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Damm [24]
3 years ago
12

Below are the steps of the engineering process (not necessarily in order): 1) Know the background 2) Do the work 3) Make a plan

4) Identify a need 5) Evaluate and redesign 6) Test the results What is the correct order for these steps ? APEX
Chemistry
1 answer:
LuckyWell [14K]3 years ago
3 0

Answer:

4 - 1 - 3 - 2 - 6 - 5

Explanation:

During an engineering process, first, we need to identify the problem, or the need because the process only will occur because of some need. Then, it's necessary to know as much as possible about the problem and the things that already exist or already were tested to solve it. Knowing the background will make the work easy.

After that, it's necessary to plan the things we'll do, knowing the costs, the time needed for activities, how many people will be necessary for each step, etc. It's really important to make a plan. Then, do the work, following the plan. Thus, the process must be tested. During the test of the results, some problems must be found, so it's time to evaluate and redesign the process, to solve these problems found.

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Determine the oxidation number of the element "J" in H3JO2-
igor_vitrenko [27]

Answer:

Oxidation number:

3*1+ oxidation number of J+2*-2= -1

Oxidation number of J = 0

5 0
3 years ago
A student added 5.350 g of ammonium chloride to 100.00 cm3 of water. the initial temperature of the water was 25.55℃ but it decr
Ket [755]
Answer is: 16,56 kJ.
1) m(NH₄Cl) = 5,35g.
m(H₂O) = d(H₂O) · V(H₂O) = 1g/cm³ · 100cm³ = 100g.
ΔT = 25,55°C - 21,79°C = 3,76°C.
Q = m(solution) · C(specific heat capacity of water) ·ΔT.
Q = 105,35g · 4,18 J/g·°C · 3,76°C = 1655,76J.
2) m(NH₄Cl) = 1mol · 53,5g/mol = 53,5g.
m(water) = d(H₂O) · V(H₂O) = 1g/cm³ · 1000cm³ = 1000g.
m(solution) = 1053,5g, ten times more than first solutn.
Q = 10 · 1655,76J = 16557,6J  = 16,56 kJ.
5 0
3 years ago
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How does a planet’s motion affect its length of day and year?
rosijanka [135]

Answer:

Every location on Earth experiences an average of 12 hours of light per day but the actual number of hours of daylight on any particular day of the year varies from place to place.

5 0
3 years ago
Is density a chemical or physical property of a substance?
pychu [463]

Answer:

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I hope this helps you understand! <3

8 0
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Is salt water a element
Likurg_2 [28]

no  an example of an element is like hydrogen oxygen carbon

7 0
3 years ago
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