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Why does the base for the atomic mass unit change from hydrogen to carbon?
hydrogen has more binding energy than carbon
What is the role of Copper oxide in the reaction in test for carbon and hydrogen?
Copper oxide acts as an oxidizing agent in the test for carbon and hydrogen. It can react with the carbon and hydrogen in the organic compound to form carbon dioxide and water, respectively. By observing the change in color of the copper oxide, we can determine the presence of carbon and hydrogen in the compound.
Is it a chemical change physical change chemical property or physical property when hydrogen chloride is a gas at room temperature.?
The observation that hydrogen chloride is a gas at room temperature is a PHYSICAL property.
Chemical change of candle?
It constituen carbon and hydrogen converted into CO2 and H2O. It is the chemical change of candle
Is there any change in resistance of carbon composition resistor due to change in temperature?
yes, calculate it from temperature coefficient of resistance.
Types of changes the hydrogen undergoes in a physical change?
Hydrogen gas become a liquid at very low temperature; and after we can obtain solid hydrogen.
Does water temperature change when you add things to it?
NO!
Is a sugar a chemical change?
Sugar is a chemical compound or rather a group of compounds containing carbon oxygen and hydrogen, not a chemical change.
Why do things change temperature?
Things change temperature because of the transfer of heat energy. Heat energy can be transferred from one object to another through conduction, convection, or radiation, causing the object's temperature to increase or decrease.
What are 3 things that would have to be changed to be aphysical change?
temperature, force
When you descend through the earth what two things change?
Temperature and Pressure.
When Hydrogen sulfide is boiling is it a chemical or physical change?
Boiling hydrogen sulfide is a physical change, as it is a reversible process where the substance changes from a liquid to a gas due to the absorption of thermal energy. The chemical composition of hydrogen sulfide remains the same during boiling.
