Chemistry Elements 1-20 & Quiz Questions Quiz

The correct answer is Hydrogen because it is the chemical element that is commonly represented by the symbol 'H'. Helium, Carbon, and Oxygen are other elements with different symbols.

The correct answer is Helium. Helium is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas.

The correct chemical symbol for Lithium is 'Li'. Other options provided are incorrect as they do not correspond to the correct chemical symbol of 'Li'.

The correct answer is Beryllium, which is a chemical element with the symbol Be and atomic number 4. Boron, Barium, and Bismuth are all different elements with their own unique symbols and atomic numbers.

The correct answer is Boron (B), which is a chemical element with atomic number 5 on the periodic table. Beryllium (Be), Barium (Ba), and Bismuth (Bi) are all different chemical elements with their own unique symbols.

The correct answer is Carbon, which is represented by the symbol C on the periodic table. Calcium is represented by Ca, Copper by Cu, and Chlorine by Cl.

The correct chemical symbol for Nitrogen is 'N', as it is the elemental symbol for Nitrogen on the periodic table.

The correct answer is Oxygen, which is represented by the chemical symbol O. Nitrogen, Hydrogen, and Carbon are other elements but are not represented by the letter O.

The correct chemical symbol for Fluorine is 'F', Iron is represented by 'Fe', Francium by 'Fr', and Fermium by 'Fm'.

Neon is a noble gas with atomic number 10 and symbol Ne. It is commonly used in neon signs and as a component in gas discharge lamps.

The chemical symbol for Sodium is Na, derived from its Latin name 'Natrium'. Options So, Sn, and Ni are not the correct symbols for Sodium.

The correct chemical symbol for Magnesium is Mg.

The correct chemical symbol for Aluminum is Al. The other options provided are not the correct symbol for Aluminum.

The correct chemical symbol for Silicon is Si, while SiO2 is the chemical formula for Silicon Dioxide, Se is the chemical symbol for Selenium, and Sn is the chemical symbol for Tin.

The correct chemical symbol for Phosphorus is P.

The correct answer is sulfur, as it is the element represented by the chemical symbol 'S'. Sodium is represented by 'Na', Silicon by 'Si', and Silver by 'Ag'.

The correct answer is Chlorine, represented by the chemical symbol 'Cl' in the periodic table.

The correct chemical symbol for Argon is Ar, not Ac, Ag, or Al. Argon is a noble gas with atomic number 18.

The correct element represented by the letter K on the periodic table is Potassium.

The correct answer is Calcium. The chemical symbol Ca is used to represent the element Calcium on the periodic table. Carbon is represented by the symbol C, Copper by Cu, and Cadmium by Cd.

Specific Gravity is a unitless measure that compares the density of a substance to the density of a reference substance, usually water. It is calculated by dividing the density of the object by the density of water. Therefore, the correct answer is the density of the object divided by the density of water.

Kinetic and Potential are types of mechanical energy, while Solar energy falls under Electromagnetic energy, making them incorrect choices.

The heat of vaporization (H sub f) of ~2200J/g is equivalent to 540 cal/g, making it the correct answer.

The correct formula for calculating heat energy moved is Q= mCp?T, where Q represents heat energy moved, m is the mass, Cp is the specific heat value, and ?T (delta T) is the change in temperature.