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What makes up a chemical change?
The chemical change is made by these following:- 1. Temperature 2. pressure 3. Nature of chemical
Is Digesting an apple a physical or chemical change?
1. First step: a physical change 2. Second step: a chemical change
Is mixing milk and cream to a physical or a chemical change?
It would be a chemical change, because if it was a physical change it would stay the same substance, but in a chemical change you mix 2 different substances to get a new substance.
What is meant by the term chemical change Give 2 examples?
A chemical change is a change that imply the change of the nature of molecules. Examples: neutralization of an acidic solution, thermal decomposition and generally all chemical reactions.
2 colorless liquids produce a white precipitate when they are mixed together is it a chemical change or a physical change?
Chemical change. The formation of a precipitate is one indication that a chemical reaction has taken place.
What are Ways to change the rate of a chemical reaction?
1. Increase the temp 2. Increase surface area 3. Increase the pressure of the system
Is formation of water when hydrogen burns a chemical change or a chemical property?
It's a chemical change. Any time you have a change in the chemical formula of a substance, you have a chemical change. The chemical formula of hydrogen is H[2], and the chemical formula of oxygen is O[2]. The chemical formula of water is H[2]O. 2 H[2] + O[2] --> 2 H[2]O. If you were watching this happen in a lab, you'd watch two colorless gases react to form a single colorless liquid. A change in state (solid, liquid, or gas) that cannot be due to heating or cooling is nearly always a sign of a chemical change.
What has to happen for a chemical change to happen?
At least 2 of the reactants must change their chemical formula.
What makes up a chemical change?
The chemical change is made by these following:- 1. Temperature 2. pressure 3. Nature of chemical
How would you determine if a chemical change has occurred?
There are a few ways... 1) the identity of the substance changed 2) there was a gas released (fizzing, bubbles, etc.) 3) color change (even though color change is a physical property, it might be caused by a chemical reaction)
What are 4 ways in which you can manage air and water resources more wisely?
Four ways in which you can manage air and water resources more wisely 1.Prevent and reduce waste and pollution 2.Prevent and reduce potentially harmful chemical exposures to employees and members 3.Reduce risks of accidents and releases 4.Prevent or reduce potential liabilities and regulatory compliance burdens.
Is the burning of gasoline in a car a chemical change or physical change?
Answer The burning of gasoline is a chemical change.
Is Digesting an apple a physical or chemical change?
1. First step: a physical change 2. Second step: a chemical change
What are three indicators of a chemical reaction occurring?
there are mainly two ways that indicate that a chemical change has taken place. These ways are the physical properties (the way things look, without changing the chemical makeup of a substance) are different, and the chemical properties (the way the substance reacts with other substances) are different.
Give four ways you can prevent other student from reading work you have saved on a laptop?
You can lock it 1 you can help them 2 change the password3 take the computer away 4
What are the ways rates of chemical change can be changed?
Rate of chemical change can be altered by 1. Changing the temperature. 2. Changing the pressure (if gases are involved). 3. Changing the particle size of a solid reactant. 4. Changing the concentration of a dissolved reactant. 5. Adding a suitable catalyst.
What is meant by the term chemical change Give 2 examples?
A chemical change is a change that imply the change of the nature of molecules. Examples: neutralization of an acidic solution, thermal decomposition and generally all chemical reactions.
