Answer:
I didn't do the observation so I can't help sorry
Answer:
14.7 lbs
Explanation:
Air pressure is the weight of the air above us. It is approximately 14.7 pounds or lbs per square inch at sea level. It means that an air column weights 14.7 lbs, 1 square inch in diameter, reaching all the way up to the top of the atmosphere.
Answer:
The molecular structure affects solubility mainly biased on its polarity or bonded ions.
Explanation:
Polar molecules will better interact with the water molecules and will dissolve easier. Nonpolar molecules can dissolve if they are small enough, however they don't interact well with the polar molecules. Bonded ions, such as NaCl split into a cation Na and an anion Cl which the positive charge on the Na will be attracted to the oxygen, and the negatively charged Cl will be attracted to the positive Hydrogen.
**Remember this rule, like dissolves like, meaning nonpolar dissolves nonpolar and polar dissolves polar.
I hope this helps!
Answer:
Yes.
Explanation:
If you want to use the least fuel, then missions to Mars are feasible every two years.
You want to launch when Earth and Mars are close together, and this happens <em>about every 26 months</em>.
However, Earth travels faster than Mars, so the spaceship must launch when Mars is 44° <em>ahead </em>of Earth in its orbit.
The ship will then use the most efficient trajectory to arrive at Mars.
Answer:
It indicates that the ratio of the particles in the composition of the sample will always be 2:1 with Hydrogen: Sulfur
