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xz_007 [3.2K]
3 years ago
5

Which are homogeneous mixtures? Check all that apply

Chemistry
1 answer:
n200080 [17]3 years ago
6 0

Answer:

Trail Mix, Orange Juice, Sand

Explanation:

I believe that these are the correct answers because Homogeneous mixtures don't mix and can be taken apart.

Hope this helps!

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Speeds up the reaction but does not change k
notka56 [123]
The answer is catalyst.

A catalyst is characterized by acceleration the rate of a chemical reaction but not modifiy the equilibrium, which is what k represents (the constant of equilibrium of the reaction).

The catalyst manages that the reaction goes through a different pathway, with a lower activation energy, so the transition compound is reached faster and the whole reaction goes faster, but the final species and their equilibriium concentrations do not change.
5 0
3 years ago
If 6 moles of a compound produce 84 J of energy, what is the a<br> Hreaction in J/mol?
Vikki [24]

Answer:

14 J of heat

Explanation:

Recall that the enthalpy of reaction is defined as the enthalpy change that occurs in a system when matter is transformed by a given chemical reaction, if all reactants and products are in their standard states. Here we have the heat of formation of six moles of the substance and we are expected to use it to obtain the the heat of formation of one mole of the compound and we can do that by simple proportion as shown below;

If 6 moles of the compound produces 84J of heat

1 mole of the substance will produce 1×84/6 = 14 J of heat

6 0
4 years ago
Which type of bond creates a crystalline structure?
Vaselesa [24]
Ionic bond is the bond that creates a crystalline structure
7 0
4 years ago
How many grams of Na2SO4 are theoretically produced when excess NaCl reacts with 400 grams of H2SO4
Gnom [1K]

Answer:

335.35 grams

Explanation:

Convert grams of H2SO4 to moles and get 4.08 moles.

Using stoichiometry, the chemical equation tells us that for every mole of H2SO4, one mole of Na2SO4 is produced.  This means that, theoretically, you should get 4.08 moles.

Convert moles to grams and get 335.34 g.

However, if you were to actually perform this reaction, you would get less than the theoretical value.

Hope this helps! <3

3 0
3 years ago
2. Which of the following is not a component of the plasma membrane
spayn [35]
The answer is d because it said so
7 0
4 years ago
Read 2 more answers
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