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Dvinal [7]
3 years ago
15

What is happening when an oxygen molecule is formed from two separate oxygen atoms?

Chemistry
1 answer:
antoniya [11.8K]3 years ago
3 0

Answer:

They form a double bond

Explanation:

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Why is it difficult for hydrogen atoms to stick together
Rasek [7]

Answer:

So, the energy of two hydrogen atoms is lower when the two atoms are together than when the two atoms are apart; that is why they stay together.

Explanation:

6 0
2 years ago
I Need help ASAP!
8090 [49]

Answer:

The correct answers are:

• Softer, porous, or more permeable rocks weather faster than harder rocks.

• Rocks in warmer climates weather faster than rocks in colder climates.

• The more water present, the faster the rate of weathering.

Explanation:

Weathering is the process through which the surface minerals of rock are broken down and loosened. This occurs through the action of extreme temperatures, rainwater and biological activity.

Hope this helps- Good luck ^w

4 0
2 years ago
Read 2 more answers
50 ml of 0. 100 m hcl is titrated with 0. 1500 m naoh. the ph at the equivalence point is:_____.
marysya [2.9K]

The answer is 7.

The equivalence point of a titration is when moles of titrant added becomes equal to the moles of sample analyte.

Calculate the pH at equivalence point for a strong acid and strong base reaction.

  • The given acid is HCl which is a strong acid and the base NaOH is also a strong base.
  • Calculate the moles of acid HCl:

Molarity of HCl= 0.100 M

Volume of HCl = 50 mL = 0.050 L

Moles\ of\ HCl\ = Molarity\ of\ HCl×Volume\ of\ HCl\ in\ L

                      = 0.100\ M×0.050\ L =  0.005\ moles

  • At equivalence point, same moles of base are added and thus it results into complete neutralization. Thus, all the hydrogen ions of acid are neutralized by the hydroxide ions of the base forming only water and neutral salt.
  • Thus, the pH at the equivalence point becomes 7 (neutral solution).

To learn more about pH at equivalence point visit:

brainly.com/question/23942601

7 0
1 year ago
Which statement about covalent compounds is FALSE?
Vladimir79 [104]

Answer: b . Covalent compounds can contain a maximum  of 4 different atoms.

Explanation:

The covalent compounds are those compounds that are formed between the non-metals via sharing of electrons. The bonds so formed between these non-metallic atoms are covalent. There can be two or several different kinds of atoms that can form covalent bonds with each other in a single molecule. They use the valence electrons for sharing. The maximum number of valence electrons can be seven.

5 0
3 years ago
What is the theoretical yield of calcium phosphate?
BARSIC [14]
  <span>I'm going to assume that the other reactant is sodium phosphate(you did not indicate this) 
so i'm guessing that the reaction did this 
CaCL2 + Na3(PO4) ------------> Ca3(PO4)2 + NaCl 
(since this reaction was done in water(aqueous solutions involved) the NaCl would be in the solution and thus the filtrate of the product so it won't influence the mass of the calcium phosphate product) 

so then you need to write the balanced equation for this reaction(lets assume you can do this) 
3 CaCL2 + 2 Na3(PO4) ------------> Ca3(PO4)2 + 6 NaCl 

so in theoretical analysis 3 moles of calcium chloride is involved in the production of 1 mole of calcium phosphate 

in terms of molar mass equivalents 3 molesw of calcium chloride weigh = 3 x (40 + 71)g/mol = 333g 
1 mole of calcium phosphate = 310 g 
so if you only have 0.513 g of calcium chloride then this would calculate to get the mass of calcium phosphate  
mass = [0.513 / 333] x 310 g = 0.477grams  

your actual yield is what you massed when you performed the lab. hope that helped.
</span>
5 0
3 years ago
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