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Gnom [1K]
3 years ago
5

Is the following item durable or nondurable? hamburger

Chemistry
1 answer:
joja [24]3 years ago
3 0
This item is nondurable.
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A spoon of salt is added to water. Which of these will increase how fast the salt dissolves? Check all of
iren [92.7K]

Answer:

B

Explanation:

A is wrong because heat is what makes the process faster.

B is right because the finer grains are able to dissolve at a higher rate since the amount of one grain reduces it's time to dissolve.

C is wrong because simply adding more water will not increase or decrease the dissolving rate.

4 0
3 years ago
The standard free energy change in physiological conditions (G') for the reaction catalyzed by malate dehydrogenase in the citri
Papessa [141]

Answer: The actual value of \Delta G is -618 J/mol

Explanation:

Relation of ree energy change and equilibrium constant

\Delta G=\Delta G^0+2.303\times RT\times \log K_{eq}

where,

\Delta G = Free energy change

\Delta G^o = standard free energy change = +29 kJ/mol =

R = universal gas constant

T = temperature = 37^0C=(37+273)K=310K

K_{eq} = equilibrium constant = 1.02\times 10^{-5}

\Delta G=+29000J/mol+2.303\times 8.314J/Kmol\times 310K\times \log (1.02\times 10^{-5})

\Delta G=29000J/mol-29619J/mol=-618J/mol

The actual value of \Delta G is -618 J/mol

7 0
3 years ago
What is the Number of Cations & anions in a Aluminum& chloride
Eddi Din [679]
Potato I don't know the awnser
4 0
2 years ago
Na2S2O3 (aq) + 2HNO3 (aq) →
Bezzdna [24]

<u>Answer:</u> The correct answer is Option a.

<u>Explanation:</u>

The reaction between sodium thiosulfate and nitric acid produces a number of products. The balanced chemical equation for the reaction of two follows:

Na_2S_2O_3(aq.)+2HNO_3(aq.)\rightarrow 2NaNO_3(aq.)+H_2O(l)+SO_2(g)+S(s)

By Stoichiometry of the reaction:

1 mole of sodium thiosulfate reacts with 2 moles of nitric acid to produce 2 moles of sodium nitrate, 1 mole of water, 1 moles of sulfur dioxide and 1 mole of solid sulfur.

Hence, the correct answer is Option a.

3 0
2 years ago
What is lever (Question answer)
aliina [53]
A lever is a machine made of fulcrum and rigid beam. Force is added to either side of them beam.
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3 years ago
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