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Alja [10]
3 years ago
7

7. How many grams are contained in 3.9 x 1023 sulfur atoms? atoms → moles grams I

Chemistry
1 answer:
Anni [7]3 years ago
4 0

Answer: 20.775 g S

Explanation: 3.9x10^23 atoms = 0.648 mol

Atomic mass S = 32.08

S in grams = 20.775

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According to Boyle's law, the volume of a gas is inversely proportional to its pressure at constant temperature.
meriva

Answer:

true

Explanation:

7 0
3 years ago
Read 2 more answers
Question 4
nata0808 [166]

Answer:

A. She can run the same distance in a shorter amount of time.

Explanation:

Speed can be computed with the formula:

v = \dfrac{d}{t}

Where:

v = speed

d = distance

t = time

So if you look at the formula, distance there tells you how far an object has traveled, and the time tells us how long it took to cover that distance. As you can see, speed and time are <u>inversely proportional. </u>This means that as one goes up, the other goes down. So if we reduce time travelling a certain distance, the speed increases.

3 0
3 years ago
I need help pls I will give you brainlist
White raven [17]

Answer:

I think it is the second one

Explanation:

Because what the cold water did to the table salt, is that it separated its molecules dissolving the salt.

even though the rock salt was in hot water it was a bigger particle. But the big difference was only because the water temperature ️.

5 0
2 years ago
How many atoms are there in 0.32g of copper
aivan3 [116]

The number   of atoms that are in 0.32 g  of  copper  are

 3.01 x10^21  atoms


        <u><em>calculation</em></u>

<u><em>    </em></u>Step  1: find the number of moles  of Copper

       moles =  mass/molar  mass

      =  0.32  g /63.5  g/mol=0.005  moles

 Step  2:  use the Avogadro's  constant  to determine  the  number of  atom                

             in  0.005 moles of Cu

 that is   according to  Avogadro's  law   1 mole =6.02 x10^23 atoms

                                                                    0.005 moles=?  atoms

          by cross   multiplication

  =  (0.005  moles  x 6.02 x10^23 atoms) /  1 mole= 3.01 x10 ^21 atoms


7 0
3 years ago
1.2.6 1-118 Find each sum.<br><br> A. 3/5 + 1/3<br><br> B. 5/7 + 1/2<br><br> C. 1/6 + 2/8
bagirrra123 [75]

Answer:

A. 14/15

B. 17/14

C. 5/12

Explanation:

Convert all so that the denominators are the same.

A.  3/5 + 1/3  = 9/15 + 5/15 = 14/15

B.  5/7 + 1/2 = 10/14 + 7/14 = 17/14

C.  1/6 + 2/8 = 4/24 + 6/24 = 10/24 = 5/12

8 0
3 years ago
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