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Discussion List
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Secondary III • 3yr.
Hello,
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Thank you so much!
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Verified by AlloprofSecondary III • 3yr.Hello :)
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Thanks :)))
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Verified by AlloprofSecondary III • 3yr.
What is dimensional tolerance and what is the ± (+/-) symbol in technical drawings?
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Verified by AlloprofSecondary III • 3yr.
Hello!
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Thank you !!!
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Verified by AlloprofSecondary III • 3yr.
Hello,
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Thank you so much!
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Verified by AlloprofSecondary III • 3yr.
Hi!
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Thanks already!
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Verified by AlloprofSecondary III • 3yr.
Hello,
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Thank you so much!
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Verified by AlloprofSecondary III • 3yr.
Hi!
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Thanks :))
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Verified by AlloprofSecondary III • 3yr.
Hi,
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Verified by AlloprofSecondary V • 3yr.
Do you always have to put all views of an object in a multiple view projection? I find it long!
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Verified by AlloprofSecondary III • 3yr.
What is isometric projection used for and what is the difference with an oblique projection? Thanks for the help
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Verified by AlloprofSecondary IV • 3yr.
Hi
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Can you help me? Thank you
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Verified by AlloprofSecondary IV • 3yr.
Hydrogen has a valence electron. True or false: it is part of the alkali metal group?
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Verified by AlloprofSecondary IV • 3yr.
Hi!! Can someone explain to me the difference between temperature and heat? Thank you times a thousand !!
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Verified by AlloprofSecondary IV • 3yr.
In a periodic table, how do the electronegativity, atomic mass, ionization energy, and atomic radius of the elements vary?
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Verified by AlloprofSecondary IV • 3yr.
Hello,
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Thank you so much!
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Verified by AlloprofSecondary IV • 3yr.
Does the way the periods are arranged in the periodic table mean anything? thank you
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Verified by AlloprofSecondary IV • 3yr.
Hi!
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Balance the following equation. Then, find the rate (in mol/s) of the reaction when 20 mL of HCl takes 30 seconds before reacting and form products. *The reaction takes place at constant temperature and pressure (25 ° C. and 101.3 kPa).
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Verified by AlloprofSecondary IV • 3yr.
Hello! I'm not sure I understand why isotopes change the atomic mass of an atom ... Can you help me? Thank you very much in advance!
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Verified by AlloprofSecondary IV • 3yr.
In one of my exercises, we must find out the quantity of product of a photosynthesis reaction such as this one:
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The initial concentration of Carbon Dioxide is 62 mol / L, and the oxygen's concentration is 84 mol / L.
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Verified by AlloprofSecondary IV • 3yr.
Can we add molecules and atoms to chemical equations when we balance them?
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Verified by AlloprofSecondary IV • 3yr.
Hello,
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Thank you so much!
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Verified by AlloprofSecondary IV • 3yr.
Good evening,
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"In increasing order of concentration, order the following solutions:
Sol. A: 0.1 g / L of CaCO3 in water
Sol. B: 5% m / V solution of ethanol in water
Sol. C: solution of 3 mol of CO2 in 60 mol of air
Sol. D: solution of 560 ppm "
Thank you for your help
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Verified by AlloprofSecondary IV • 3yr.
Hello!
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Thanks already!
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Verified by AlloprofSecondary IV • 3yr.
What is the difference between a mole and the Avogadro number?
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Verified by AlloprofSecondary III • 3yr.
Can you help me with the following exercise:
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“Name the different effects of forces:
- We push on a concrete block
- We pull on a rope
- We twist a rag
- We press on a wooden plank held by two blocks
- We tear a piece of fabric “
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Verified by AlloprofSecondary III • 3yr.
How do we distinguish between elastic deformation, plastic deformation and rupture?
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Verified by AlloprofSecondary III • 3yr.
Why is my answer (c) incorrect? Isn't there an accurate front view in an isometric projection?
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a)b)c) Neither; there is no front view in an isometric projection
Answer: a)
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Verified by AlloprofSecondary III • 3yr.
What are multiple view projections useful for? It seems to me that a frontal projection would do the job just as well?
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Verified by AlloprofSecondary III • 3yr.
What is the difference between the motion transfer and transformation mechanisms? I do not understand.
