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solmaris [256]
3 years ago
5

What type of substance is steel

Chemistry
2 answers:
kherson [118]3 years ago
6 0
Carbon and iron! brainliest?
MrRa [10]3 years ago
4 0

Answer: steel is an alloy of carbon and iron

Explanation:

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Future of geothermal energy
s2008m [1.1K]

Answer:

Explanation:

Among the most recent systems for the exploitation of geothermal energy, the most promising are the third generation ones, also called EGS (Enhanced Geothermal Systems). Their technology allows to dramatically improve energetic efficiency of both geothermal wells and dry rocks.

Present and Future of Geothermal Energy - Cividachttp://www.cividac.com › news › present-and-future-of-g...

7 0
3 years ago
Does anybody know how to do q4. Please show working out thanks.
insens350 [35]

Answer:

% purity of limestone = 96.53%

Explanation:

Question (4).

Weight of impure CaCO₃ = 25.9 g

Molecular weight of CaCO₃ = 40 + 12 + 3(16)

                                              = 100 g per mole

We know at S.T.P. number of moles of CO₂ = 1 and volume = 22.4 liters

From the given reaction, 1 mole of CaCO₃ reacts with 1 mole or 22.4 liters of

CO₂.

∵ 22.4 liters of CO₂ was produced from CaCO3 = 100 g

∴ 1 liter of CO₂ will be produced by CaCO₃ = \frac{100}{22.4}

∴ 5.6 liters of CO₂ will be produced by CaCO₃ = \frac{100\times 5.6}{22.4}

                                                                              = 25 g

Therefore, % purity of CaCO₃ = \frac{\text{Weight calculated}}{{\text{Weight given}}}\times 100

                                                 = \frac{25}{25.9}\times 100

                                                 = 96.53 %

7 0
3 years ago
Is mixing salt into water an example of a chemical synthesis reaction?
enyata [817]

Answer:

Therefore, dissolving salt in water is a chemical change. The reactant (sodium chloride, or Na-Cl) is different from the products (sodium cation and chlorine anion). ... In contrast, dissolving a convalent compound like sugar does not result in a chemical reaction.

Explanation:

8 0
3 years ago
An increase in the temperature of a liquid decreases the rate of<br> evaporation, true or false?
LekaFEV [45]

Answer:

False

Explanation:

The increase in the temperature of a liquid also increases the rate of evaporation, as the same for the other way around.  As intermolecular force increase rate of evaporation decreases. This happens because intermolecular force make it less likely for the molecules on the surface to escape from liquid and become vapour gas. As temperature increases rate of evaporation increases.

6 0
3 years ago
What action will result in a product with new chemical properties
jeka94
Your answer is popping popcorn

hopes this helps
5 0
3 years ago
Read 2 more answers
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