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zzz [600]
3 years ago
11

In a ________ reaction, a single uncombined element replaces another element in a compound. synthesis double displacement single

displacement
Chemistry
1 answer:
kicyunya [14]3 years ago
7 0
In   a single displacement  / replacement reaction   a  single  uncombined  element   replaces  another  element   in  a  compound.

  Single   replacement   is  type  of chemical  reaction  where  an  element  react  with   a  compound  and take   the  place  of   another element  in  that  compound.
example  of  this  type  of  reaction  is 
Zn+ 2HCl  ----->  Zncl2  +  H2
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Answer:

72.6% Error

Explanation:

% error = \frac{Real-Measured}{Real} * 100

\frac{58.44-16}{58.44} *100= 72.6

58.44 is the weight of NaCl

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3 years ago
An atom has three full orbitals in its second energy level.
ICE Princess25 [194]
Orbitals am only hold two electrons each, so 3 orbitals can hold 6 electrons
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Ivan

Answer:

deep frying,pan frying,smoking,grilling,and microwaving are some method of cooking that is not easily digested

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7 0
3 years ago
Calculate the values of ΔU, ΔH, and ΔS for the following process:
kykrilka [37]

The values of the changes are

ΔH = 46.44kJ

Δu =  43.34Kj

ΔS = 126.6 J/K

<h3>How to find change in H</h3>

= 1 mol + 75.3 (100 + 273) - 25 + 273 + 1 * 40.79

= 5.6475 + 40.79

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<h3>How to find change in S</h3>

1 mol + 75.3 x ln 373/298 + 1 mol x 40.79

= 0.1263

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<h3>How to find the change in U</h3>

46.44 - 0.00831 * 373

= 43.34Kj

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5 0
2 years ago
A sample of pure iron has a mass of 5.00g. What's the calculation of its volume??? Please help me or my moms gonna freak
GarryVolchara [31]
Since the iron is pure, we can look up its density value online and will always be true. This density value of iron is 7.87g/L. Now, we can use the density formula (D = m/V) and rearrange it to solve for V. This new equation is then V = m/D. Next, we plug in our known values and solve for V (5.00g/7.87g/L). This gives us our final answer of 0.635L (three sig figs due to the three sig figs in the provided mass).

Hope this helps!
5 0
3 years ago
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