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4

What is the chemical symbol for gold?

A. Ag

B. Go

C. Au

D. Gd

Correct Answer :

C. Au


Related Questions

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What is the chemical formula for sodium bicarbonate?

A. NaHCO3

B. NaOH

C. Na2CO3

D. Na2SO4

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4

Which of the following is a lanthanide element?

A. Uranium

B. Boron

C. Lanthanum

D. Sodium

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What is the chemical formula for water vapor?

A. H2O

B. CO2

C. H2O2

D. O2

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What is the chemical formula for ammonia?

A. NH4

B. NH2

C. NH3

D. NH

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Which gas is produced during photosynthesis?

A. Oxygen

B. Carbon dioxide

C. Nitrogen

D. Hydrogen

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Which of the following is a noble gas?

A. Neon

B. Sodium

C. Oxygen

D. Chlorine

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What is the chemical formula for nitric acid?

A. HCl

B. H2SO4

C. HNO3

D. H3PO4

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Which element is the most abundant in the universe?

A. Hydrogen

B. Helium

C. Oxygen

D. Carbon

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Which of the following is a nonmetal?

A. Sodium

B. Chlorine

C. Iron

D. Calcium

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The atomic number of an element is determined by the number of:

A. Protons

B. Electrons

C. Neutrons

D. Nucleons

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What is the chemical symbol for potassium?

A. Po

B. Pa

C. K

D. Ke

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Which gas is used in the process of photosynthesis?

A. Carbon dioxide

B. Oxygen

C. Nitrogen

D. Hydrogen

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4

What is the chemical formula for sulfuric acid?

A. HCl

B. H2SO4

C. HNO3

D. H3PO4

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4

Which of the following is a halogen?

A. Sodium

B. Fluorine

C. Potassium

D. Calcium

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What is the atomic number of carbon?

A. 12

B. 14

C. 6

D. 8

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4

What is the chemical symbol for gold?

A. Ag

B. Go

C. Au

D. Gd

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4

What is the chemical formula for carbon monoxide?

A. CO2

B. CH4

C. CO

D. C2O

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Which subatomic particle has a negative charge?

A. Proton

B. Neutron

C. Electron

D. Nucleus

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Which element is essential for human bone health?

A. Calcium

B. Iron

C. Sodium

D. Potassium

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What is the chemical formula for hydrochloric acid?

A. H2SO4

B. HCl

C. HNO3

D. H3PO4

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4

How many electrons are in the outermost energy level (valence shell) of a neutral oxygen atom?

A. 2

B. 6

C. 8

D. 4

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What is the chemical formula for sodium chloride?

A. NaCl

B. Na2Cl

C. NaCl2

D. Na2Cl2

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Which element is the primary component of organic molecules?

A. Nitrogen

B. Oxygen

C. Carbon

D. Hydrogen

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Which of the following is a noble gas used in lighting?

A. Argon

B. Fluorine

C. Chlorine

D. Bromine

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Which of the following is a greenhouse gas produced by human activities?

A. Oxygen

B. Carbon dioxide

C. Nitrogen

D. Argon

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What is the formula for the hydroxide ion?

A. OH2

B. H2O

C. HO

D. OH-

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Which element is essential for all organic compounds?

A. Carbon

B. Oxygen

C. Hydrogen

D. Nitrogen

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Which element is essential for the process of respiration?

A. Carbon

B. Oxygen

C. Hydrogen

D. Nitrogen

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Which gas is responsible for the rotten egg smell?

A. Oxygen

B. Carbon monoxide

C. Sulfur dioxide

D. Hydrogen sulfide

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What is the chemical formula for sulfur hexafluoride?

A. SF6

B. SF5

C. S2F6

D. S2F5