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What happens if the particle of two substances have the same average kinetic energy?
the specific heats of the substances are identical the particels will not react chemically the substances have equal theraml energies the substances have equal temps hop it helped sorry if it didnt
What is the total of original and new substances that are the same after a chemical change?
It would be called a physical change, and would not be a chemical change at all. In order for a chemical change to occur, the original substances (reactants) must have different physical and chemical properties than the new substances (products).
What is a change in matter in which new or different kinds of matter are formed?
When one or more new substances is created, the change is called a chemical change. A chemical change has occurred if there is a new substance created, there was energy released or absorbed, or the substances no longer exhibit the same chemical properties.
How will you justify that ice water and steam are not different substances but different states of the same substance?
Could be in the substances themselves. i.e. they are all subject to the same processes but at different temperatures. Thus rock, at normal temperatures, is the equal of being frozen, and rock can be heated to a point where it becomes a gas. Although it is usually a compound, so the gaseous the state of its constituent compounds would be reached at different times. Of existing gases, they can certainly be frozen to a liquid state, I have never heard of one of these becoming a solid, although I believe that some asteral bodies have frozen gases laying on the ground as a sort of frost
Is mixing milk and cream to a physical or a chemical change?
It would be a chemical change, because if it was a physical change it would stay the same substance, but in a chemical change you mix 2 different substances to get a new substance.
Are all substances the same before and after burning?
No, some substances change their whole form and others just change their color and shape.
Do all substances catch fire on same temperature. Give reasons?
All substances does not Catch fire at the same temperature. More volatile substances -like solvents - Catch fire at a lot lower temperatures than more stable substance.
What happens if the particle of two substances have the same average kinetic energy?
the specific heats of the substances are identical the particels will not react chemically the substances have equal theraml energies the substances have equal temps hop it helped sorry if it didnt
How do the properties of substances change when they are mixed together?
I have the same question lol.......
A difference in this results in different ending temperatures when the same amount of thermal energy is added to two different substances?
specific heat
Does a change in substances and properties go with physical change?
no, if it's a substance change then it's a chemical change. If it were a physical change then it would be the same substance
When two substances in thermal contact starting at different temperatures reach the same temperature their condition of thermal balance is called thermal?
Thermal equilibrium?
What is the law stating that the mass off all substances involved in a chemical change will be the same after the change?
This is the law of mass conservation.
What is the total of original and new substances that are the same after a chemical change?
It would be called a physical change, and would not be a chemical change at all. In order for a chemical change to occur, the original substances (reactants) must have different physical and chemical properties than the new substances (products).
Why same amount of heat supplied to same amount of different substances does not produce the same increase in temperature?
There is a formula in physics ΔQ=m*c*ΔT, where m is the mass of the substance you are heating, ΔQ is the heat you supply to the substance, c is the specific heat which has a different value for different substances and ΔT is the change in temperature. If your substances are different and they have the same mass then by supplying the same amount of heat the change in temperature will be different.
Do all states have the same rules about acceptable car window tints?
For most states the requirments are similar if not the same for window tint. Some states such as Nevada do have different laws due to the heat and high temperatures there.
When substances go through a chemical change what happens to the mass'?
The total mass of products is unchanged from the total mass of the reactants, but the masses of particular substances among the reactants or products change.
