Is cutting grass of physical change or chemical change

What is flame emission spectroscopy

Which statement best describes how the use of gasoline in a car relates to the discipline of chemistry? A.) The materials used come from the ground. B.) The gasoline undergoes a change as it burns. C.) A car uses the gasoline to move. D.

Ionic formula for ethanoate ion

How many miles can you drive, if your car gets 21.3 miles per gallon and you have 12.0 gallons of gas?

Fruit salad is an example of what? Heterogeneous Mixture Homogeneous Mixture Compound Element

What jobs involve chesmistry

Think about a neutral magnesium atom. Then think of a magnesium ion with a 2+charge. How are these two alike? How are they different? Be sure to use the terms proton, neutron, and electron in your answer.

What subatomic particle is specifically responsible for combining the atoms together to form a new substance?

A chemist reported that 100 gallons of a gas were available in a laboratory. Which property of the gas did the chemist report?

Is the water density higher than the aluminum density