1
Nepali of a regular object can be measured by
Submerging the object of water and a gratitude cylinder
What holds autumns together in a molecule
Chemical bonds
If you heat a liquid and measure the temperature at which is boiled you are measuring
Physical property
The dension of air block of wood with a bowling of 50 cubic centimeters and a mass of a hundred grams is
2g\cm3
The change in which ice absorbs energy and melts is an
Endothermic change
In the laboratory volumes of liquid are used measured with a
Graduated cylinder
When is Saint Paul physical change is
burning paper
H2O CO2 and C12H22O are examples of chemical
Formulas
How do lately water ice water vapors differ from each other
They are different states of matter
How would you calculate the density of an object
The light is mass by its volume
To find the mass of a rectangular object you multiply the object's length times with times height true or false
false
Solid a salad and sugar water are all these apples of
Mixtures
Anything that has mass and takes up space is called
Matter
The smallest particles of an element is called atom true or false
True
All elements are made of base particles called
atom
A substance that undergoes a chemical change is still the same substance after the change true or false
flase
The ability to do work or causes change describes
energy
The table salt and water are examples of
Substance
If you describe nothing as a gas that usually catches fire you are describing a
Chemical property
A substance is a single kind of matter that has a specific composition true or false
true
Fireworks exploding in the sky and giving off light are example of
Exothermic change
The measurement of how much mass is contained in a given volume is called
Density
A change produces one or more new substance is called a physical change true or false
False
One example of a chemical change is
burning wood
SI unit for mass is the
Kilogram