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Tasya [4]
3 years ago
11

Which one of these samples contains the smallest number of molecule?

Chemistry
1 answer:
erma4kov [3.2K]3 years ago
8 0

Answer:

E) 1.0L of He at STP

Explanation:

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Sr3(PO4)2 is definitely Ionic
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Which one of the following ionic solids would have the largest lattice energy?! A) CaCl2 B) CaBr2 C) Csi D) NaCl E) NaF
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The answer would be d
4 0
3 years ago
The kinetic energy of a 10.3 g golf ball traveling at 48.0 m/s is
Svetach [21]

To work out the kinetic energy of an object, you use the formula:


E = 0.5 x (mass) x (velocity)^2


One important thing, though. The units MUST be consistent. Mass needs to be in kilograms, and velocity in metres per second.


To convert the mass form grams to kilograms, we need to divide it by 1000, getting 0.0103 kg. Since the velocity is already in the units we need, we can just plug the numbers into the equation to get:


E = 0.5 x (0.0103 kg) x (48.0)^2 = 11.8656 J = 11.9 J, to 3 significant figures



Hope I helped! xx

3 0
3 years ago
Could someone please help me??
gizmo_the_mogwai [7]

7.9×10^-1 Kg/m³

or, 0.79 Kg/m³

Hope it helps you...

8 0
3 years ago
Read 2 more answers
Someone help me please i’ll give brainly
drek231 [11]
<h2>Hey There!</h2><h2>_____________________________________</h2><h2>Answer:</h2>

\huge\boxed{Sublimation}

<h2>_____________________________________</h2><h2>Sublimation:</h2>

Sublimation is a process in which the solid molecules gain energy from their surrounding and they now have enough energy to overcome the force of attraction with the neighboring molecules, thus they escape into the surrounding without going through the liquid phase, that means they directly jump to the vapor phase.

<h2>_____________________________________</h2><h2>Endothermic</h2>

Those process which absorb energy from their surrounding to form the product are called endothermic process. Since the SUBLIMATION requires additional energy, it is an endothermic change.

<h2>_____________________________________</h2><h2>Best Regards,</h2><h2>'Borz'</h2><h2 />
7 0
2 years ago
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