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nadya68 [22]
3 years ago
10

1. If ice is heated at a constant pressure of 0.00512 atm, it will______ . 2. If ice is heated at a constant pressure of 1 atm,

it will_______ . 3. If the pressure of water vapor is increased at a constant temperature of 100 degrees Celsius, it will________ . 4. If the pressure of water vapor is increased at a constant temperature of -50 degrees Celsius, it will________ .
Chemistry
1 answer:
evablogger [386]3 years ago
5 0

Answer:

sublime, melt, condense, deposit

Explanation:

1. When ice is warmed at a steady pressure 0.00512 atm, it will be sublime.  

2. It will be melt when ice is warmed at a consistent pressure of 1 atm.

3. If water vapour pressure is continued to increase at a temperature of 100  C, it will be condense.  

4. If water vapour pressure is continued to increase at a temperature of -50 C, it will be deposited.

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Answer:

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Based on the periodic table why are be, bg, ca and sr in the same column/group/family?
Lesechka [4]

Answer:

The elements are in the same column/group IIA.

See the explanation below, please.

Explanation:

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3 years ago
If the volume of a cylinder is reduced from 8.0 liters to 4.0 liters, the pressure of the gas in the cylinder will change from 7
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Answer:

P₂ = 140 KPa

Explanation:

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What is the best conclusion according to the energy diagram of the chemical reaction?
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"The reaction will absorb energy" is the best conclusion according to the energy diagram of the chemical reaction.

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<u>Explanation:</u>

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The reactant's energy level is less relative to the products as seen in the endothermic reactions' energy diagram, which depicts that  the products are less balanced than reactants. Here when the reaction is forced to the forward direction, then it direct towards the more unbalance entities. As energy is absorbed in the endothermic reaction from surrounding, thus the enthalpy change (ΔH) for the reaction is positive.

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What experimental observations indicate a chemical change is taking place?
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A chemical change is characterized of the formation of new substances or a chemical reaction. There are a number of observations that we can see if this type of change happens. One would be the formation of gas bubbles, this indicates that one of the products is a gas. Another observation would be a formation of a precipitate in the solution, it would indicate that the new solid formed is not soluble in the solution. A permanent color change in the solution would also indicate a chemical change because it may be that the new substance that is formed has its own distinct color when in solution. 
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