Answer:
Polystyrene is a versatile plastic used to make a wide variety of consumer products.
Explanation:
Answer:
electrons
Explanation:
protons and neutrons are found in the nucleus while electrons circle around the nucleus
Answer:
<h2>26.67 m/s</h2>
Explanation:
The speed of the car can be found by using the formula
![v = \frac{d}{t} \\](https://tex.z-dn.net/?f=v%20%3D%20%20%5Cfrac%7Bd%7D%7Bt%7D%20%20%5C%5C%20)
d is the distance
t is the time taken
From the question we have
![v = \frac{800}{30} = \frac{80}{3} \\ = 26.66666...](https://tex.z-dn.net/?f=v%20%3D%20%20%5Cfrac%7B800%7D%7B30%7D%20%20%3D%20%20%5Cfrac%7B80%7D%7B3%7D%20%20%5C%5C%20%20%3D%2026.66666...)
We have the final answer as
<h3>26.67 m/s</h3>
Hope this helps you
Answer:
See explanations
Explanation:
a. Molarity = moles/Volume in Liters = 5moles/2Liters = 2.5M in NaCl
b. Freezing Pt Depression
1. Sprinkling salt on icy surfaces
2. Using antifreeze in automobile cooling systems
3. <em>Not an application
</em>
4. Using salt to make ice cream
c. pOH = -log[OHˉ] = -log(1x10ˉ¹⁰) = -(-10) = 10 => pH = 14 – pOH = 14 – 10 = 4
d. H₂O + NH₃ => NH₄⁺ + OHˉ => Bronsted Acid is H₂O (proton donor)
B is correct. Molecules move faster when they are hotter because they have more energy. You can notice this change with your naked eye. Molecules in solids don't move. They have barely any energy. Hope this helps! ;)