Is copper a molecule or an element?

Is copper a molecule or an element?
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copper is definite element
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Is copper a molecule or an element?

Description : Is copper a molecule or an element?

Last Answer : copper is definite element

What is the difference between an element and a molecule?

Description : What is the difference between an element and a molecule?

Last Answer : Answer: An element is a substance made up of only one type of atom, while a molecule is a combination of two or more atoms that are chemically bonded together. For example, oxygen is an element made up of only oxygen atoms, while water is a molecule made up of two hydrogen atoms and one oxygen atom.

Which element is found in a molecule of chlorophyll?

Description : Which element is found in a molecule of chlorophyll?

Last Answer : Magnesium

The smallest particle of an element is called - (1) Ion (2) Electron (3) Atom (4) Molecule

Description : The smallest particle of an element is called - (1) Ion (2) Electron (3) Atom (4) Molecule

Last Answer : (3) Atom Explanation: An element is a substance completely made up of one atom. However, the atom itself is not the smallest known particle, but instead each atom is made up of three individual parts: electrons, protons and neutrons.

An atom is-------? A. smallest indivisible particle in an element B. smallest particle of an element which can undergo a chemical reaction (Answer) C. building block of an element D. always smaller than molecule

Description : An atom is-------? A. smallest indivisible particle in an element B. smallest particle of an element which can undergo a chemical reaction (Answer) C. building block of an element D. always smaller than molecule

Last Answer : B. smallest particle of an element which can undergo a chemical reaction (Answer)

The covalent bonding of atoms forms a/an a. Molecule. b. Ion. c. Element. d. Isomer.

Description : The covalent bonding of atoms forms a/an a. Molecule. b. Ion. c. Element. d. Isomer.

Last Answer : a. Molecule.

Which of the following statements best describes a lead compound? a) A compound that contains the element lead b) A compound from the research laboratory that is chosen to go forward for preclinical and clinical trials. c) A molecule that shows some activity or property of interest and serves as the starting point for the development of a drug. d) The first compound of a structural class of compounds to reach the market.

Description : Which of the following statements best describes a lead compound? a) A compound that contains the element lead b) A compound from the research laboratory that is chosen to go forward for preclinical and ... of a drug. d) The first compound of a structural class of compounds to reach the market.

Last Answer : c) A molecule that shows some activity or property of interest and serves as the starting point for the development of a drug.

Which of the following common element(s) is/are present in the anode mud in elctrolytic refining of copper ?

Description : Which of the following common element(s) is/are present in the anode mud in elctrolytic refining of copper ?

Last Answer : Which of the following common element(s) is/are present in the anode mud in elctrolytic refining of ... A. Selenium B. Tellurium C. Silver D. Gold

The trace element catalyzing hemoglobin synthesis is (A) Manganese (B) Magnesium (C) Copper (D) Selenium

Description : The trace element catalyzing hemoglobin synthesis is (A) Manganese (B) Magnesium (C) Copper (D) Selenium

Last Answer : Answer : C

A trace element deficient in the milk is (A) Magnesium (B) Copper (C) Zinc (D) Chloride

Description : A trace element deficient in the milk is (A) Magnesium (B) Copper (C) Zinc (D) Chloride

Last Answer : Answer : A

The heating element in an electric iron is made of (a) Nichrome (b) Tungsten (c) Copper (d) Iron

Description : The heating element in an electric iron is made of (a) Nichrome (b) Tungsten (c) Copper (d) Iron

Last Answer : Ans:(a)

The element used in an electric filament is (a) Copper (b) Aluminium (c) Iron (d) Tungsten

Description : The element used in an electric filament is (a) Copper (b) Aluminium (c) Iron (d) Tungsten

Last Answer : Ans:(d)

Which of the following is the hardest element? (a) Copper (b) Diamond (c) Iron (d) Silicon

Description : Which of the following is the hardest element? (a) Copper (b) Diamond (c) Iron (d) Silicon

Last Answer : Ans:(b)

An electric iron has a heating element made of – (1) Copper (2) Tungsten (3) Nichrome (4) Zinc

Description : An electric iron has a heating element made of – (1) Copper (2) Tungsten (3) Nichrome (4) Zinc

Last Answer : (3) Nichrome Explanation: Nichrome is used in electric iron because it has high resistance and it is stable in air when hot. Nichrome wire forms a protective layer of chromium oxide. Chemically it is quite stable and does not combine with other atmospheric gases even in high temperature.

The element of Electric stove is made of (1) Copper (2) Invar (3) Magnalium (4) Nicrome

Description : The element of Electric stove is made of (1) Copper (2) Invar (3) Magnalium (4) Nicrome

Last Answer : (4) Nicrome Explanation: Most heating elements use nichrome 80/20 (80% nickel, 20%chromium) wire, ribbon, or strip. Nichrome 80/20 is an ideal material, because it has relatively high resistance.

