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weeeeeb [17]
2 years ago
10

Some baking soda and vinegar were weighed separately and the weights added together. The two substances are mixed and a chemical

reaction occurred, producing carbon dioxide, sodium acetate, and water. When the three new substances are weighed and the weights total, which of the following will be true?
A. The original weight will be more because there was more mass.

B. The new weights will be more because there is more mass

C. The two weights will be equal, because the mass is the same.

D. The new weights will be more because there are more substances.
Chemistry
2 answers:
Sliva [168]2 years ago
6 0

Answer:

It will be the same weight

Explanation:

NNADVOKAT [17]2 years ago
6 0
It would most definitely be the same weight!!!!!
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Identify the type of reaction:
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A mass spectrometer is being used to monitor air pollutants. It is difficult, however, to separate molecules with nearly equal m
tatyana61 [14]

Answer:

4.2 m

Explanation:

The energy (E) of the selector region of the spectrometer is:

E = v*B (equation 1)

Where v is the velocity, and B the magnetic field.

The force with which particle forms a curved path can be calculated by:

\frac{mv^2}{r} = qB'

Where r is the radius of the particle, m is the mass, and q the electric charge. So:

r = \frac{mv}{qB'}

For equation 1: v = E/B, so:

r = \frac{mE}{qBB'}

The two species will be separated by Δr = 0.42 mm

Δr = Δm*E/(q*B*B')

E/(q*B*B') = r/m

Δr = Δm*r/m

r = m*Δr/Δm

r is the large of curvature, m is the avarege mass = (28.0106 + 28.0134)/2 = 28.012:

r = (28.012*0.42)/(28.0134 - 28.0106)

r = 11.76504/(0.0028)

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3 0
3 years ago
Compounds A and B are constitutional isomers (same molecular formula but
Naily [24]

Answer:

Trimethylacetaldehyde

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B) C_4H_6O_2

C) C_5H_1_0O

D) C_6H_1_4

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We don have a signal in 3000 cm-1, so the carboxylic acid can be discarded. Now, is we check the info for the 1H NMR we only have 2 signals. If we only have 2 we will have a very<u> symmetric compound</u>.

By trial an error the find the compound <u>Trimethylacetaldehyde</u> (Figure 1).

3 0
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