Concept explainers
(a)
Interpretation:
The formula of compound in which the combining ratios are as follows:
Sodium: hydrogen: carbon: oxygen, 1:1:1:3.
Concept Introduction:
The substance having similar atom is called an element. When two or more elements combined together chemically they form a pure substance called a compound. But in case of mixture, it is formed when two substances joined together without any
(b)
Interpretation:
The formula of compound in which the combining ratios are as follows:
Carbon: hydrogen: oxygen, 2:6:1.
Concept Introduction:
The substance having similar atom is called an element. When two or more elements combined together chemically they form a pure substance called a compound. But in case of mixture, it is formed when two substances joined together without any chemical bonding. Example of compound is H2 O, and example of element is N, example of mixture is mixture of sand and sugar.
(c)
Interpretation:
The formula of compound in which the combining ratios are as follows:
Potassium: manganese: Oxygen, 1:1:4.
Concept Introduction:
The substance having similar atom is called an element. When two or more elements combined together chemically they form a pure substance called a compound. But in case of mixture, it is formed when two substances joined together without any chemical bonding. Example of compound is H2 O, and example of element is N, example of mixture is mixture of sand and sugar.
Trending nowThis is a popular solution!
Chapter 2 Solutions
EP INTRO.TO GENERAL,ORGANIC...-OWL ACCE
- 2-43 Which group(s) of the Periodic Table contain(s): (a) Only metals? (b) Only metalloids? (c) Only nonmetals?arrow_forward2-73 (Chemical Connections 2D) Copper is a soft metal. how can it be made harder?arrow_forwardWrite the formulas of the following compounds:(a) barium chloride(b) magnesium nitride(c) sulfur dioxide(d) nitrogen trichloride(e) dinitrogen trioxide(f) tin(IV) chloridearrow_forward
- 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_forwardAnswer true or false. (a) Mendeleyev discovered that when elements are arranged in order of increasing atomic weight, certain sets of properties recur periodically.(b) Main-group elements are those in the columns 3A to 8A of the Periodic Table.(c) Nonmet.als are found at the top of the Periodic Table, metalloids in the middle, and metals at the bottom.(d) Among the US known elements,there are approximately equal numbers of metals and non metals.(e) A horizontal row in the Periodic Table is called a group.(f) The Group LA elements are called the "alkali metals"(g) The alkali metals react with water to give hydrogen gas and a metalhydroxide, MOH, where "M' is the metal."(h) The halogens are Group 7A elements.(i) The boiling points of noble gases (Group SA elements) increase goingfrom top to bottom of the column.arrow_forwardWrite the formulas of the following compounds:(a) chlorine dioxide(b) dinitrogen tetraoxide(c) potassium phosphide(d) silver(I) sulfide(e) aluminum nitride(f) silicon dioxidearrow_forward
- Write the symbol for each of the following ions. (Enter your answer in the form A X q± Z .) (a) the ion with a 3+ charge, 28 electrons, and a mass number of 69 (b) the ion with 36 electrons, 35 protons, and 44 neutrons (c) the ion with 91 electrons, 148 neutrons, and a 4+ charge (d) the ion with a 2+ charge, atomic number 40, and mass number 90arrow_forward2a.arrow_forwardv. Answer true or false. (a) Mendeleev discovered that, when elements are arranged in order of increasing atomic weight, certain sets of properties recur periodically. (b) Main-group elements are those in the columns 3A to 8A of the Periodic Table. (e) Nonmetals are found at the top of the Periodic Table, metalloids in the middle, and metals at the bottom. (d) Among the 116 known elements, there are approximately equal numbers of metals and nonmetals. (e) A horizontal row in the Periodic Table is called a group. () The Group 1A elements are called the "alkali metals." (g) The alkali metals react with water to give hydrogen gas and a metal hydroxide, MOH, where “M" is the metal. (h) The halogens are Group 7A elements. (1) The boiling points of noble gases (Group 8A elements) increase in going from top to bottom of the column.arrow_forward
- The seven most abundant ions in seawater make up morethan 99% by mass of the dissolved compounds. They are listedin units of mg ion/kg seawater: chloride 18,980; sodium 10,560;sulfate 2650; magnesium 1270; calcium 400; potassium 380;hydrogen carbonate 140.(a) What is the mass % of each ion in seawater?(b) What percent of the total mass of ions is sodium ion?(c) How does the total mass % of alkaline earth metal ions com-pare with the total mass % of alkali metal ions?(d) Which makes up the larger mass fraction of dissolved com-ponents, anions or cations?arrow_forwardWrite the formulas for the following compounds:(a) phosphorus pentachloride(b) dinitrogen monoxide(c) iodine heptafluoride(d) carbon tetrachloridearrow_forwardWrite the symbol for each of the following ions:(a) the ion with a 1+ charge, atomic number 55, and mass number 133(b) the ion with 54 electrons, 53 protons, and 74 neutrons(c) the ion with atomic number 15, mass number 31, and a 3− charge(d) the ion with 24 electrons, 30 neutrons, and a 3+ chargearrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning