Two factors determine whether a substance is a solid, a liquid, or
a gas:
<span>
1) The kinetic energies of the particles (atoms, molecules, or ions) that
make up a substance. Kinetic energy tends to keep the particles moving
apart.<span>
'
2) The attractive inter molecular forces between particles that tend to draw
the particles together.</span></span>
<span />
Answer:
0.102 M.
Explanation:
From the question given above, the following data were obtained:
Volume of stock solution (V1) = 5 mL
Molarity of stock solution (M1) = 5.103 M
Volume of diluted solution (V2) = 250 mL
Molarity of diluted solution (V2) =?
The molarity of the diluted solution can be obtained by using the dilution formula as illustrated below:
M1V1 = M2V2
5.103 × 5 = M2 × 250
25.515 = M2 × 250
Divide both side by 250
M2 = 25.515 / 250
M2 = 0.102 M
Thus, the molarity of the diluted solution is 0.102 M.
Hey Everyone!! I just have to say i just took the test. So on my first attempt, these were the answers:
1- Which of the following occurs when a cool air mass meets and replaces a warm air mass?
Answer:
Cold Front
2-<span>When flying in an airplane, you are most likely in which layer of the atmosphere?
</span>Answer:
Stratosphere
3- <span>A _________ is a quick-moving ribbon of air that moves from west to east high in the atmosphere. this air current constantly bends and dips down to move weather systems around.
</span>
Answer:
Jet Stream
4- Within the atmosphere, as altitude increases,<span>Answer:
Air pressure decreases
5- </span>When warm air moves over cold air, a warm front forms. The warm air tends to rise along a gentle slope above the cold air and forms layers of clouds.
Given this information, which of the following cloud types and weather conditions would most likely result from an incoming warm front?
Answer: ((I acctually messed up on this one, but i can tell you, IT IS NOT cumulonimbus clouds and thunderstorms.))
Answer: Sedimentary rocks
Explanation:
Answer:
See explanation.
Explanation:
Hello!
In this case, when having the cationic and anionic species with the specified charges, in order to abide by the net charge rule, we need to exchange the charges in the form of subscripts and without the sign, just as shown below:
Thus, for all the given combinations, we obtain:
- Y⁻
- Y²⁻
- Y³⁻
Best regards!