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3 years ago

11

Shay constructed a scientific model of the carbon cycle. She included plants, animals, industry, fossil fuels, and the atmospher

e. Which of the following arrows belongs in Shay’s model?

1 answer:

LenKa [72]3 years ago

3 0

Answer:

no one can answer your question because you have shown no arrows.

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Metals react with ______ to form compounds that are alkaline.

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Metals react with ______ to form compounds that are alkaline.

A. metalloids

B. oxygen (O)

C. non-metals

D. hydrogen (H)

The answer is D, Hydrogen (H).

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3 years ago

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Examples of solid mixtures

elixir [45]

Salad, a bag of different colored pebbles or sand, etc

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3 years ago

Rectangular prism has a height of 3cm, a width of 7 cm, and a length of 5 cm. What is it's volume?

goldfiish [28.3K]

Volume= length•width•height

V=5•7•3

V= 105cm^3

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3 years ago

What's the formula of mercury (I) dioxonitrate III

steposvetlana [31]

<h2>Answer:</h2>

<h3>Hg2 ( NO2 )2</h3>

<h2>Explanation:</h2>

<h3>Formula of mercury ( 1 ) dioxonitrate 111 is Hg2 ( NO2 )2//</h3>

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2 years ago

How much would the temperature of 275 g of water increase if 36.5 kj of heat were added?

Andrew [12]

<u>Answer:</u> The temperature increase will be 31.70°C.

<u>Explanation:</u>

To calculate the increase in the temperature of the system, we use the equation:

$q=mc\Delta T$

where,

q = Heat absorbed = 36.5 kJ = 36500J

m = Mass of water = 275 g

c = Specific heat capacity of water = $4.186J/g^oC$

$\Delta T$ = change in temperature = ? °C

Putting values in above equation, we get:

$36500J=275\times 4.186J/g^oC\times \Delta T\\\\\Delta T=31.70^oC$

Hence, the temperature increase will be 31.70°C.

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3 years ago

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