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gtnhenbr [62]
2 years ago
13

Which of these outcomes is conclusive evidence that mixing sugar in water is a physical change?

Chemistry
1 answer:
lions [1.4K]2 years ago
8 0
There is no molecular change

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What volume (in L) of H2 would be collected at 22.0oC and a pressure of 713 torr if 2.65 g of zinc react according to the equati
ASHA 777 [7]

Answer: 83.74L

Explanation:

Temp. = 295K

P = 713torr = 0.938atm

Mass = 2.65g

PV = nRT

V = nRT/PV

n = Mass/Molar mass

Molar mass of Hydrogen gas = 1.00784*2= 2.0156g/mok

n = 2.65/2.0156 = 1.31469mol

V = 1.31469*0.08205*295/0.938

V = 83.74L

The volume = 83.74L

4 0
3 years ago
C2h4 3 o2 2 co2 2 h2o
Marat540 [252]
Use the question marck Moles of CO2
The the giving = 0.624 mol O2
Find the CF faction = 1 mole=  32.00 of O2

O= 2x16.00= 32.00amu ( writte this in the cf fraction)
SET UP THE CHART
Always start with the giving

0.624 mol O2    /  1mol of CO2
___________  / _____________ = Cancel the queal ( O2)
                       / 32.00c O2
                      /
                     /
Multiply the top and divide by the bottom 
0.624 mol CO x 1mol CO2 = 0.624 divide by 32.00 O2 =0.0195
You should look at the giving number ( how many num u gor ever there) 
Ur answer should have the same # as ur givin so 
= 0.0195 
= .0195 mol of CO2
3 0
3 years ago
WHAT IS AN Ionic bond​
lidiya [134]

{\orange { \mathbb{ \huge{QUESTION}}}}

WHAT IS AN IONIC BOND

\huge\boxed{\fcolorbox{red}{blue}{ ANSWER }}

\orange{\underline{\huge{\bold{\textit{\green{\bf{Ionic \:Bond}}}}}}}

kossel explained that inert gases r inert due to the electronic configuration which contains 8 electrons in their outermost shell

And other elements loss and gain electrons to form ions and to have electronic configuration same as Noble gas and to get stable

Hope\: it \:is\: helpful

Mark \:as\: the\: brainlist\: ans\: with \:thanks...

#SARDAR JI.

6 0
3 years ago
Read 2 more answers
How would the moon appear from earth if the moon did not rotate?
ivolga24 [154]
If the moon did not rotate we would see all hemispheres of the moon as it revolves around the Earth and not just the phases.
4 0
3 years ago
PLEASE HELP ME!!! NEED THE ANSWER FAST! WILL CHOOSE THE BRAINLIEST!!!
Vlad [161]
Remember that a cation will be smaller than its neutral atom, and an anion will be larger than its neutral atom. This would automatically eliminate answer choices A and D.

Also keep in mind that atomic radii decreases from left to right as you move along a periodic table. It also decreases from bottom up. 
Atomic radii increases as you move from right to left and as you go from up to down.

As bromine is higher up in the periodic table than Iodine, it would have a smaller radius. Iodine would have a larger radius.

The correct answer is B. Br
8 0
3 years ago
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