Periodic table
what is the symbol of H ?
Hydrogen
what is the element of O?
oxygen
what matter can keep a define shape and its volume
a solid
Vinegar and baking soda react to produce this gas.
carbon dioxied
In this kind of change, no new substance is formed.
Physical change
This gas helps us breathe.
oxygen
what is the symbol for sodium?
Na
what is the 3 states of matter?
solids, liquids, and gases
This happens when substances combine to form a new substance.
A chemical reaction
Elements increase by this number moving left to right.
atomic numbers
what element has the atomic number of 118
Oganesson
This state of matter has particles moving freely and filling all available space.
gas
Rust forming on iron is an example of this type of reaction with oxygen.
oxidation
what element is number 79?
Gold
what element has the number 27
Cobalt
this change is to liquid to solid
freezing
Burning wood is this kind of chemical reaction.
A combustion
what is the symbol of w
Tungsten
this element is the highest melting point ?
uranium
The change from a solid to a liquid is called this.
mealting
is an egg cooking a chemical reaction,yes or no?
yes an egg cooking is a chemical reaction