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Interpretation:
The four different molecular formulas were given in the statement and which is one incorrect need to identify.
Concept Introduction:
Atomic radius: The concept explain chemical element is a measured of the size of its atoms, in other words to measure the distance from the center of the nucleus to the boundary of the surrounding cloud of number of electrons.
Increase and decrease electronegativity: The less vacancy electrons an atoms has the least it will gain of electrons. Moreover the
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Chapter 7 Solutions
Chemistry & Chemical Reactivity
- Which of the following chemical formulas are NOT written correctly? (a) F3P (b)NH4+ (c) Fe(NO3)2 (d) H2S (e) All of these are written correctlyarrow_forwardWhich of the following is a molecular compound? (A) PCl5 (B) P4 (C) NH4Cl (D) NaCl (E) All of them arearrow_forward(c) Argon d) Fluorine 6. The number of nonmetal atoms in Al2(SO4)3 (a) 2 15 (b) (c) 12 (d) 8 7. Which of the following properties of water is not a (a) Water normally boils at 100°Carrow_forward
- QUESTION 1)Describe the PHYSICAL PROPERTIES of the followingsubstances? 2)Specifically, what type ofmatter is this? (e.g. halogen) (a) Potassium dichromate(b) Glucose (C6H12O6)(c) Magnesium(d) Bromine, Br2(e) NiSO4·6H2O(f) Sulfur(g) Iodine, I2(h) PbI2(i) Copper(j) Stainless steel(k) Ethanol, C2H5OH(l) Zinc(m) Hydrochloric acid(n) Aluminum(o) Icearrow_forwardGive the formulas for the following ionic compoundsarrow_forwardA 1.30 g sample of titanium chemically combines with chlorine gas to form 5.16 g of titanium chloride. (a) What is the empirical formula of titanium chloride? (b) What is the percent by mass of titanium and the percent by mass of chloride in the sample?arrow_forward
- Mass of 0.1 mole of methane is (a) 1.6 g (b) 0.1 g (c) 1g (d) 16 garrow_forwardA compound has the composition of 54.53% Carbon, 9.15% Hydrogen, and 36.32% Oxygen, by mass. If the molar mass is 88.1 g/mol, what is its molecular formula? (A) C2H4O (B) C4H8O2 (C) C6H10O2 (D) C6H12O3arrow_forwardWrite empirical formulas for the compounds represented by the molecularformulas.(a) C4H8 (b) B2H6 (c) CCl4arrow_forward
- What is the total mass (amu) of carbon in each of the following molecules?(a) CH4(b) CHCl3(c) C12H10O6(d) CH3CH2CH2CH2CH3arrow_forwardA binary compound of oxygen and an unknown element, x, has the formula XO and is 39.70 mass % oxygen. (a) What is the atomic weight of element x ? u (b) What is the symbol for the element on the periodic table? x = (c) Is the element x a metal or not? (d) Is the compound xO likely to be ionic or covalent? (e) What is the name of the compounc 4 question attemptsarrow_forward1c.arrow_forward
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