Please correct answer and don't use hand rating 10. State whether the substances listed in number 3-12 is and/or are Monoatomic, Diatomic, Triatomic, Tetra atomic, Octa atomic, Molecule, Compound, Element, and/or Mixture. Select/state allthat apply following the examples provided.Substance: Sodium Chloride (NaCl)Type of substance:?:For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).

Count the number of atoms present in one unit of the given compound or molecule.For exanple:O2: 2…

Answered: 10. State whether the substances listed…

World of Chemistry, 3rd edition

3rd Edition

ISBN:9781133109655

Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Chapter2: Matter

Section: Chapter Questions

Problem 22A

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Using Table 1.1, but without using your calculator, decide which has the larger mass: 20. mL butane or 20. mL bromobenzene 10. mL benzene or 1.0 mL gold 0.732 mL copper or 0.732 mL lead
A materials engineer has filed for a patent for a new alloy to be used in golf club heads. The composition by mass ranges from 25 to 31% manganese, 6.3 to 7.8% aluminum, 0.65 to 0.85% carbon, and 5.5 to 9.0% chromium, with the remainder being iron. What are the maximum and minimum percentages of iron possible in this alloy? Use Figure 2.12 to snake a prediction about how the density of this alloy would compare with that of iron; justify your prediction.
2.95 Engineers who design bicycle frames are familiar with the densities of aluminium (2.699 g/cm3), steel (7.87 g/cm3), and titanium (4.507 g/cm3). How does this information compare with Figure 2.12, and what would it suggest for changes in this figure if more shades were used for the density colour-coding? (Iron is the principal component of steel)
What is the chief factor that determines thephysical slateof a sample of matter?
Classify the substances represented by the models in Problem 1-58 as to the number of atoms present per molecule, that is, as diatomic, triatomic, tetraatomic, etc.
Which of the following represent physical properties or changes, and which represent chemical properties or changes? You curl your hair with a curling iron. You curl your hair by getting a “permanent wave” at the hair salon. Ice on your sidewalk melts when you put salt on it. A glass of water evaporates overnight when it is left on the bedside table. Your steak chars if the skillet is too hot. Alcohol feels cool when it is spilled on the skin. Alcohol ignites when a flame is brought near it. Baking powder causes biscuits to rise.
On October 21, 1982, the Bureau of the Mint changed the composition of pennies (see Exercise 120). Instead of an alloy of 95% Cu and 5% Zn by mass, a core of 99.2% Zn and 0.8% Cu with a thin shell of copper was adopted. The overall composition of the new penny was 97.6% Zn and 2.4% Cu by mass. Does this account for the difference in mass among die pennies in Exercise 120? Assume the volume of the individual metals that make up each penny can be added together to give the overall volume of the penny, and assume each penny is the same size. (Density of Cu = 8.96 g/cm3; density of Zn = 7.14 g/cm3).
Which of the following are compounds, and which are elements? aNa2S bBr2 cPotassium hydroxide dFluorine eCompound or element fCompound or element
Enter either the word "presence" or the word "absence" in the first blank, then the name of the metal in the second blank. For the metal, just use the appropriate simple name: aluminum, calcium, copper, iron, lead, or silver, no charges or states are necessary. Box 1 the (presence/absence) of _______ is confirmed Box 2 the (presence/absence) of _______ is confirmed
Since the Geologists at Grasberg know the density of gold to be 19.32g/cm^3 they were surprised by their result and assumed the nugget was fools gold. Explain to geologists why there might actually be gold in the nugget after all. Include all relevant terminology Also. Carbon has an atomic mass of 12.01 u. Is this a Physical change / chemical change or physical property / chemical propert
6.Express your answers to at least 5 significant figures. The mass of one mole of boron is 10.811 g. (a) What is the mass in u of one boron atom? answer was 10.81 (b) What is the mass in kg of one boron atom? ___x10^_____
metallic Brown, bluces ray mineral Describe the luster. Density = Mass: Volume: Mass: Volume: Mass: Volume: 9 mL 11.5 mL 9.6 mL 8 16 Density: 7,9133o4343| Density:8.854164c2 Mass ÷ Volume 81 g Density: Questions: 1. Write the transition metals that you tested in order from least dense to most dense. 2. Find copper, iron, and nickel on the periodic table. Did density increase or decrease as yc moved from left to right across the table? 3. Would you expect vanadium to be denser or less dense than iron?nodools sb no

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