Before using any chemical in the lab, why should one first read the material safety data sheet (msds)?

This is absolutely important for our own safety and that of everyone else in the lab  because in the laboratory we work with a lot of materials that are hazardous and must be handled with care.

 The labels on  different containers in the lab provide  basic warning regarding the contents in the specific container  but for  more comprehensive information, we need to look at the Material Safety Data Sheet.

The MSDS has information that covers everything from the nature of a substance whether it is hazardous or not, to personal protective equipment and also special emergency procedures in case of any exposure to the chemical.

Therefore to work as safely as possible, we need to read the MSDS of a substance before working with it.

explanation:

idk

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.