Which of the following pieces of evidence help Dalton and Marcy answer questions a new gas was formed a solid dissolved in a liquid. They saw a new color one of the substance formed had a new property.
The evidence that would help Dalton and Marcy answer the questions are the following:
1. Formation of a new gas: If they observed the release of a gas in response to the interaction between the solid and liquid, it would provide evidence that a new gas was formed. This indicates a chemical reaction, as gases are often produced as a result of chemical reactions.
2. Dissolution of a solid in a liquid: If they observed the solid substance disappearing or dissolving completely in the liquid, it would provide evidence that the solid was soluble in the liquid. This indicates a physical change, as dissolution is a physical process.
3. Observation of a new color: If they noticed a change in color during the interaction between the solid and liquid, it would provide evidence that a chemical reaction occurred. Changes in color often indicate the formation of new substances.
4. Identification of a new property: If they observed a new property of one of the substances involved, such as a change in odor, taste, texture, or any other characteristic, it would provide evidence that a chemical reaction had taken place. New properties can signify the formation of new compounds or substances.
Based on the given pieces of evidence, Dalton and Marcy can use the following steps to answer the question:
1. Observation: A new gas was formed.
2. Explanation: This suggests a chemical reaction occurred, as gases are often produced during chemical reactions.
3. Hypothesis: The formation of a gas indicates a reaction between two substances.
4. Observation: A solid dissolved in a liquid.
5. Explanation: Dissolving a solid in a liquid is another common chemical process.
6. Hypothesis: The solid and liquid reacted to form a new substance.
7. Observation: A new color was observed.
8. Explanation: A change in color often indicates a chemical change or reaction.
9. Hypothesis: The formation of a new color suggests a reaction between the substances.
10. Observation: One of the substances formed had a new property.
11. Explanation: The development of a new property further supports the possibility of a chemical reaction.
12. Hypothesis: The new substance formed from the reaction exhibited distinct properties.
By considering these pieces of evidence and following these steps, Dalton and Marcy can conclude that a chemical reaction occurred between the solid and liquid, resulting in the formation of a new gas, color change, and the emergence of a substance with different properties.
To determine if a new gas was formed and a solid dissolved in a liquid, Dalton and Marcy can utilize the following pieces of evidence:
1. Observation of a new color: If they observed a new color during their experiment, it suggests a chemical change has occurred. This change in color could be indicative of the formation of a new gas or a chemical reaction between the solid and the liquid. To confirm this, Dalton and Marcy can examine if any precipitate, gas bubbles, or other visual changes are present.
2. Formation of a substance with a new property: If one of the substances involved in the experiment formed a new property, it implies that a chemical change has taken place. For example, if a solid dissolved in a liquid and the resulting solution has different physical or chemical properties compared to the original solid or liquid, it indicates a chemical reaction occurred.
By observing these pieces of evidence, Dalton and Marcy can deduce that both a new gas was formed and a solid dissolved in a liquid. These observations serve as clues which help them answer the initial questions about their experiment.