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Which sentence describes a way that Earth's biodiversity helps human health?
C2H5OH and 3O2
Many medicines are derived from plants and animals and more are being discovered as new species are found.
chemical change
9 grams per cubic centimeter
force of gravity on their masses
salt forming after mixing two liquids
slightly acidic
a magnet and a coil of copper wire
The chemical reaction below describes the combustion of ethanol. C2H5OH + 3O2 → 2CO2 + 3H2O What are the products of the reaction?
C2H5OH and 3O2
Many medicines are derived from plants and animals and more are being discovered as new species are found.
chemical change
9 grams per cubic centimeter
force of gravity on their masses
salt forming after mixing two liquids
slightly acidic
a magnet and a coil of copper wire
Hernando ran an electric current through a beaker of distilled water and separated the water into the gases H2 and O2. What type of change did he produce?
C2H5OH and 3O2
Many medicines are derived from plants and animals and more are being discovered as new species are found.
chemical change
9 grams per cubic centimeter
force of gravity on their masses
salt forming after mixing two liquids
slightly acidic
a magnet and a coil of copper wire
Carrie tests the stream behind her house each year to find out if the water quality has changed. This year, the water in the stream had a pH of 6.0 according to the pH meter. What describes the pH of the water in the stream?
C2H5OH and 3O2
Many medicines are derived from plants and animals and more are being discovered as new species are found.
chemical change
9 grams per cubic centimeter
force of gravity on their masses
salt forming after mixing two liquids
slightly acidic
a magnet and a coil of copper wire
Which of these represents a chemical change?
C2H5OH and 3O2
Many medicines are derived from plants and animals and more are being discovered as new species are found.
chemical change
9 grams per cubic centimeter
force of gravity on their masses
salt forming after mixing two liquids
slightly acidic
a magnet and a coil of copper wire
Which objects could be combined to make a device that would produce electricity?
C2H5OH and 3O2
Many medicines are derived from plants and animals and more are being discovered as new species are found.
chemical change
9 grams per cubic centimeter
force of gravity on their masses
salt forming after mixing two liquids
slightly acidic
a magnet and a coil of copper wire
Charity was measuring a sample of copper to determine its density. The sample had a mass of 27 grams and a volume of 3 cubic centimeters.What is the density of copper?
C2H5OH and 3O2
Many medicines are derived from plants and animals and more are being discovered as new species are found.
chemical change
9 grams per cubic centimeter
force of gravity on their masses
salt forming after mixing two liquids
slightly acidic
a magnet and a coil of copper wire
The planets in our solar system stay in their orbits because of the __________.
C2H5OH and 3O2
Many medicines are derived from plants and animals and more are being discovered as new species are found.
chemical change
9 grams per cubic centimeter
force of gravity on their masses
salt forming after mixing two liquids
slightly acidic
a magnet and a coil of copper wire
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