Figure :0: A E ما - 4 :0: چھ کھائیں B 0: F م م :: • 6 CH 3 :: OH „NH₂

Q: 10. Nitrogen, hydrogen, and ammonia (NH3) are all composed of molecules. What is it about a molecule…

A:

Q: Define element and compound.

A: Given terms,       Elements and compounds.

Q: DIFFERENTIATE COMPOUND, ATOMS, ELEMENTS AND MOLECULES. GIVE EXAMPLES FOR EACH. Write in 10 sentences…

A: Compound, atom, element, molecule all these terms are related to chemistry.  These are all different…

Q: Do theatoms in one molecule change places with atoms in another?

A: Yes, when molecules reacts together with one another then the atoms in one molecule changes places…

Q: How is a molecule different from a compound? How is an atom different from an element?

A: We have to specify the difference between a molecule and a compound, and then an atom and an…

Q: Nitrogen trioxide is a(n) element compound homogeneous mixture heterogeneous mixture

A: Given that, the name is: Nitrogen trioxide

Q: SPECIFIC most signifant object made from

A: In this question we have to explain some examples of specific most signifant object made from metal…

Q: What is the difference between atoms, molecules and compounds?

A: Atoms are the fundamental units of molecules and compounds. It consists of a positively charged…

Q: a

A: This question is related to atomicity of molecules.

Q: Explain this statement in your own words and give an example. The properties of the substances…

A: Every compound is made up of atoms and molecules. The atoms combine in a fixed ratio to give the…

Q: Hydrogen, oxygen, and water are all composed of molecules. What is it about amolecule of water that…

A: Given: Water molecule

Q: Gas is defined as O a. the form of matter that is easily compressible and will fit into a container…

A: There are three states of matter, solid, liquid, and gas. In the solid states, the intramolecular…

Q: b) Alpha iron (a-iron) is BCC crystal structure and has atomic weight of 55.85 g/mol and density of…

A: We know that : d = nM/(a^3*N)  Or, a^3 = (nM/dN) ....(1)  Here, n = 2, M = 55.85 gm/mol, d = 7.87…

Q: How many grams of NaCl would you need to add to 3.0 L of water to make 86mM NaCl?

A: For n = 1 Molar mass of NaCl = 58.44g  Or we can say 58.44g/ mol We are required to calculate the…

Q: Use the information and models to answer the following questiön. A group of students are trying to…

A: Electrical conductive material are those which can transfer charge from one end to other end.

Q: which metals do not make multiple charges?

A:

Q: A mixture that is formed in such a way that each of its components retain their identity and the…

A: The type of mixture has to be identified.

Q: difference between metal and non metal?

A: Here we are asked to write the difference between metal and non metal.

Q: HO, (') HO, (*) Но НО, (*) Named this compounds please

A:

Q: How are elements different from compounds?

A: Elements - A substance which cannot be further broken down into simpler substances are known as…

Q: Does the type of molecule/element matter or the number of particles matter when we are considering…

A: Given:Type of molecule/element matterThe number of particles matter Determine the type of…

Q: List three examples of substances. Explain why each is a substance.

A: List three examples of substances. Explain why each is a substance.

Q: An alloy of copper, silver and gold contains 25-weight percent gold and 15-weight percent silver.…

A:

Q: 1. Write a balanced chemical equation, including physical state symbols, for the decomposition of…

A: We have to calculate the mass HgO required to produce 54 ml of O2 gas when Solid HgO undergo…

Q: hydrochloric acid + magnesium → hydrogen gas + magnesium chloride List two physical / chemical…

A: The question is based on the concept of chemical reactions. we have to write physical and chemical…

Q: Potassium iodide   +    chlorine  =

A: Potassium iodide reacts with chlorine gas to give potassium chloride (soluble) and iodine…

Q: What is meant by the statement, “Matter does what moleculesdo”? Give an example.

A: “Matter does what molecules do” has to be defined.

Q: can a molecular formula represent different structures or molecules?

A: Yes a molecular formula can represent different structures or molecules. And those different…

Q: Which of the following are extensive properties? Choose all that apply. Mass O Density O Volume…

A: In thermodynamics, two types of properties present- 1)Intensive property 2)Extensive property

Q: Which of the following can be more completely broken down? a) Petrochemicals b) Metals c)…

A: Among the given options, Petrochemical = does not break completely. Metals = does not break.…

Q: JJ Thomson is credited with the discovery of

A: J J Thomson, in full Sir Joseph John Thomson, (born December 18, 1856) is English physicist who…

Q: A student is looking at a hexagon that a teacher is swearing is a molecule.  It’s a friggin’ square.…

A: Whatever the compound is, either a hexagon or a square, it is a closed ring. The molecule in which…

Q: How would you convert CaO + H2O into Ca(OH)2

A: How would you convert CaO + H2O into Ca(OH)2

Q: The diagram shows balls of aluminum foil dropped intowater. In one case, the ball floats on the…

A: Case 1 :                  Larger ball of aluminium foil that can be compressed to a smaller one.…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.