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What else can I help you with?
If a piece of metal bubbles was place in acid is that a chemical change?
No, it is not a chemical change. For example, if you put gold bubbles into any single acid, no chemical change will take place.
What identifies a chemical change has taken place?
Signs that a chemical change has taken place include the formation of a gas, the formation of a precipitate, a change in temperature, and a change in color.
What kind of change that takes place when sugar is heated at a short time?
a chemical change take a place
What is rusting mean?
A chemical change has taken place
When boiling take place is the phase change a chemical or physical change?
Boiling is a physical change.
Is bananas turning black if you leave them in a warm cupboard for a week a chemical reaction and why?
Yes, it is a chemical reaction, because the colour of the banana has changed, which shows that a chemical reaction has taken place. Also, if the banana has gone black and turned bad, you can't change it back to it's original form, which proves that it is a chemical reaction and not a physical reaction. Remember - A chemical reaction has definitely taken place if : It's colour has changed A gas is given off There are energy changes Or, it can't be changed back to what it used to be! :) Hope this helps!!
When paper turns yellow brown upon exposure to sunlight what type of change has taken place a chemical or physical change?
A chemical change has taken place. The exposure to sunlight causes the paper to undergo a chemical reaction, breaking down the molecules in the paper and causing the color change to occur.
Can banana's change colors to match other fruits they are place with?
no
If a piece of metal bubbles was place in acid is that a chemical change?
No, it is not a chemical change. For example, if you put gold bubbles into any single acid, no chemical change will take place.
What identifies a chemical change has taken place?
Signs that a chemical change has taken place include the formation of a gas, the formation of a precipitate, a change in temperature, and a change in color.
When cheese is cut into a slices does a chemical formula takes place.?
I assume you mean chemical "change" and the answer is no, it is a physical change that takes place.
What are facts about physical and chemical change?
Chemical changes take place on the molecular level
Is coffee plus cream a physical or chemical change?
A chemical change occurs when a new species is formed, and is generally not reversible. A physical change can usually be reversed as in the case of instant coffee. The coffee goes from a solid to a solution. Evaporation of the water would give the coffee back as a solid.
Copper chloride aluminum foil physical change?
When copper chloride reacts with aluminum foil, a chemical change occurs. This reaction results in the formation of copper metal and aluminum chloride. The color change (from blue to brown/red) and the formation of a solid precipitate are indicators of a chemical reaction taking place.
Is melting ice into water a chemical change?
No. It is a physical change. The chemical formula for water is H2O, and that is also the chemical formula for ice. So there is no chemical change taking place, only a change in the state of matter.
When paper turn yellow brown upon exposure to sun light what type of change is likely taking place?
The paper is likely undergoing a chemical change called photodegradation, where the molecules in the paper are breaking down due to the energy from sunlight. This can cause the paper to change color and become brittle over time.
When a green banana turns yellow a sit ripens. What kind of change is taking place?
What causes a banana's peel to turn brown or black and what causes the fruit to ripen are two different things. A banana's peel turns brown due to an enzyme (polyphenyl oxidase), which is naturally found in the banana. The enzyme polymerises phenols in the banana skin into polyphenols. Polyphenols are similar to melanin, the pigment responsible for the color in our skin. This is what blackens the skin of the bananas.The enzyme that makes bananas sweet is called amylase. Amylase breaks down the starch in the banana fruit. When the starch is broken into its smaller sugar components, called glucose, the banana tastes sweet. The enzyme that softens the banana is called pectinase. Pectinase breaks down the cell walls in the banana fruit so that it is less firm.
