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lakkis [162]
2 years ago
12

Scientists at a food manufacturing company compare the properties of substances for use in flavoring frozen yogurt. They prepare

this list of questions to test the substances. I. Which substances are solids at room temperature? II. Which substances have the most pleasing taste? III. Which substances most quickly dissolve in water? IV. Which substances would best flavor the frozen yogurt? Which of the following questions can be answered through science? (2 points) Questions II and III only Questions II and IV only Questions I and III only Questions I and II only
Chemistry
1 answer:
Ludmilka [50]2 years ago
7 0
I pick but I'm not sure about it though 1and3
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How to revise in just 1 whole day for chemistry combined science is it possible to get a good grade
Pavlova-9 [17]

it will be hard, but you can do it. Just study given the materials for the course. Understand enthalpy and entropy, and various types of bonding and you'll be fine.

4 0
3 years ago
A chemist fills a reaction vessel with mercurous chloride solid, mercury (I) aqueous solution, and chloride aqueous solution at
makvit [3.9K]

Answer:

ΔG° = -533.64 kJ

Explanation:

Let's consider the following reaction.

Hg₂Cl₂(s) ⇄ Hg₂²⁺(aq) + 2 Cl⁻(aq)

The standard Gibbs free energy (ΔG°) can be calculated using the following expression:

ΔG° = ∑np × ΔG°f(products) - ∑nr × ΔG°f(reactants)

where,

ni are the moles of reactants and products

ΔG°f(i) are the standard Gibbs free energies of formation of reactants and products

ΔG° = 1 mol × ΔG°f(Hg₂²⁺) + 2 mol × ΔG°f(Cl⁻) - 1 mol × ΔG°f(Hg₂Cl₂)

ΔG° = 1 mol × 148.85 kJ/mol + 2 mol × (-182.43 kJ/mol) - 1 mol × (-317.63 kJ/mol)

ΔG° = -533.64 kJ

3 0
3 years ago
Select the correct terms to complete the statement:
Likurg_2 [28]

Answer:

The particles that make up a substance in its liquid state have <u>more </u>kinetic energy than those of the same substance in its solid-state.

For a solid to melt, energy must be <u>added to</u> the system.

For a liquid to freeze, energy must be <u>removed from</u> the system.

5 0
2 years ago
1. Which is not an example of matter? (6.P.2.1) *<br> Water<br> Mrs. Saliba<br> Imagination<br> Air
Alchen [17]

Answer:

Imagination

Explanation:

This isnt a real object

Hope this helps

3 0
2 years ago
Define reactivity of metals​
pochemuha
Reactivity metal is when a group of metal elements form recreation using acids, water.
8 0
2 years ago
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