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scoray [572]
3 years ago
8

4. A student was not sure that she accurately recorded the final temperature of her melting point sample. Therefore, she decided

to rerun the experiment with the same sample. Was this a wise decision
Chemistry
1 answer:
Mumz [18]3 years ago
3 0

Answer:

AWF DSF

Explanation:

W AFSDDDDDDDDD

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Describe in general terms the structure of ionic solids such as nacl
allochka39001 [22]
<span>Ionic compounds are chemical compounds in which ions are held together in a lattice structure by ionic bonds. They have a high melting and boiling point, and they have a high hardness and are very brittle. The cations and anions are stuck together in a sense. So in this case, sodium (Na) is attracted to Chlorine (Cl).</span>
8 0
4 years ago
Which has the greater polarizing power, Li+ or Be2+ and why?
kvasek [131]

Answer:

Polarizing power refers to an atoms ability to pull an electron toward it, polarizing the atom the electron comes from. Since cations are positive, they are able to attract electrons toward themselves. Anions are negative and so do not attract more electrons.

Therefore, Be2+ has a higher polarizing power because it has a higher quantitiy of protons, hence a higher polarizing power.

4 0
3 years ago
Onsider the reaction below.
mamaluj [8]

Answer:

3.14 moles of hydrogen are produced

Explanation:

This is because for every 1 molesof hydrogen are produced 2 moles of oxygen are produced. So we take 6.28 divide it by 2 and we wend up with 3.14.

8 0
2 years ago
Is H2O polar or non polar?
otez555 [7]

Answer:

Explanation:

H2O is a polar molecule

8 0
2 years ago
Read 2 more answers
Atmospheric pressure at the summit of mount everest is about one third the pressure at sea level, which is 760 mm hg. if oxygen
vichka [17]
Atmospheric pressure at sea level is 760 mmHg.
We have been told that at the summit the pressure is only one third the pressure at sea level.
Then the pressure at the mountain top is \frac{760}{3} mmHg
Air is made of a mixture of gases. the pressure that each gas exerts individually contributes to the total pressure of the system. The pressure that each gas exerts is the partial pressure of that gas which depends on the mole fraction of that gas or percentage composition of the individual gas.
Partial pressure of Oxygen - total pressure x percentage composition
Therefore pO₂ - \frac{760 * 0.21}{3} = 53.2 mmHg
Answer is 53 mmHg
6 0
4 years ago
Read 2 more answers
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