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goldenfox [79]
3 years ago
5

Which of the following processes involves only physical change? A. decay B. sublimation C. digestion D. combustion

Chemistry
2 answers:
mote1985 [20]3 years ago
8 0

Answer:

\huge \boxed{\mathrm{B. \ sublimation}}

Explanation:

Sublimation is a process that involves only a physical change. Sublimation is a change in a state of matter from solid state to gas state. An example of sublimation can be dry ice, from its solid state to gas state.

grigory [225]3 years ago
5 0
B. Sublimation
Sublimation is the change of a liquid from the liquid state to the gas state. That’s why it’s only involves a physical change. Also, you can go back to the liquid stage.
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What is the mass of the object?
galben [10]

Answer:

37.3

263.5

Explanation:

The scale measures hundreds of units, tens of units, units, and parts of units (1 decimal place.

Scale 1

Hundreds 0 * 100 = 0

Tens: 3 * 10 = 30

Units: 7 * 1 = 7

1/10 unit = 3* 0.1 = 0.3

Total 30 + 7 + 0.3 = 37.3

Scale 2

Hundreds 2 * 100 = 200

Tens: 6 * 10 = 60

Units: 3 * 1 = 3

1/10 unit = 5* 0.1 = 0.5

Total = 200 + 60 + 3 + 0.5 = 263.5

7 0
3 years ago
Rasheed calculates that his chemical reaction should produce 4 moles of product, but when he does the experiment, he gets only 3
Brut [27]

Answer:

The answer to your question is 75%

Explanation:

Data

Theoretical production = 4 moles

Experimental production = 3 moles

Percent yield = ?

Formula

Percent yield = \frac{Experimental production}{Theoretical production} x 100

Substitution

Percent yield = \frac{3}{4} x 100

Result

Percent yield = 75 %

8 0
3 years ago
Ed records the temperature of two pots of water. Pot X has a temperature of 56 degrees Fahrenheit, and pot Y has a temperature o
7nadin3 [17]

Answer:

Itś A) The water in pot X has more kinetic energy than the water in pot Y.

Explanation:

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Answer & Explanation:

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3 years ago
Vamos para playa oh te rajas lol
Anuta_ua [19.1K]

Answer:

let's go to the beach or u will relax lol

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3 years ago
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