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How can you know this is a chemical reaction?
Evidence of a chemical reaction include the following: formation of a precipitate formation of a gas change in temperature change in color
When acids are added to rocks containing a carbonate bubbles form is this evidence of a physical change or chemical change?
This is evidence of a chemical change. When acids react with carbonate minerals in rocks, they create gas (CO2), which leads to the formation of bubbles. This reaction results in the formation of new substances, indicating a chemical change.
What is the only evidence of a chemical change?
The only evidence of a chemical change is the formation of new substances with different chemical properties than the original substances. This can include changes in color, odor, temperature, or the formation of a precipitate.
Is precipitation a physical change?
Yes, precipitation is a physical change. It involves the process of condensation and solidification of water vapor in the atmosphere, resulting in the formation of rain, snow, sleet, or hail. This change does not alter the chemical composition of the water molecules but rather their state of matter.
Evidence that a chemical change is occurring?
when atoms are combined or taken away and form a different molecule the substance you started with can no longer re-take its original form...example wood to ash from fire or heat, NOT an example is water to steam, that is a physical change and you can condense steam to re-make water.
How can you know this is a chemical reaction?
Evidence of a chemical reaction include the following: formation of a precipitate formation of a gas change in temperature change in color
When acids are added to rocks containing a carbonate bubbles form is this evidence of a physical change or chemical change?
This is evidence of a chemical change. When acids react with carbonate minerals in rocks, they create gas (CO2), which leads to the formation of bubbles. This reaction results in the formation of new substances, indicating a chemical change.
What is the only evidence of a chemical change?
The only evidence of a chemical change is the formation of new substances with different chemical properties than the original substances. This can include changes in color, odor, temperature, or the formation of a precipitate.
What is an example of the formation of a precipitate?
Formation of a precipitate is evidence of a chemical reaction.
What is an observable reaction?
An observable reaction is a change that can be measured, detected, or witnessed during a chemical or physical process. This can include changes in color, temperature, precipitation, gas formation, or the release of light or sound. It provides evidence that a chemical reaction or a physical change has occurred.
What are the six types of evidence for a chemical change?
Types of evidence for chemical change include: A gas is evolved. A precipitate appears or disappears. Heat may be evolved or absorbed. A color change occurs. A substance disappears.
What can be evidence of a chemical reaction?
Evidence of a chemical reaction can include formation of a gas, color change, temperature change, formation of a precipitate, or production of light. These observable changes indicate a transformation of substances into new molecules with different properties.
What is the evidence of chemical change?
Evidence of a chemical change includes the formation of new substances with different properties, such as changes in color, temperature, odor, or formation of a precipitate. Other signs may include the release or absorption of energy, such as light or heat, and irreversibility of the change.
Is precipitation a physical change?
Yes, precipitation is a physical change. It involves the process of condensation and solidification of water vapor in the atmosphere, resulting in the formation of rain, snow, sleet, or hail. This change does not alter the chemical composition of the water molecules but rather their state of matter.
What are the 5 indications of a chemical change?
1. releasing of heat 2. change of color 3. bubbling 4. change of smell 5. precipitation
List 5 pieces of evidence that a chemical change description?
formation of a precipitate formation of a gas color change change in temperature change in odor disappearance of a solid
Evidence that a chemical change is occurring?
when atoms are combined or taken away and form a different molecule the substance you started with can no longer re-take its original form...example wood to ash from fire or heat, NOT an example is water to steam, that is a physical change and you can condense steam to re-make water.