Necessary element of change in solar energy to electric energy – (1) Berilliurn (2) Silicon (3) Tantelum (4) Pure Copper

Description : Necessary element of change in solar energy to electric energy – (1) Berilliurn (2) Silicon (3) Tantelum (4) Pure Copper

Last Answer : (2) Silicon Explanation: A small solar electric or photovoltaic (PV) converts solar energy into electrical energy. Solar cells consist of semiconductor materials which work on photoelectric effect. Silicon remains the most popular material for solar cells.

Since fuse elements are made of zinc or any alloy of tin and lead, the melting point of the fuse element must be _____________. A. higher than that of copper B. lower than that of copper C. equal to that of copper D. reached when the conductor it is protecting becomes 'white hot.'

Description : Since fuse elements are made of zinc or any alloy of tin and lead, the melting point of the fuse element must be _____________. A. higher than that of copper B. lower than that of copper C. equal to that of copper D. reached when the conductor it is protecting becomes 'white hot.'

Last Answer : Answer: B

__________ does not contain copper as an alloying element, (A) Nichrome (B) Manganin (C) Perminvar (D) Monel metal

Description : __________ does not contain copper as an alloying element, (A) Nichrome (B) Manganin (C) Perminvar (D) Monel metal

Last Answer : (A) Nichrome

Which element is involved in biosynthesis of IAA ? (A) Nitrogen (B) Boron (C) Zinc (D) Copper

Description : Which element is involved in biosynthesis of IAA ? (A) Nitrogen (B) Boron (C) Zinc (D) Copper

Last Answer : (C) Zinc

Which of the following elements is not essential element of plants but proves to be beneficial for some plants? a) Boron b) Sodium c) Iodine d) Copper

Description : Which of the following elements is not essential element of plants but proves to be beneficial for some plants? a) Boron b) Sodium c) Iodine d) Copper

Last Answer : b) Sodium

Which of the following elements is not essential element of plants but proves to be beneficial for some plants?a) Boron b) Sodium c) Iodine d) Copper

Description : Which of the following elements is not essential element of plants but proves to be beneficial for some plants?a) Boron b) Sodium c) Iodine d) Copper

Last Answer : b) Sodium

An element playing important role in nitrogen fixation is (a) molybdenum (b) copper (c) manganese (d) zinc

Description : An element playing important role in nitrogen fixation is (a) molybdenum (b) copper (c) manganese (d) zinc

Last Answer : (a) Molybdenum

Principal alloying element in Elinvar (used for making hair springs for watches) is (A) Copper (B) Aluminium (C) Nickel (D) Zinc

Description : Principal alloying element in Elinvar (used for making hair springs for watches) is (A) Copper (B) Aluminium (C) Nickel (D) Zinc

Last Answer : Option C

Which of the following elements is found in the earth's crust as both a native element and as a compound? w) argon x) copper y) chlorine z) silicon

Description : Which of the following elements is found in the earth's crust as both a native element and as a compound? w) argon x) copper y) chlorine z) silicon

Last Answer : ANSWER: X -- COPPER

Which of the following is the only element which i "mined" from the sea? Is it: w) copper x) magnesium y) uranium z) zinc

Description : Which of the following is the only element which i "mined" from the sea? Is it: w) copper x) magnesium y) uranium z) zinc

Last Answer : ANSWER: X -- MAGNESIUM 

Cinnabar, pyrite and galena are minerals which consist of one or more metals combined with the same element. Which one of the following is the element that is common to all three of these minerals? Is it: w) iron x) copper y) sulfur z) sodium

Description : Cinnabar, pyrite and galena are minerals which consist of one or more metals combined with the same element. Which one of the following is the element that is common to all three of these minerals? Is it: w) iron x) copper y) sulfur z) sodium

Last Answer : ANSWER: C-- SULFUR

Which of the following is an important element of stainless steel. w) chromium x) magnesium y) copper z) nickel

Description : Which of the following is an important element of stainless steel. w) chromium x) magnesium y) copper z) nickel  

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An electric iron has a heating element made of : (1) Copper (2) Tungsten (3) Nichrome (4) Zinc

Description : An electric iron has a heating element made of : (1) Copper (2) Tungsten (3) Nichrome (4) Zinc

Last Answer : Nichrome

Necessary element of change in solar energy to electric energy (1) Berillium (2) Silicon (3) Tantelum (4) Pure Copper

Description : Necessary element of change in solar energy to electric energy (1) Berillium (2) Silicon (3) Tantelum (4) Pure Copper

Last Answer : Silicon

Select insulating materials for following parts : (i) Insulation between heating element and base plate of electric iron. (ii) Insulation used over copper or aluminium conductor used for making coils. (iii) Transformer bushings. (iv) Insulation between transmission line and pole.

Description : Select insulating materials for following parts : (i) Insulation between heating element and base plate of electric iron. (ii) Insulation used over copper or aluminium conductor used for making coils. (iii) Transformer bushings. (iv) Insulation between transmission line and pole.

Last Answer : Parts Insulating Materials  Insulation between heating element and base plate of electric iron. Mica Insulation used over copper or aluminium conductor used for making coils.  ... Transformer bushings Porcelain  Insulation between transmission line and pole. Porcelain