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3 years ago

Which of the following best describes the use of a non renewable resource?

Chemistry

1 answer:

Dima020 [189]3 years ago

7 0

Answer:

Non-renewable resources, such as coal and oil, are the primary source of power in the world, and they are used to power vehicles, factories, and homes. Although affordable, they can be harmful to the environment and are one of the notable contributors to global warming.

Explanation:

source:cfi

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Disorder of the particles of a liquid decreases the freezing point. True or false

Gnoma [55]

I think its the answer is true

4 0

3 years ago

A 17.98-g piece of iron absorbs 2056.5 joules of heat energy, and its temperature changes from 25°C to 200°C. Calculate the spec

V125BC [204]

Answer: $0.65\ J/g.^{\circ}C$

Explanation:

Given

Mass of iron piece is $m=17.98\ g$

Heat absorbed $Q=2056.5\ J$

Temperature changes from $25^{\circ}C\ to\ 200^{\circ}C$ i.e.

$\Delta T=200-25=175^{\circ}C$

Heat absorbed is given by $Q=mc\Delta T\quad [c=\text{specific heat of material}]$

Insert the values

$\Rightarrow 2056.5=17.98\times c\times 175\\\\\Rightarrow c=\dfrac{2056.5}{3146.5}\\\\\Rightarrow c=0.65\ J/g.^{\circ}C$

Thus, the specific heat of iron is $0.65\ J/g.^{\circ}C$

7 0

3 years ago

Rank the speeds of sound through these materials, from greatest to least:a. Airb. Steelc. Water

s344n2d4d5 [400]

Ranking order of speed of sound is; Steel >Water > Air.

Speed of sound in normal air is 340 m/s, in water the speed is 1,430 m/s and in steel the speed is 5920 m/s.

<h3>What is speed of sound?</h3>

The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. The speed of sound in an ideal gas depends only on its temperature and composition. The speed of sound in mathematical notation is conventionally represented by 'c'. The speed of sound is variable and depends on the properties of the substance through which the wave is travelling.

learn more about speed of sound: brainly.com/question/20319989

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7 0

1 year ago

How many grams are in 4.58x1023 atoms of oxygen?

zalisa [80]

4685.34 atoms of oxygen

6 0

3 years ago

Define: 1. acids, 2. strong acids, 3. weak acids.

Reika [66]

H^+ = acid
OH^- = alkaline

Acids have a pH of below 7. The lower the number, the strongest the acid.