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ZanzabumX [31]
3 years ago
12

Using a meter stick and a ruler with millimeter and centimeter gradations, measure the following objects and record their measur

ements. Select the correct measurement unit for each. Your teacher will check your answers.
Object Measurement
file card ____________
height of a student desk ____________
height and width of notebook paper ______, ______
height and width of nearest door ______, ______
your own height ____________
length of your foot ____________
width of a quarter ____________
length of a pencil ____________
length of a toothpick ____________
distance from floor to ceiling ____________





















PLS HELP ME
Chemistry
1 answer:
Troyanec [42]3 years ago
4 0

Explanation:

you basically just need to measure things with a ruler and write the measurment of the thing in the blank space

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D. a compound can only be separated into its components by chemical means
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Which linkages in starch and triglycerides result from condensation reactions? glycosidic bonds in starch and ester bonds in tri
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Draw the structure(s) of the major organic product(s) of the following reaction. 1. lithium diisopropylamide / hexane 2. 1 eq. C
Jobisdone [24]

Answer:

See explanation below

Explanation:

You are not providing the starting material, however, I manage to find a similar question to this, so I'm gonna use it as a basis to help you answer yours.

Now let's analyze what is happening in the reaction so we can predict the final product.

We have a ketone here, reacting at first with LDA. This is a very strong base that is commonly used in reactions with ketones and aldehydes to promove a condensation. To do this, as LDA is a strong base it will occur firts an acid base reaction, substracting the most acidic hydrogen in the molecule (Which in this case, is the Beta hydrogen of the carbonile). This will cause an enolate formation.

Then, this enolate will react with the CH3I and form a new product. The final result would be a ketone with a methyl group now attached. In the picture 2, you have the mechanism and final product.

Hope this helps

6 0
3 years ago
In the haber process, ammonia is synthesized from nitrogen and hydrogen: n2 (g) + 3h2 (g) → 2nh3 (g) δg° at 298 k for this react
allsm [11]

Answer:

e- 7.25 x 10³.

Explanation:

∵ ΔG = -RTlnK,

where, ΔG is the free energy change.

R is the general gas constant (R = 8.324 J/mol.K).

K is the equilibrium constant of the reaction.

  • For the reaction: <em>N₂(g) + 3H₂(g) → 2NH₃(g),</em>

K = (PNH₃)²/(PN₂)(PH₂)³ = (0.65)²/(1.9)(1.6)³ = 5.43 x 10⁻².

∵ ΔG = -RTlnK.

∴ ΔG = -(8.314 J/mol.K)(298 K) ln(5.43 x 10⁻²) = 7.218 x 10³ J/mol.

3 0
3 years ago
Where do convection currents form?
pshichka [43]

Answer:

I think it's C

<u>Convection currents are identified in Earth's mantle. Heated mantle material is shown rising from deep inside the mantle, while cooler mantle material sinks, creating a convection current. It is thought that this type of current is responsible for the movements of the plates of Earth's crust.</u>

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