The molecular formula of ethanol is C_(2)H_(6)O Which of the following statements is INCORRECT? a. The empirical formula of ethanol is' the same as its molecular formula. b. The empirical formula of ethanol is CH_(3)O. c. The simplest ratio of atoms of each element present in ethanol is 2:6:1 d. Ethanol contains two carbon, six hydrogen, and one oxygen atom.

Keep potassium chloride or potassium phosphate readily available in floor stock. True False

Which of the following IMFs break when a sample of NaCl boils?[Select all that apply.) Hydrogen bonds Dipole-dipole forces Ion-induced dipole forces Dispersion forces D Ion-dipole forces D Ionic interactions D Dipole-induced dipole forces Covalent bonds

Which of the following best describes hydrogen bonding? Strong electrostatic attraction between oppositely charged ions Very strong bonding between cations and anions Very strong bonding from the sharing of electrons between atoms Electrostatic attraction between charged areas of adjacent molecules

What is the major difference between metallic bonding and ionic bonding? Metallic bonding is only with non-metals, ionic bonding is with any atoms Metallic bonding is between metals and non-metals Ionic bonding is between two metals, metallic bonding is between a metal and non-metal Metallic bonding is among one type of metal atoms, ionic bonding is between metals and non-metals

A beryllium atom has four electrons. What orbitals will the electrons occupy? porbitals only s orbitals only s orbitals and p orbitals s orbitals and d orbitals

Write the chemical formula for disilicon hexabromide. Express your answer as a chemical formula.

When phases of a substance are at equilibrium, the molecules are fixed in their phase. True False

How many orbitals are in the 4p subshell? 1 3 4 5 none of the above

13) What is the molar mass of a 0.726 g sample of gas that occupies 855 mL at 1 .20 atm and 18^circ C

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Phosphorus reacts with iodine as shown in the chemical reaction below.What is the percent yield of the reaction if 28.2 g $Pl_{3}$ is obtained from the reaction of 48.0 g of 12 with excess phosphorus? $2P(s)+3I_{2}(s)\rightarrow 2PI_{3}(s)$ 51.7 g 51.48 51.5 g None of the above 51.98

Select the pair that has the larger atom or ion listed first. $Br^{-},Se^{2-}$ $S,S^{2-}$ $Cl,Cl^{-}$ $F^{-},Ne$ $P,P^{3-}$

What information do you need to look at on the SDS? There is 1 correct answer. Look at Section 2 - Hazards Look at Section 3 Composition / Information on Ingredients Look at Section 4 - First Aid Measures Look at Section 5 - Fire-Fighting Measures Look at Section 6 - Accidental Release Measures

Breaking bonds is hydrolysis. is dehydration synthesis. stores energy. is endergonic.

Which statements are true regarding reaction rates'[Select all that apply.] Larger activation energies are associated with faster reaction rates. Higher reactant concentrations are associated with faster reaction rates. Reducing the activation energy for a reaction increases its reaction rate. Reaction rates depend on how likely molecules are to collide in the correct orientation to react. Reactions that give off heat occur rapidly. Reactions that absorb heat occur rapidly. Large changes in enthalpy are associated with fast reaction rates. At high temperatures molecules are more likely to collide with enough energy to initiate a reaction. Two molecules must collide with one another to react.

If 5.00 g of gray iron powder reacts with 2.38 g of red phosphorus powder, what is the mass of the iron phosphide product? $\square $

How many oxygen molecules do we need to produce four molecules of water? a) 4 b) 2 C) 3 d) 1

6. How many hydrogen atoms are in the chemical formula $C_{6}H_{12}O_{6}$ o 6 24 18 12

What type of chemical reaction is illustrated in the following example? $FeBr_{3}(aq)+AgNO_{3}(aq)\rightarrow Fe(NO_{3})_{3}(aq)+AgBr(s)$ combination reaction decomposition reaction single-replacement reaction double-replacement reaction neutralization reaction

Foamers and defoamers work by affecting the __ of liquid/gas separation. Fill in the blank.