Chem/Phys
Changes
Changes
Which change is the best example of a physical change?
- a cookie baking
- ice cream melting
- paper burning
- a nail rusting
What is, ice cream melting?
What element has the chemical symbol Cl?
What state of matter in nature does Cl take?
What is Gaseous?
What is anything that has mass and takes up space
what is matter?
What is when an object displaces an amount of water (or liquid) by a amount equal to the volume of the object itself?
How many total atoms are present in the chemical formula 5(C4Cl)
what are 25 total atoms ?
A change in which two or more new substances are formed?
what is a chemical change?
What element has the chemical symbol NA?
What is no element has the symbol NA?
A group of two or more different atoms chemically bonded together?
What is a compound?
What makes something a "Law" of nature?
What is consistent and repeatable results done by different scientist over a course of significant time.
How many total atoms are presentsin 3NaS2C4?
What are 21 atoms?
Is water boiling a chemical change or a physical change?
What is a physical change?
Name three physical properties you us could describe any element ?
What is:
1. Density?
2. Color?
3. Melting Point?
4. State of Matter?
5. Boiling Point?
6. Luster?
The basic units from which all things are made.
What are atoms?
What type of change is ice cream melting?
What is a physical change?
CH4 + 2O2 --> CO2 + 2H2O
What is 1?
Name two chemical properties
What is flammability and reactivity?
What element is highly desired for wedding rings as well as tip your pencil?
What is Carbon?
what are substances made of only one type of atom?
what are elements?
According to the Law of Conservation of Mass, if I have reactants starting out with a total of 6g, what will be the mass of the products?
What is 6 grams?
How many total atoms are in the compound C2H8O?
What are 11 total atoms?
Provide a real life example of a chemical change
what is? (answers vary)
Iron (Fe) reacts with what element to form rust?
What is oxygen?
What is the definition of a chemical reaction?
What is an interaction when the atoms and molecules of two or more substances rearrange to form new substances.
State the Law of Conservation of Matter
What is matter cannot be created or destroyed, it can only change form.
How many TOTAL atoms are in this compound?
H2C3O4N5
What are 14 total atoms ?