I believe the answer is B. Density, correct me if i'm wrong :)
<span>Things float in water if their density is less than the density of water so yes
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What is the physical state of oxygen at room temperature?
The psychical state of oxygen at room temperature is gas.
Explanation:
Oxygen has low melting and boiling points, so it is in a gas state at room temperature.
Answer: (C) .There are four molecules of sodium sulfite.
Explanation:
means that there are four molecules of sodium sulfite.
Molecule is defined as a group of atoms bonded together. They are smallest unit of the substance which participates in a chemical reaction.
Atom is defined as smallest unit of matter which composed of electrons , protons and neutrons.
C18H24N2O6 is the chemical formula