Chlorous acid. HClO_(2) contains what percent hydrogen by mass? 1.92% 25.0% 23.4% 1.47% 5.18%

The chemical trimethylamine N-oxide not only gives fish their fishy smell but also protects them from crushing hydrostatic pressure in deep waters. Trimethylamine N-oxide strengthens the bonds between water molecules in a fish's body. __ these water molecules maintain their linked structure at extreme depths, thus preventing pressure -related damage. Which choice completes the text with the most logical transition? Choose 1 answer:

9) Air is about 76% nitrogen by mass. Nitrogen is nonreactive because the triple bond in N_(2) is not easily broken. The bond energy of the N_(2) triple bond is 945kJmol-1 What is the corresponding wavelength (nm) of light needed to break this triple bond for one molecule? (assuming one photon interacts with only one molecule) A) 9.45times 10^5nm B) 326 nm C) 1.27times 10^5nm D) 0.157 nm E) 127 nm

Which is a characteristic of the polar water molecule? a tetrahedral electron domain geometry with covalently bonded atoms a linear shape with polar ionic bonds

Use the balanced equation below to answer the question. C_(3)H_(8)+5O_(2)arrow 4H_(2)O+3CO_(2) How many molecules of C_(3)H_(8) are in 4.33times 10^12 molecules of H_(2)O Write your answer in scientific notation Example: 1.23^ast 10^wedge -45 Answer

What is the Delta H_(rxn) for the following reaction? Hint: Use Table 10.3 (Page 430) in your textbook. 2NCl_(3)(g)arrow N_(2)(g)+3Cl_(2)(g) C -823kJ -117kJ -233kJ -475kJ -766kJ

Assuming the volume of the insoluble substance to be 92.5 mL and the mass to be 693.8 g , what is the density of the substance?Be sure to use the correct number of significant figures. 0.1333g/mL 7.50g/mL 7.500g/mL 0.133g/mL

What is the bond order of F_(2) Express your answer numerically as an integer. View Available Hint(s) square

Exercise 2.14 Describe the hybridization of the central atoms N and S in molecules and the molecular geometry of: a. NO_(2) b. SO_(3)

Isotopes of an element are atoms with different numbers of A electronic shells B neutrons C electrons D protons

Hot Questions

What is the mass number of a potassium $(K)$ atom that has 20 neutrons? The mass number is __ Blank 1: $\square $

An aqueous solution contains 0.22 M sodium cyanide. One liter of this solution could be converted into a buffer by the addition of: (Assume that the volume remains constant as each substance is added.) (Select all that apply.) 0.21 mol NaCl 0.21 mol HCN 0.11 mol $Ca(OH)_{2}$ 0.11 mol $HNO_{3}$ $0.22molHNO_{3}$

Dealta-9 -tetrahydrocannabinol (THC) is __ major psychoactive constituent. Cocaine's Speed's $LSD's$ Marijuana's

What is the pressure (in atm) in a 325 L tank containing 32 mol of argon gas at $45^{\circ }C$ 02.6 atm 0.36 atm 19 atm 4.0 atm 27 atm

The minimum energy required to initiate a chemical reaction is __ minimum energy initiation energy activation energy starting energy

Write a balanced equation to show the reaction between gaseous ethane with gaseous oxygen to form carbon monoxide gas and water vapor. $2C_{2}H_{6}(g)+5O_{2}(g)\rightarrow 4CO(g)+6H_{2}O(g)$ $2C_{2}H_{6}(g)+7O_{2}(g)\rightarrow 4CO_{2}(g)+6H_{2}O(g)$ $C_{2}H_{6}(g)+5O_{2}(g)\rightarrow 2CO(g)+3H_{2}O(g)$ $C_{2}H_{6}(g)+7O(g)\rightarrow 2CO_{2}(g)+3H_{2}O(g)$ $2CH_{3}(g)+5O(g)\rightarrow 2CO(g)+3H_{2}O(g)$

Which of the following coefficients is correct in balancing the following chemical equation: A $C_{57}H_{110}O_{6}(s)+BO_{2}(g)\rightarrow CCO_{2}(g)+DH_{2}O(l)$ $A=2,B=63,C=114$ and $D=110$ $A=110,B=163,C=114$ and $D=110$ $A=2,B=163,C=114$ and $D=110$ $A=110,B=163,C=114$ and $D=2$

Calculate the grams of $SO_{2}$ gas present at STP in a 5.9 L container. 0.249 0.269 15g 17g 649

The atomic number of an atom is defined as Arrangement of neutrons in the atomic nucleus. total number of electrons and neutrons. total number of energy levels. number of protrons in the atomic nucleus

The atomic weight corresponds to which of the following: number of protons and neutrons number of protons and electrons number of electrons and neutrons number of protons