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2. Which of the following describes a chemical change?

Which of the following is not a pure substance?

It is a borosilicate glass with a very low coefficient of thermal expansion, hence, it's wide for cooking and serving utensils

The horizontal arrangement of elements of increasing atomic number in a Periodic table is called:

These are compounds containing water molecules loosely bound to the other components

Which of the following is a binary compound?

Which of the following phase changes represent sublimation?

It is considered as derivatives of ammonia in which one or more of the hydrogens have been replaced by the alkyl or aryl group. It is characterized by unpleasant odors

It is a colorless solid capable of being cut into brilliant crystals is the hardest, must abrasive mineral known

A laboratory experiment was performed to determine the percent by mass of water in a hydrate. The accepted value is 36.0% water whose observed value has an error of 5.00%. Find the percent by mass of water

A device used to measure density

What is the mass in kilograms of 10.5 gal (39.7 L) of gasoline with a specific gravity of 0.82

The energy possessed by a substance that allows it to be changed into a new substance

An example of a ternary compound is

Which of the following does not change with change in temperature?

Term used to denote the technology of treating a mined ore to obtain a product higher on concentration of a wanted mineral from the unwanted rock mass in which it occurs.

Whenever you have equal volumes of gases at the same temperature and pressure, the volume must

The element which has a mass of about 9 amu is Berylium (Be), atomic number 4. What is the charge on the Be atom?

The numerical value for standard pressure of any gas is

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