In addition to carbon, hydrogen, and oxygen atoms, all proteins contain nitrogen and sulfur atoms, and many also contain phosphorus atoms and traces of other elements. Proteins serve a variety of roles in living organisms and are often classified by these biological roles.
Sodium Chloride
Chemically, table salt consists of two elements, sodium (Na) and chloride (Cl). Neither element occurs separately and free in nature, but are found bound together as the compound sodium chloride.
Calcium Chloride
Calcium chloride is a member of the salt family of elements and is made up of calcium and chlorine. It is a white, odorless, hygroscopic powder.
Magnesium Hydroxide
It has an empirical formula of MgO and consists of a lattice of Mg2+ ions and O2− ions held together by ionic bonding. Magnesium hydroxide forms in the presence of water (MgO + H2O → Mg(OH)2), but it can be reversed by heating it to remove moisture.
Sand
Silica, also known as silicon dioxide, is a natural occurring material that is also the major constituent of sand, which is estimated to comprise more than 10% by mass of the earth's crust.
Water
Water molecules are made of hydrogen and oxygen atoms, in the definite proportion of two hydrogens for one oxygen.
Answers & Comments
1.carbon, hydrogen, oxygen, nitrogen
2.sodium, chlorine
3.calcium, chlorine
4.magnesium, oxygen, hydrogen
5.silicon,oxygen(2 atoms)
6.hydrogen(2 atoms), oxygen
Answer:
Protein
In addition to carbon, hydrogen, and oxygen atoms, all proteins contain nitrogen and sulfur atoms, and many also contain phosphorus atoms and traces of other elements. Proteins serve a variety of roles in living organisms and are often classified by these biological roles.
Sodium Chloride
Chemically, table salt consists of two elements, sodium (Na) and chloride (Cl). Neither element occurs separately and free in nature, but are found bound together as the compound sodium chloride.
Calcium Chloride
Calcium chloride is a member of the salt family of elements and is made up of calcium and chlorine. It is a white, odorless, hygroscopic powder.
Magnesium Hydroxide
It has an empirical formula of MgO and consists of a lattice of Mg2+ ions and O2− ions held together by ionic bonding. Magnesium hydroxide forms in the presence of water (MgO + H2O → Mg(OH)2), but it can be reversed by heating it to remove moisture.
Sand
Silica, also known as silicon dioxide, is a natural occurring material that is also the major constituent of sand, which is estimated to comprise more than 10% by mass of the earth's crust.
Water
Water molecules are made of hydrogen and oxygen atoms, in the definite proportion of two hydrogens for one oxygen.
Explanation:
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