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laiz [17]
3 years ago
7

So, I have missed school around three days out of the week. and in science, we are going over the periodic table, I suppose.. an

d I have got a sheet in front of me in which I am supposed to "unscramble" 32 words. I honestly have no idea how to correctly spell each, may someone help?

Chemistry
1 answer:
Sonbull [250]3 years ago
3 0
I am unable to see the attachment pm me and i can help you

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The bond between f and cl would be: pure covalent polar covalent ionic metallic
nexus9112 [7]
I believe the bond between between F and Cl would be polar covalent.
7 0
4 years ago
Read 2 more answers
PLEASE HELP ME I BEG YOU
VladimirAG [237]

The average kinetic energy of 1 mole of a gas at -32 degrees Celsius is:
 
3.80 x 103 J

The relationship between volume and temperature of a gas, when pressure and moles of a gas are held constant, is: V*T = k.

FALSE

The relationship between moles and volume, when pressure and temperature of a gas are held constant, is: V/n = k. We could say then, that:
If the moles of gas are tripled, the volume must also triple.


 If the temperature and volume of a gas are held constant, an increase in pressure would most likely be caused by an increase in the number of moles of gas.

TRUE

If the vapor pressure of a liquid is less than the atmospheric pressure, the liquid will not boil.

TRUE


35 - AB

36 -  BD

33 - true

34 - False

20 - 6

21 - orthohombic


4 0
3 years ago
ASAP!!
saveliy_v [14]

Answer:

just downloud smart

Explanation:

thank me later

8 0
3 years ago
892.970 cm2 to four significant figures
Sophie [7]

Answer:

Explanation:

There is a trick to this. Counting out the 4 places is easy enough.

Start at the 8 and count to your right. You land on the nine, but that is not quite your answer.

The 7 influences the 9 and the nine gets bumped up which makes it a 10. but you just record the zero part. The 1 gets added to the 2.

That in turn influences the 2 which makes it a three. So your answer is

893.0

The trick is that you must include the 0. You are guaranteeing that you know the accuracy of the fourth place. Weird but true.

It helps just slight to convert this to scientific notation.

8.9297 * 10^2  = 8.930 * 10^2

You get the same rounding problem as discussed above, but it might be a little easier to see.

You get the same answer and you have to go through the same steps.

5 0
3 years ago
Balance the equations by inserting coefficients as needed.<br> CaH₂ + H₂O Ca(OH)₂ + H₂
dmitriy555 [2]

The balanced equation is CaH_{2}  + 2 H_{2} O = Ca(OH)_{2}  + 2 H_{2}.

The above equation is a redox reaction. A chemical equation is said to be balanced when the total mass of atoms on the reactant and product side are equal. This means that the number of atoms on both side must also be equal.

We have, CaH_{2}  + H_{2} O = Ca(OH)_{2}  +  H_{2}.

The number of atoms of Calcium (one on both sides) and Hydrogen(four on both sides) are equal. Whereas, there are 2 atoms of Oxygen on the right-hand side and only  1 atom of Oxygen on the left-hand side. So, we can put the coefficient of 2 on the molecule that has Oxygen on the left-hand side to balance them out. i.e.,

CaH_{2}  + 2H_{2} O = Ca(OH)_{2}  +  H_{2}

Now, there are 6 atoms of Hydrogen on the left-hand side but only 4 on the right-hand side. To balance this, we can put the coefficient of 2 on the Hydrogen molecule on the right-hand side.

Thus, we get the final balanced equation as :CaH_{2}  + 2 H_{2} O = Ca(OH)_{2}  + 2 H_{2}

To read about balancing chemical equations visit brainly.com/question/11904811

4 0
2 years ago
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