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3 years ago

Which of these describes something a civil engineer would design?

Chemistry

2 answers:

gregori [183]3 years ago

8 0

B) a bridge to connect two landmasses over stretch of water

Explanation:

A civil engineer would easily and accurately design a bridge that connects two landmasses over a stretch of water.

Civil engineering deals with construction, design and maintenance of structures. There are different aspects of civil engineering which are transportation, structural, Geo-technical and water engineering.

Most buildings, bridges and dams are products of civil engineering works.
Cybersecurity analysts are saddled with preventing social networks from gathering data from computers.
Computer engineers develops new models that are lighter and efficient.
Mechanical engineers are responsible for making military grade missiles.

Learn more:

Human impact on the environment brainly.com/question/3995505

#learnwithBrainly

pishuonlain [190]3 years ago

6 0

Answer:

<em>The correct option is B) a bridge to connect two landmasses over a stretch of water.</em>

Explanation:

A civil engineer is a person who deals with the designing and construction of infrastructure projects like the construction of roads, buildings, bridges, airports, tunnels etc. Civil engineering is one of the most oldest disciplines in engineering and it is broken into many sub-disciplines. A civil engineer might work for a private or a government-based organization. Hence, among the options mentioned in the question, the construction of a bridge is the most likely function of a civil engineer.

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Explain why the number you calculated for Avogadro’s number may match the actual number of 6.02 x 1023 – be sure to provide a de

tiny-mole [99]

The reason why the number I calculated for Avogadro’s number may match the actual number is because the comparison of the number of molecules in the top layer to the number of moles in the top layer is the definition of Avogadro’s number. It is the amount of molecules in a mole <span>of any given substance.</span>

3 0

3 years ago

Read 2 more answers

A 0.500-g sample of chromium metal reacted with sulfur powder to give 0.963 g of product. Calculate the empirical formula of the

IgorC [24]

Answer: The empirical formula for the given compound is $Cr_2S_3$

Explanation : Given,

Mass of product = 0.963 g

Mass of Cr = 0.500 g

Mass of S = 0.963 g - 0.500 g = 0.463 g

To formulate the empirical formula, we need to follow some steps:

Step 1: Converting the given masses into moles.

Moles of Cr = $\frac{\text{Given mass of Cr}}{\text{Molar mass of Cr}}=\frac{0.500g}{52g/mole}=0.00962moles$

Moles of S = $\frac{\text{Given mass of S}}{\text{Molar mass of S}}=\frac{0.463g}{32g/mole}=0.0145moles$

Step 2: Calculating the mole ratio of the given elements.

For the mole ratio, we divide each value of the moles by the smallest number of moles calculated which is 0.00962 moles.

For Cr = $\frac{0.00962}{0.00962}=1$

For S = $\frac{0.0145}{0.00962}=1.5$

To make in a whole number we are multiplying the ratio by 2, we get:

The ratio of Cr : S = 1 : 1.5

The ratio of Cr : S = 2 : 3

Step 3: Taking the mole ratio as their subscripts.

The ratio of Cr : S = 2 : 3

Hence, the empirical formula for the given compound is $Cr_2S_3$

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4 years ago

Given the balanced equation below, calculate the moles of aluminum that are needed to react completely with 13.2 moles of FeO?

irina [24]

The number of moles of aluminium that are needed to react completely with 13.2 moles of FeO is 8.8 moles

calculation

2Al + 3FeO → 3aFe +Al2O3

by use of of mole ratio of Al: FeO from equation above = 2:3 the moles of Al is therefore

= 13.2 x 2/3=8.8 moles of Al

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3 years ago

Use the reaction, which produces ammonia, to answer the question.

zepelin [54]

This problem is providing us with the chemical equation depicting the production of ammonia from nitrogen and hydrogen at equilibrium and asks for the correct change when the concentration of nitrogen is increased. At the end, the answer is the forward reaction would increase to start reducing the concentration of N2.

<h3>Chemical equilibrium</h3>

In chemistry, chemical reactions not always reach a 100-% conversion when reactants get in contact in order to carry out the chemical reaction. Thus, there is a point wherein the concentrations remain the same and is called equilibrium.

In such a way, for this problem, we have the following chemical reaction at equilibrium:

$N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g)$

Now, according to the Le Ch.atelier's principle, an increase in the concentration of any species, shifts the equilibrium away from it, which means that if we increase the concentration of nitrogen, a reactant, the forward reaction will be favored.

Thereby, the correct answer is "the forward reaction would increase to start reducing the concentration of N2".

Learn more about chemical equilibrium: brainly.com/question/26453983

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2 years ago

Which of the following represents a synthesis reaction?

gayaneshka [121]

Answer:

The answer to your question is the second one

Explanation:

AC + B → AB + C

This is not the right answer, the reaction shown here is a single replacement reaction in which one element replaces another element that is part of a compound.

A + B + C → ABC

This is the right answer because in synthesis reactions two or more reactants bound to form only one product.

ABC → A + B + C

This answer is incorrect because this is an example of a decomposition reaction in which one reactant forms two or more products.

AB + CD → AC + BD

This is an example of double replacement reaction in which the cations and anions of the reactants are interchanged.

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4 years ago