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notsponge [240]
2 years ago
9

Complete the sentences

Chemistry
2 answers:
asambeis [7]2 years ago
6 0

Answer:

xcvbn

Explanation:

nkj

weqwewe [10]2 years ago
3 0

Answer:

what he said

Explanation:

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If you are using a thermometer you are measuring the
Slav-nsk [51]
Temperature of somewhere.
6 0
3 years ago
Can you help me with three please? We’re balancing electrons
Aneli [31]

Answer:

Explanation:

I did this class yesterday give me like 10min imma find my anwsers

4 0
2 years ago
A compound with molecular formula C6H15N exhibits a singlet at d 0.9 ppm (1H), a triplet at 1.10 ppm (3H), a singlet at 1.15 ppm
Triss [41]

Answer:

CH3 - CH2 - NH - C(CH3)3

Explanation:

The 1HNMR is the acronym for Proton nuclear magnetic resonance and it is used in chemistry or Chemical laboratory for the analysis and identification of compounds.

In order to be able to answer the question accurately you have to have the tables containing all the values for chemical shift. The Chemical shift is measured in ppm and it occur due to Resonance frequency variation.

From the table, a singlet at 1.15 ppm (9H) is - C(CH3)3.

A singlet at d 0.9 ppm (1H) shows the presence of a secondary amine group, that is -R2NH group.

A triplet at 1.10 ppm (3H) shows that we have;

CH3- CH2-

A quartet at 2.6 ppm (2H) shows that we have;

-CH2 - CH3.

Therefore, joining all together we have;

CH3 - CH2 - NH - C(CH3)3.

Kindly check attached file for the picture of the structure.

5 0
2 years ago
3
Zina [86]

Answer:

Explanation:

n CaCO3 = mass / m.wt

             = 500  /( 40 + 12 + 16x 3)

           =   5 mole

n CaO = 5 moles  ( from the balanced equation we have 1:1 moles )

mass of CaO = nCaO X m.wt

                       5 x(  40 +16 )

                 =   280 grams

5 0
3 years ago
In the equation shown, what are the reactant(s)?
Vladimir [108]
C3H8 + O2 (please give me brainliest$
4 0
2 years ago
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