2. The creation of carbon monoxide is an effect. What is one cause? A. the regrouping of the atoms in table salt B. the burning of fossil fuels C. cleaning swimming pools D. operating a stove 3. Table salt can be separated into sodium and chlorine. Sodium is explos is a gas that can kill people. What can be concluded from the statements above? A. A harmful compound can become harmless when its elements are separ B. A harmless compound can become harmful when its elements are separ C. Breaking a compound into its separate elements has no noticeable effect D. Breaking a compound into its separate elements can create carbon dioxic 4. Based on the information in the passage, what is true of gases? A Some, but not all, gases are harmful to humans B. Any gas with carbon in it is not harmful to humans. C. All gases are harmfül to humans. D. No gases are harmful to humans. 5. What is this passage mainly about?

2. The creation of carbon monoxide is an effect. What is one cause? A. the regrouping of the atoms in table salt B. the burning of fossil fuels C. cleaning swimming pools D. operating a stove 3. Table salt can be separated into sodium and chlorine. Sodium is explos is a gas that can kill people. What can be concluded from the statements above? A. A harmful compound can become harmless when its elements are separ B. A harmless compound can become harmful when its elements are separ C. Breaking a compound into its separate elements has no noticeable effect D. Breaking a compound into its separate elements can create carbon dioxic 4. Based on the information in the passage, what is true of gases? A Some, but not all, gases are harmful to humans B. Any gas with carbon in it is not harmful to humans. C. All gases are harmfül to humans. D. No gases are harmful to humans. 5. What is this passage mainly about?

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter9: Chemical Quantities

Section: Chapter Questions

Problem 69AP

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Similar questions

(For Exercises 4546) Solutions containing nickel(II) ion are usually bright green in color. When potassium hydroxide is added to such a nickel(II) solution, a pale-green fluffy solid forms and settles out of the solution. The fact that a reaction takes place when potassium hydroxide is added to a solution of nickel(II) ions is an example of a properly. . The fact that a solution of nickel(II) ion is bright green is an example of a property.
hat do the coefficients of a balanced chemical equation tell us about the proportions in which atoms and molecules react on an individual (microscopic) basis?
Explain the termselement, afoul, and compound. Provide an example and microscopic drawing of each.
The burning of gasoline in automobile engines is a chemical reaction. In light of the law of conservation of mass, explain what happens to the gasoline in your cars tank as you drive.
You have two distinct gaseous compounds made from element X and element Y. The mass percents are as follows: Compound I: 30.43% X, 69.57% Y Compound II: 63.64% X, 36.36% Y In their natural standard states, element X and element Y exist as gases. (Monatomic? Diatomic? Triatomic? That is for you to determine.) When you react gas X with gas Y to make the products, you get the following data (all at the same pressure and temperature): 1. volume gas X + 2 volumes gas Y2 volumes compound I 2. volumes gas X + 1 volume gas Y2 volumes compound II Assume the simplest possible formulas for reactants and products in the chemical equations above. Then, determine the relative atomic masses of element X and element Y.
If you had a mole of U.S. dollar bills and equally distributed the money to all of the people of the world, how rich would every person be? Assume a world population of 7 billion.
Provide a reasonable estimate for the number of atoms in a 150-lb adult human. Use the information given in Table 20.2.
A pure substance A is found to change upon heating into two new pure substances B and C. Substance B, but not substance C, undergoes reaction with oxygen. Based on this information we definitely know that ____. A. substance A is a compound and C is an element. B. Both A and B are compounds. C. is a compound and C is an element. D. A is a compound. Vanillin contains 63.15% C, 5.30% H, and 31.55% O whether it is extracted from vanilla beans, synthesized chemically from clove oils, or extracted from wood pulp wastes. Vanillin is most likely to be: A. homogenous mixture of elements B. heterogeneous mixture of elements C. compound of C, H, and O D solution of C in H and O A solid melts gradually between 85°C and 95°C to give a milky, oily liquid. When a laser beam shines through the liquid, the path of the beam is clearly visible. The milky liquid is likely to be: A.heterogeneous mixture c. gaseous solution B.homogeneous mixture d. compound If you were…
Which of these is NOT true of chemical changes? A) Chemical changes are state changes like a solid turning to aliquid or a liquid turning to a gas. B) Chemical changes can produce heat. C) A chemical change is a change in composition of a substance. D) The rearrangement of chemical bonds is a characteristic of chemical changes. E)Chemical changes result in new substances being formed.
About Sampling, tick only the incorrect alternative(s). Choose one or more: A) Identifying the nature of a substance present in an unknown sample is called qualitative analysis. The process of measuring how much a constituent is present in a substance is called quantitative analysis. B) A type of error that is known due to procedures that cause a measure to be too large or too small is called a random error, such as reading a scale. C) Sample preparation is the process in which a representative sample is converted into a form suitable for chemical analysis. This usually means dissolving the sample. For a sample with low analyte concentration it may need to be diluted before being analyzed. D) Sampling is the process used to collect a representative sample for analysis. As real abnormals, as regulators are used in real experiments, they also typically prepare some degree of sample preparation to remove substances that do not interfere with the analysis of the desired analyte and…
Given these reactions, where X represents a generic metal or metalloid 1) H2(g)+12O2(g)⟶H2O(g)Δ?1=−241.8 kJ1) H2(g)+12O2(g)⟶H2O(g)ΔH1=−241.8 kJ 2) X(s)+2Cl2(g)⟶XCl4(s)Δ?2=+159.7 kJ2) X(s)+2Cl2(g)⟶XCl4(s)ΔH2=+159.7 kJ 3) 12H2(g)+12Cl2(g)⟶HCl(g)Δ?3=−92.3 kJ3) 12H2(g)+12Cl2(g)⟶HCl(g)ΔH3=−92.3 kJ 4) X(s)+O2(g)⟶XO2(s)Δ?4=−517.9 kJ4) X(s)+O2(g)⟶XO2(s)ΔH4=−517.9 kJ 5) H2O(g)⟶H2O(l)Δ?5=−44.0 kJ5) H2O(g)⟶H2O(l)ΔH5=−44.0 kJ what is the enthalpy, Δ?,ΔH, for this reaction? XCl4(s)+2H2O(l)⟶XO2(s)+4HCl(g)
A molecule has a mass of 4.65 x 10^-23 g. Provide twopossible chemical formulas for such a molecule.

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