Answer:
All animals, all fungi, and some kinds of bacteria are heterotrophs and consumers
Explanation:
the least dense planet in the solar system
B.
the largest, most massive planet
C.
rotates on an axis tilted entirely sideways
D.
the most distant planet from the sun
Answer:
3min=180s so 180:30=6
=6
a mixture of two common substances that can be separated by chemical means
a mixture of two common elements that can be separated by physical means
a pure substance that can be separated into different elements by chemical means
The second option is the answer. This is a mixture of two common substances that can be separated by chemical means.
NaCL is a compound that was formed through a chemical reaction between sodium and chlorine. In that reaction sodium which is a toxic metal combines with chlorine, a poisonous gas, to form a harmless but totally new compound NaCl or table salt.
Since the sodium ions have a positive charge and the chlorine ions have a negative charge, they are attracted to each other to form an ionic bond.
Sodium can only be separated from Chloride by chemical means e.g. electrolysis.
Answer: Option (d) is the correct answer.
Explanation:
A compound is defined as a substance which contains two different atoms that chemically combine together in a fixed ratio by mass.
A compound can be broken down into its constituent particles.
Pure substances are defined as the species which contains same type of atoms.
For example, NaCl is a pure compound and it can be separated into sodium and chlorine elements.
Thus, we can conclude that the statement a pure substance that can be separated into different elements by chemical means, best describes a compound such as sodium chloride.