The rate of a chemical reaction increases as the temperature of reacting materials increases. baking Powder gives off carbon dioxide gas then it is mixed with water.
A spoonful of dry baking powder is added to a glass of cold water. An identical Quantity is added to a glass of hot water. Which of the following results would occur??
A Bubbles would form first in the hot water.
B bubbles would from first in the cold water.
C No differences would be observed between the reactions inside the glasses.
D N bubbles would be formed in the cold water.
E No bubbles would be formed in the hot water.
You told us the answer in the first sentence.
A !
I don't think the answers have anything to do with the statement. The statement, for the most part, is correct that the rate of a reaction increases with temperature. However, that assumes a reaction takes place and I don't believe there is a reaction between baking soda and water, either hot or cold. The decomposition of NaHCO3 occurs but not at temperatures below100 C. Answers C, D, E are correct. If you're talking about solubility, and there is no hint about that, the hot water will dissolve the powder much faster. The point of my response is that if no reaction occurs there is no rate to consider.
The correct answer is:
A) Bubbles would form first in the hot water.
Explanation:
The rate of a chemical reaction increases as the temperature of the reacting materials increases. In this case, baking powder reacts with water to produce carbon dioxide gas. When baking powder is added to hot water, the increased temperature provides more energy to the reacting particles, which leads to faster and more energetic collisions. This results in a faster production of carbon dioxide gas, leading to the formation of bubbles in the hot water before the cold water. Therefore, bubbles would form first in the hot water.
The correct answer is A) Bubbles would form first in the hot water.
This is because the rate of a chemical reaction generally increases with an increase in temperature. Baking powder contains a chemical called sodium bicarbonate (NaHCO3), which reacts with water (H2O) to produce carbon dioxide gas (CO2).
When baking powder is added to hot water, the heat causes the water molecules to move faster, which increases the collision frequency and energy between the sodium bicarbonate particles and water molecules. This results in a faster reaction, leading to the more rapid formation of bubbles in the hot water.
On the other hand, when baking powder is added to cold water, the lower temperature reduces the kinetic energy of the water molecules, resulting in slower particle collisions and a slower reaction rate. Therefore, bubbles would form first in the hot water.
To arrive at this answer, you needed to understand two important concepts: that the rate of a chemical reaction generally increases with an increase in temperature, and that baking powder reacts with water to produce carbon dioxide gas.