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What else can I help you with?
What is the smallest piece of matter discovered?
Atoms
tearing a piece of paper in half physical or chemical change?
Physical change
How the arrangement of the atoms and molecules in a sugar crystal differ from those in a piece of plastic?
the atoms dissolve with the atoms and the molecules to lock the sugar and salt / lock in to make the crystals
When a piece of metal cools it will do what?
When a piece of metal cools, it will contract or shrink in size. This happens because the atoms in the metal lose kinetic energy and move closer together, leading to a decrease in volume. Cooling can also change the metal's properties, such as making it harder or more brittle.
Is corrosion of a piece of metal chemical or physical change?
chemical change
How many years would it take half of the rubidium-87 atoms in piece of rock to change into strontium-87?
The half-life of rubidium-87 is approximately 48.8 billion years. This means it would take about 48.8 billion years for half of the rubidium-87 atoms in a rock sample to decay into strontium-87. Therefore, to see half of the rubidium-87 atoms change into strontium-87, you would need to wait this extensive period.
Why is magnitizing a piece of steel a physical change?
Cause you're changing the direction of the atoms when you magnetize it.
What would happen if a piece of rubidium were dropped in water?
As rubidium is a group one element, it has only the 5s1 electron in its outer energy level which makes it very reactive. So, if we were to drop some rubidium in water it would react rapidly to produce smoke and small sparks. There are lots of YouTube videos of this reaction so take a look.
Are the atoms in a piece of iron different from the atoms in a piece of tin?
Yes. Their atomic mass is different, among other things.
How many dozens of silver atoms are in a piece of jewelry?
The number of silver atoms in a piece of jewelry would depend on the size and weight of the jewelry. A typical piece of silver jewelry may contain millions to billions of silver atoms.
What is the smallest piece of matter discovered?
Atoms
What happens during physical changes?
The transformation of a liquid to a gas.
Is folding a piece of paper a chemical change?
no it is not a physical change because folding a piece of paper does not chemicaly change it.
tearing a piece of paper in half physical or chemical change?
Physical change
How the arrangement of the atoms and molecules in a sugar crystal differ from those in a piece of plastic?
the atoms dissolve with the atoms and the molecules to lock the sugar and salt / lock in to make the crystals
Difference between a physical change and a chemical change?
A chemical change is the change of one or more substances into other substances. A physical change is when the state or shape of matter is changed. In a chemical change molecules are combined or beak apart to form new substances.Rusting iron is an example of a chemical change. crushing a can or tearing paper can be an example of physical change.
When a piece of metal cools it will do what?
When a piece of metal cools, it will contract or shrink in size. This happens because the atoms in the metal lose kinetic energy and move closer together, leading to a decrease in volume. Cooling can also change the metal's properties, such as making it harder or more brittle.
