0
Add your answer:
Earn +20 pts
How do you determine a chemical change has occurred when two substances are combined?
A chemical change can be determined when two substances are combined by observing if there is a color change, formation of a precipitate, evolution of gas, or change in temperature. Additionally, if the chemical properties of the substances change, such as their reactivity or toxicity, it indicates a chemical reaction has taken place.
Two chemical are mixed together and a gas is produce is it chemical or physical?
The production of a gas when two chemicals are mixed is a chemical change. This is because it involves a reorganization of the atoms in the reactants to form new compounds, resulting in a change in chemical composition.
When two clear liquids are mixed and a yellow color forms is it a chemical change?
Yes, if two clear liquids are mixed and a yellow color forms, it is likely a chemical change. A color change is often an indicator of a chemical reaction taking place, indicating that new substances with different properties are being formed.
A change in color when two solutions are mixed together is a clue that what has taken place?
A change in color when two solutions are mixed together is a clue that a chemical reaction has taken place. This change is often due to the formation of new chemical compounds with different properties than the original solutions.
Is mixing oil and water a chemical change?
Oil floating on water is not a "change", so asking whether it's a physical change or a chemical one is nonsense. To the extent there's any meaning at all to the question, it's a phenomenon caused by the physical properties of the two materials.
What are two effects caused by a chemical change?
Two effects that are caused by a chemical change are changes from one substance into another. Another effect that can be caused by a chemical change is a change in the temperature of the surrounding system and substance, or a change in color of the substance.
Can use chemical in sentence?
Chemical reactions are caused by two reactants
What are two kinds of chemical change?
chemical and physical
Is a change a physical or chemical change?
There are two kinds of changes - physical and chemical. It depends on how the change is made.
Is Molding food a chemical or physical change and why?
its a physical joking its a chemical change a physical is one substances, and a chemical change is two or more substances so the answer is to food molding a chemical change
What An interaction of two or more molecules to create a chemical change?
chemical
How do you determine a chemical change has occurred when two substances are combined?
A chemical change can be determined when two substances are combined by observing if there is a color change, formation of a precipitate, evolution of gas, or change in temperature. Additionally, if the chemical properties of the substances change, such as their reactivity or toxicity, it indicates a chemical reaction has taken place.
Is dipping a oreo cookie in milk a chemical change?
No.
Is dissolving salt in water a example of a chemical change?
No. It is a physical change. All you have to do to separate the two is to evaporate the water. There is no chemical change.
Two chemical are mixed together and a gas is produce is it chemical or physical?
The production of a gas when two chemicals are mixed is a chemical change. This is because it involves a reorganization of the atoms in the reactants to form new compounds, resulting in a change in chemical composition.
When two substances react what change occurs?
when two substances react a chemical change occurs
Is a cut healing a physical or chemical change?
Chemical. The hydrogen peroxide breaks down into water and elemental oxygen. Two new substances are created.
