Answer:
Option D - It tells which compounds will dissolve in water.
Explanation:
It is used to predict whether or not a given ionic compound is soluble.
Answer:
Sugar
Explanation:
Mixtures are substances that made of two or more elements or other substances that are joined together by physical methods and when mixed can be also be separated by physical method into the original individual elements.
Air is a mixture of gases such as oxygen, nitrogen, carbon dioxide and rare gases. When an amount of air is collected, its constituents can be collected separately.
Likewise 7 up and sea water
Sugar is a compound made of carbon, hydrogen and oxygen, when sugar is decomposed, it's original constituents are not recovered but sugar is decomposed into carbon dioxide and water
Answer: option <span>C. the total energy inside the calorimeter will decrease.
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Justification:
The answer is a direct application of the first law of thermodynamic (the law of conservation of energy).
By telling that the t<span>he calorimeter is sealed so that there is no heat exchanged between the contents of the container and the surrounding air, the first law of thermodynamics implies that the total energy inside the calorimeter will not change.
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<span>That statement, without adding any more is enough justification.
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Regarding, the other statements, you can show they are true:
<span>A.
the thermometer will show an increase in temperature.
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</span><span>Since the reaction is exothermic, the heat released will increase the temperature inside the sealed calorimeter,which, of course, is shown by the termometer.
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</span><span>B. The potential
energy of the products will be lower than that of the reactants.
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</span><span>In any exothermic reaction, the potential energy of the products is lower than that of the reactants, because the heat released is lost by the reactants when they react and transform into the products.
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</span><span>D. The water
increases in temperature as the reaction gives off heat</span>.
Sure. The heat cannot leave the sealed calorimeter, but the water inside the calorimeter will absorb that heat: the molecules of water will gain kinetic energy and so its temperature will be increase.
Answer:
Explanation:
Chemical compounds are substances that contain two or more elements that are chemically bonded together.
Here are 50 chemical compounds:
- Hydrogen peroxide
- Fructose
- Sulfur hexafluoride
- Glucose
- Sulfuric acid
- Calcium nitrate
- Nitrous oxide
- Calcium sulfate
- Ammonia
- Hydrochloric acid
- Potassium nitrate
- Potassium nitrite
- Sucrose
- Methane
- Carbon dioxide
- Dihydrogen oxide
- Putrescine
- Chloroform
- Ethene
- Hydrazine
- Sodium bicarbonate
- Sodium chloride
- Acetate
- Magnesium sulfate
- Urethane
- Butyne
- Nicotine
- Maltose
- Propene
- Tartaric acid
- Nitrogen dioxide
- Butane
- Butene
- Propane
- Pentane
- Hexane
- Benzene
- Isobutane
- Ovalene
- Coronene
- Pyrene
- Chrysene
- Napthalene
- Acetic acid
- Barium iodide
- Aluminium oxide
- Aluminium fluoride
- Styrene
- Toluene
- Vinyl chloride
