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ahrayia [7]
3 years ago
12

In a ________ change, such as a change of state, the substance as a whole changes, but its underlying structure remain the same.

Chemistry
1 answer:
pav-90 [236]3 years ago
4 0

Answer:

Im pretty sure it is chemical change

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What pressure (in atm) is required to contain 0.034 moles of oxygen gas in a 5.1 L container at a temperature of 25.00C
kherson [118]

Answer:

0.16 atm

Explanation:

Let's look at the formula PV=nRT. First of all, T should be in kelvin, so let's add 273. Now solve for P so we get P = nRT/V.

Now let's plug these in...

P = (0.034 mol)(0.08206 L atm mol^-1 K^-1)(298 K)/5.1 L

After solving and rounding to sig figs we get 0.16 atm

5 0
2 years ago
All elements on the modern periodic table are areanged in order of increasing what
Firlakuza [10]
Atomic number. give me brainliest please
5 0
3 years ago
Express a fraction that is equivalent to a terminating decimals between 0.5 and 0.75.
olya-2409 [2.1K]
0.5 = 1/2 = 2/4 = 4/8 = 8/16 = 16/32…
0.75 = 3/4 = 6/8 = 12/16 = 24/32…

Then you can easily find the fractions in between are: 5/8, 9/16, 11/16, 17/32, 19/32, 21/32, 23/32...
8 0
3 years ago
in a titration 5.0 mL of a 2.0 M NaOH(aq) solution exactly neutralizes 10.0 mL of an HCI(aq) solution. What is the concentration
Hitman42 [59]
Volume of base(NaOH)= Vb =5 mL
Concentration of base(NaOH)= Mb =2 M
Volume of acid(HCl)= Va =10 mL
Concentration of acid(HCl)= Ma = ?
Now,
                                    Ma*Va = Mb*Vb
                                   Ma*(10) = (2)*(5)

                                   Ma= 1M
7 0
4 years ago
A globe is placed on your desk and you are asked to identify its physical properties. How would you describe the globe?
gogolik [260]
You could describe it's shape, color, varieties on sizes and shape of states, how it's rounded but with a top and bottom.
8 0
4 years ago
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