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What else can I help you with?
What things can be done to change how fast a chemical reaction occurs?
You can add a catalyst, or raise the temperature, or change the pressure, these are some of the things done to speed up a chemical reaction.
Describe an experiment used to find out whether there is any temperature change on mixing ethanol and water?
Measure equal amounts of water and ethanol in separate containers. Take temperature of both. Add ethanol to water and take temperature.
What is the temperature if you put salt in water?
Adding salt does not effect the temperature.Answer:Adding salt does not change the temperature at the time you add the salt, but it raises the temperature at which the water will boil
What happens to the temperature of boiling water when heat is added to the boiling water?
If you add energy to a boiling liquid, it will just boil faster, but the temperature will remain the same, at the boiling point. All the energy goes into phase change, not heating.
What can cause an increase in the density of water?
The density of water is only 1 g/cm3 at 4 degrees Celsius. Any other temperature, and the density is less than 1. So technically, if it was not 4 degrees, you would change its temperature to increase its density. The only other way to increase the density is to add things to/dissolve things in the water, such as salt, sugar, or anything else soluble in water.
What is needed to change water from a solid to a liquid?
A room temperature ubove 0 degrees centigrade.
If you add salt to water does it make the water hot or cold?
salt doesn't change the temperature of water, it changes the freezing point. salt lowers the freezing point of water so that it will become ice at a lower temperature, therefor melt at a lower temperature which is why salt is put on the roads when it is icy
How do you find rise in temperature of water in a calorimeter?
To find the rise in temperature of water in a calorimeter, you would measure the initial temperature of the water, then add a known quantity of heat to the system (e.g. by burning a fuel), and measure the final temperature. The change in temperature of the water is a measure of the heat released or absorbed by the system.
What do you add or subtracting to change a state of matter?
To change the state of matter, you need to add or remove energy. For example, to change a solid to a liquid, heat is added to increase the temperature until it reaches the melting point. Likewise, to change a liquid to a gas, heat is added to increase the temperature until it reaches the boiling point.
What has to happen for water to change temperature?
the energy from the sun goes to the equator causing a temperature difference at the poles. Blowing cold wind over the water, and the suns energy on the water effects the temperature change in the water.
When you add 100 joules of heat to a glass of water the temperature goes up When you add 100 joules of heat to water with ice cubes in it the temperature stays the same Why?
When 100 joules of heat is added to a glass of water, the energy increases the kinetic energy of the water molecules, raising the temperature. However, when adding the same amount of heat to water containing ice cubes, the energy goes into melting the ice rather than increasing the temperature of the water. This process, called latent heat, absorbs energy without a change in temperature until all the ice has melted. Thus, the temperature remains constant while the phase change occurs.
Why sometimes you cook things in water?
Boiling water remains at a constant temperature, providing even moist heat. In some cases, you want to add water to the food, such as pasta, noodles or dried fruit.
