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WITCHER [35]
3 years ago
8

Match these items.

Chemistry
1 answer:
dolphi86 [110]3 years ago
5 0

g - Measurement of Mass

m² - Measurement of Area

m³ - Measurement of Volume

km- Measurement of Length

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If a Geiger counter that is 1 m away from a small source reads 50 counts per minute, what will its reading be 2 m from the sourc
masya89 [10]

as the amount of radiation received is proportional to 1/d^2

2m from source


for 1m readings are 50 count per minute


for 2m =   50 / (2)^2

                   50 / 4   =  12.5 count per minute

6 0
3 years ago
Read 2 more answers
Give the name of the element whose neutral atom tends to have 77 electrons.
liraira [26]

Ir, Iridium has 77 electrons when neutral.

8 0
3 years ago
Which substance has the lowest specific heat?​
ser-zykov [4K]

Answer:

ah

Explanation:

8 0
3 years ago
Energy Sources (6 points) A. Sort the types of energy into the "renewable" and "nonrenewable" columns. (1 point)
denpristay [2]

Explanation:

(A)   Renewable resources are defined as the resources that can be used again and again.

For example, wind, hydroelectric energy, geothermal etc.

On the other hand, resources which cannot be used again and again and which cannot be replaced by natural means are known as non-renewable resources.

For example, coal, petroleum etc are all non-renewable resources.

Therefore, given options are distinguished as follows.

Renewable energy : Wind, Hydroelectric, Geothermal, Biomass, and Solar.

Non-renewable energy : Coal, Petroleum, Natural gas.

(B)    Fuels which decompose for a long period of time and which arise from old life forms are known as fossil fuels.

When fossil fuels burn in the presence of air that is, combustion of fossil fuels give carbon dioxide and water.

7 0
3 years ago
Fe2O3 + 2Al = 2Fe + Al2O3 is this a redox reaction
katovenus [111]

Answer:

<h3>2Al+ Fe2O3 gives 2Fe + Al2O3. The given reaction is a redox reaction. As oxidation and reduction are taking place simultaneously.</h3>

Explanation:

like this...Identify oxidation and reduction with their agents:

<h3>•2Al+ Fe2O3 →2Fe + Al2O3</h3>

<h3>•Fe2O3 is reduced to Fe whereas Al is oxidized to Al2O3</h3>

<h3>In the above reaction:</h3>

<h3>Oxidizing agent:Fe2O3</h3>

<h3>Reducing agent:Al</h3>

I hope it's help you (◠‿・)—☆

5 0
3 years ago
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