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Over [174]
2 years ago
10

Use the drop‑down menus to label the statements as either true of false. Dichloromethane is flammable. true false Methanol is fl

ammable. Concentrated sulfuric acid is corrosive. 10% sodium carbonate solution must be used in the fume hood. Benzoyl chloride is a lachrymator.
Chemistry
1 answer:
Flauer [41]2 years ago
5 0

Explanation:

Dichloromethane is flammable -  FALSE

Methanol is flammable. - TRUE

Concentrated sulfuric acid is corrosive.  - TRUE

10% sodium carbonate solution must be used in the fume hood. - FALSE

Benzoyl chloride is a lachrymator. - TRUE

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Jane and Jack have a bicycling competition Jane rides a constant speed of 12 miles per hour while Jack rides at a constant speed
MariettaO [177]

Answer:

Explanation:

I don't know how you want the conversion done. I use dimensional analysis.

Jane

12 miles / hour [1.6 km/1 mile][1000 m/1 km][1 hour / 3600 sec]

12 * [1.6 * 3600 / 1000  m/s] = 69.12 m/s

5.33 m/s      This answer is a bit shorter than using 5280 feet.

Using 5280 feet

12 miles / hour [5280 ft/1 mile] [1 m/3.281 feet] * [1 hr/3600 sec]

12 * 5280 / (3.281 * 3600)

12 *. 4470

5.36

Jack

330 feet / minute [ 1 meter / 3.281 feet] [1 minute / 60 seconds]

330 * 1/(3.281 * 60)

330 * 1/(196.86)

1.676 m/s

She's going faster than he is, no matter which method is used to do the calculation

4 0
1 year ago
Trichloromethane consists of 10.05% carbon. 0.83% hydrogen and 89.12% chlorine. if uts relative molecular mass is 119.5g . find
Delicious77 [7]

Answer:

C24H2CL213

Explanation:

C

(10.05/100)x119.5

=12x2=24

H

(0.083/100)x119.5

=1x2=2

Cl

(89.12/100)x119.5

=106.5x2=213

4 0
2 years ago
When 5.00 g of FeCl3 . xH2O are heated, 2.00 g of H20 are driven off. Find the chemical formula and the name of the hydrate
cricket20 [7]

Answer:

x551x6x255

Explanation:

if its wrong sorry

3 0
2 years ago
Read 2 more answers
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A.S OLOS kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkll

5 0
2 years ago
Find the age t of a sample, if the total mass of carbon in the sample is mc, the activity of the sample is a, the current ratio
kkurt [141]
should be 7.57*10^3 years
4 0
2 years ago
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