels, coal, and biomass have the greatest health consequences, primarily in the form of occupational health risks and household and general ambient air pollution. In the world's poorest households, a lack of access to clean fuels and electricity poses a particularly serious health risk. Although energy efficiency has many advantages, energy use is essential to human society and has numerous health benefits.

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5 0
1 year ago
According to recent research ice skaters are able to glide smoothly across the ice because
Anna11 [10]
Ice is constantly subliming to form a layer of water vapor
6 0
3 years ago
The equation that shows the relationship between speed, wavelength, and frequency of electromagnetic waves is
lorasvet [3.4K]

Answer:

c = λ f

c is the speed of light, λ the wavelength in meters, and f equals the frequency in cycles per second.

Explanation:

3 0
2 years ago
A chemist is studying an unknown substance. He can break it into its elemental components only by using chemical means. Based on
Mumz [18]

The correct option is D.

In chemistry, a pure substance refers to a matter that possesses definite and constant composition with unique chemical properties. Another word for a pure substance is chemical substance. A pure substance typically contains only one type of atom or only one type of molecule. Examples of pure substances are water, sodium chloride, gold, silver, etc. In the question given above, we are told that the unknown element can only be broken down by chemical mean, this shows that the unknown compound is a chemical compound.

7 0
3 years ago
Read 2 more answers
Engineers are trying to improve a race car. Their goal is to increase the acceleration of the car using the same engine. Which c
alexandr1967 [171]

If the engineers are trying to increase the acceleration of the car, they have to decrease the mass of the car.

<h3>What is Newtons law?</h3>

The Newtons laws of motion form the basis of the discussion about motion. We know that from the second law of Newton F = ma

Thus, if the engineers are trying to increase the acceleration of the car, they have to decrease the mass of the car.

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6 0
2 years ago
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