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ArbitrLikvidat [17]
2 years ago
11

Calculate the number of moles in 8 g of water.

Chemistry
1 answer:
polet [3.4K]2 years ago
4 0

Answer:

refer the above attachment

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How many milliliters of 0.130 M HCl are needed to completely neutralize 41.0 mL of 0.107 M Ba(OH)2 solution?
Anvisha [2.4K]

54 mL Ba(OH)2x(0.101 mol Ba(OH)2/1000 mL) x (2 mol OH-/ 1 mol Ba(OH)2 )  = 0.0109 mol OH-

                                 

0.0109 mol OH-x (1mol HCl/ 1 mol OH- ) = 0.0109 mol HCl

                                                     

0.109 mol HCl/(0.130 mol/L HCl) =  0.0839 L HCl

0.0839 L HCl * 1000mL = 83.9 mL of 0.130 M HCl

3 0
3 years ago
When the first ball in a Newton's cradle is pulled back and released, it causes the final ball to move. What does this example o
bazaltina [42]

Answer:

<h3>A. </h3>

Explanation:

Mechanical energy is energy in motion is the example of mechanical energy⚡

7 0
3 years ago
234+34.1 add and round to 2 significant figures
marin [14]
Like this? 234+34.1= 268.1 then round. If it is less than 5 then you round down if it is more then you round up. Because it is less the final number would be 268.1=268
3 0
3 years ago
the position-time graph shows the motion of four people. label the lines on graph need on the motion description in this table.​
sertanlavr [38]
Line 1: straight horizontal line
Line 2: straight line at a slope
Line 3: exponential growth curve
Line 4: the topmost curve (the one that initially increases but then starts levels out)
3 0
3 years ago
Which phrases describe sedimentary rock? check all that apply.​
yuradex [85]

Answer:

Sedimentary rock, rock formed at or near Earth's surface by the accumulation and lithification of sediment by the precipitation from solution at normal surface temperatures

Explanation:

7 0
3 years ago
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