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When substances are different from the starting substances what occured?
This is a chemical reaction.
What happens in a can of spoiled food as gas is produced?
A chemical reaction of food decomposition occured.
Why does a change in teperature indicate that a change reaction may have occured?
Chemical reactions that involve bond-breaking tend to absorb energy from the surroundings, making the surroundings cooler. Chemical reactions that involve making bonds release energy, which makes the surroundings hotter. An example of a temperature change in a chemical reaction is when a burning fire produces heat.
What heat gas production and color change can all be evidence of chemical change.?
- A gas is evolved from reactants only if a chemical reaction occured.- The same situation for the color change.These are very possible signs but they are not absolute; many other factors must be studied.
How do you explain that a chemical reaction occured?
A chemical reaction occurs when reactants undergo a transformation to form new substances, which is evidenced by observable changes such as color change, gas production, temperature change, or the formation of a precipitate. The breaking and forming of chemical bonds between atoms result in this transformation. Additionally, energy is often absorbed or released during the process, indicating a change in the system. These signs collectively confirm that a chemical reaction has taken place.
Which observation does not indicate that a chemical reaction has occured?
A change in state, such as boiling or melting, does not always indicate a chemical reaction has occurred. It could be a physical change.
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.
When substances are different from the starting substances what occured?
This is a chemical reaction.
What happens in a can of spoiled food as gas is produced?
A chemical reaction of food decomposition occured.
Why does a change in teperature indicate that a change reaction may have occured?
Chemical reactions that involve bond-breaking tend to absorb energy from the surroundings, making the surroundings cooler. Chemical reactions that involve making bonds release energy, which makes the surroundings hotter. An example of a temperature change in a chemical reaction is when a burning fire produces heat.
What type of reaction has occured when two or more substances combine to form another substance?
This is called synthesis, a combination chemical reaction that changes the chemical bonds in the substances.
What heat gas production and color change can all be evidence of chemical change.?
- A gas is evolved from reactants only if a chemical reaction occured.- The same situation for the color change.These are very possible signs but they are not absolute; many other factors must be studied.
Heat gas production and color change can all be evidence of chemical change.?
- A gas is evolved from reactants only if a chemical reaction occured.- The same situation for the color change.These are very possible signs but they are not absolute; many other factors must be studied.
How do you explain that a chemical reaction occured?
A chemical reaction occurs when reactants undergo a transformation to form new substances, which is evidenced by observable changes such as color change, gas production, temperature change, or the formation of a precipitate. The breaking and forming of chemical bonds between atoms result in this transformation. Additionally, energy is often absorbed or released during the process, indicating a change in the system. These signs collectively confirm that a chemical reaction has taken place.
How can someone tell when equillibrium in a reaction has occured?
Equillibrium in a reaction has occured when the concentration of compounds remain unchanged.
How does the chemical equation show that a chemical reaction has occured?
A chemical equation shows that a chemical reaction has occurred by representing the reactants transforming into products through chemical bonds breaking and forming. The equation includes the chemical formulas of the reactants before the reaction arrow and the products after, indicating a rearrangement of atoms and a change in chemical structure. Balancing the equation ensures that mass is conserved, further confirming a chemical change has taken place.
Jorge added a solid material to a clear colorless liquidthe mixture began to bubblee xplain why jorge thought a chemical reaction occurreed?
if a person added a solid material to a colorless liquid and the mixture started to bubble if the person wrote in his notebook a chemical reaction occured explain why that person thought it was a chemical reaction?
