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a_sh-v [17]
2 years ago
13

What are Properties that can be recognized only when substances react or do not react

Chemistry
1 answer:
sergiy2304 [10]2 years ago
4 0

Answer:

Chemical properties can be recognized only when substances react or do not react chemically with one another, that is, when they undergo a change in composition. A chemical property of one substance usually involves its ability to react or not react with another specific substance.

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Find the mass, in grams, of 3.758 mol CH4. ( show work )
vladimir2022 [97]

Answer:

The mass of CH4 is 60, 29 grams.

Explanation:

We use the weight of the atoms C and H for calculate the molar mass:

Weight of CH4= weight C+ 4 x weight H= 12,01 g/mol +4 x 1,008g/mol=

Weight of CH4 =16, 042 g/mol

1molCH4-----16, 042grams

3,758 mol CH4--X= (3,758 mol CH4 x 16, 042 grams)/1 mol CH4=60,285836 grams

5 0
3 years ago
23 grams of Acetaminophen is equal to how many moles?
larisa86 [58]

Answer:

0.15215407

Explanation:

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I think that a writer may use all of the following techniques to lead the reader to a flashback EXCEPT: a. a memory
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3 years ago
Describe what a geologist would observe if she poured acid on the sculpture
natita [175]

Answer:

A geologist would observe how the material that the sculpture is made out of reacts to the acid.

6 0
3 years ago
How much heat is absorbed by 15.5g of water when it's temperature is increased from 20.0C the specific heat of the water is 4.18
Anuta_ua [19.1K]
Hello!

The exercise doesn't say the final temperature, but we are going to assume that the increase is of 20 °C (The procedure is the same, just change the final temperature) To calculate the heat absorbed by water, we need to use the equation for Heat Transfer, in the following way (assuming that the heat increase is 20°C):

Q=m*C* \Delta T=15,5 g * 4,184 (J/g^\circ C) * 20 ^\circ C=1297,04 J

So, the Heat absorbed by water is 1297,04 J

Have a nice day!
7 0
3 years ago
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