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Tomtit [17]
2 years ago
10

A solid is matter that has a fixed volume and a fixed shape. True False Lol plz answer

Chemistry
1 answer:
kozerog [31]2 years ago
5 0

Answer:

True

Explanation:

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Find the ΔG° for the combustion of half a mole of glucose C6H12O6 in kJ
xxTIMURxx [149]

Answer:

-1435 kJ

Explanation:

The Gibbs free energy, ΔG is an indication the amount of (useful) work that can be obtained from a chemical reaction involving reacting species and it is negative for spontaneous reaction

ΔG° = ΔH° - TΔS

ΔG = ΔG° + RT㏑Q

ΔG = G (reactants) - G(products)

Given that the combustion reaction of glucose is as follows;

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O

The above reaction has a ΔG° value of -2870 kJ

Therefore, the free energy for half mole of glucose = -2870 kJ/2 = -1435 kJ

8 0
3 years ago
What is the source of most of the salt in the oceans?
andrew11 [14]
Rivers and streams though that’s not the wording I would use
4 0
2 years ago
Two monoprotic acid solutions (A and B) are titrated with identical NaOH solutions. The volume to reach the equivalence point fo
nasty-shy [4]

Answer:

i think it will be c. The acid in solution A is less concentrated than in solution B and is also a stronger acid than that in solution B. im not for sure

Explanation:

4 0
3 years ago
Somebody help with A B and C please will give brain thanks
Norma-Jean [14]

Answer:

we cant see a b or c

Explanation:

7 0
2 years ago
What is the mass of a sample of pure gold containing 3.00 x 1024 gold atoms?
miss Akunina [59]

Answer: The mass is 980.6g of Gold.

Explanation:

We begin by looking for the number of moles equivalent to 3.0 x 10^24 gold atoms.

Using the Avogadro's number,

6.02 x 10^23 atoms of gold make up 1 mole of gold.

3.0 x 10^24 atoms would make up: 1 / 6.02 x 10^23 x 3.0 x 10^24 = 4.98moles.

Now that we know the number of moles, we can then look for the mass using the formular:

Moles = mass/ molar mass

4.98 = mass / 196.9 (atomic mass of gold)

Making "mass" the subject of formula : mass = 4.98 x 196.9= 980.6g

8 0
3 years ago
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