The radii of the sodium and potassium ions are 102 pm and 138 pm, respectively. Which compound has stronger ionic attractions, sodium chloride or potassium chloride?

Q: An ionic compound forms when lithium (Z = 3) reacts with oxygen (Z = 8). If a sample of the compound…

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: A certain compound is made up of three chlorine atoms, one phosphorus atom, and one oxygen atom.…

A: Given : The compound has  1) 1 oxygen atom i.e 1 O 2) 3 chlorine atoms i.e 3 Cl 3) 1 phosphorous…

Q: The radii of the lithium and magnesium ions are 76 pm and 72 pm, respectively. Which compound has…

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Q: Compounds are "neutral." What does that mean?

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Q: Suppose that mercury forms a perfect spherical droplet with a diameter of 5.0 mm. (a) What is the…

A: Density is given by the ratio of mass of the substance to its volume. 1 mole of a substance contains…

Q: chemical formula

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Q: , Cl, Na, Fe, and K.  Which of these elements  form cations? List their symbols with charges.…

A: Given :- symbols of elements : Ca, Cl, Na, Fe, and K  To write :-  symbols of elements that form…

Q: A 67.2 gg sample of a gold and palladium alloy contains 3.55×1023 atomsatoms . A) What is the mass…

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Q: You take three compounds, each consisting of two elements (X, Y, and/or Z) and decompose them to…

A: The problem belongs to the simplest ratio of masses.

Q: There are two gas compounds that are made out of element  A and B. This is the mass percentage of…

A: Given: Mass percentage: Compound 1: 30.43% A, 69.57% B Compound 2: 63.64% A, 36.36% B

Q: An ionic compound forms when lithium (Z=3) reacts with oxygen (Z=8). If a sample of the compound…

A: A compound is a material formed by chemically bonding two or more chemical elements. The type of…

Q: Define and provide an example for each of the following: atomic element, molecular element, ionic…

A: Atomic element: An  atomic element is defined as an element which exists in nature with one atom as…

Q: (a) Flake white was a white pigment used by Renaissance artists, which was composed of a combination…

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Q: The chemical structure of glycolic acid (HCH,CO, OH) is shown below. Highlight each atom that is in…

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Q: An ionic compound forms when lithium (Z = 3) reacts with oxygen (Z = 8). If a sample of the compound…

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Q: Although carbon-12 is now used as the standard for atomic weights, this has not always been the…

A: The atomic weights of H and O are 1.00794 g and 15.9994 g respectively. Weights of atoms are…

Q: A drop of water has a volume of approximately 0.05 mL. How many water molecules does it contain? The…

A: Density of a substance is equal to the mass of the substance divided by its volume. Write the…

Q: Isopropanol is a liquid at room temperature. It is dangerous to heat volatile liquids over a Bunsen…

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Q: formula units

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Q: A 67.2 gg sample of a gold and palladium alloy contains 2.68×1023 atoms. What is the mass percentage…

A: Mass percent of an element is the ratio of its mass  in the compound to the total mass of the…

Q: A certain compound is made up of one phosphorus (P) atom, three bromine (Br) atoms, and one oxygen…

A: The given compound contains one phosphorus atom, three chloride atoms and one oxygen atom. The…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.