Chemistry

The letter "p" in the symbol 4p3 indicates the ____ A spin of an electron. B orbital shape. C principle energy level. D speed of an electron.

Ralph Lopez

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Using off-road vehicles does not contribute to the process of erosion. true or false

Eric Morgan

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The black sand beaches in hawaii are comprised of ________.

Jeffrey Rodriguez

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Calculate the percent composition by mass of each element in kclo2.

William Cain

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What element has two electrons in its 4d sub level?

Eric Morgan

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Which of the following compounds will produce H2O as one of the products when it decomposes? Cu(OH) 2 Hg(ClO3)2 MgCO3 CaO

Caroline Campbell

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The functional group in an alcohol is the _____ group.

Carlton Burgess

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Which diagram shows electrons violating the Pauli exclusion principle? Download png

Kaitlin Dean

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Hno3(aq)+k2so3(aq)→ express your answer as a chemical equation. identify all of the phases in your answer.

Jennifer Patterson

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Materials of low mass are combined to form a substance of higher mass during ____.. a.. fission. b.. fusion. c.. both A and B. d.. neither A nor B.

Chelsea Hayes

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Determine the density of nh3 gas at 435k and 1.00atm

Mindee Nelson

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Which gas occupies the highest volume at STP? 0.02 mol of O2 0.1 mol of Cl2 1 mol of N2 2 mol of H2

Jeremy Wood

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Which processes represent one chemical change and one physical change? (1) freezing and melting (2) freezing and vaporization (3) decomposition and melting (4) decomposition and combustion

Ross Pratt

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Which proportionality applies to Avogadro’s law?

Jodi Brooks

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Find the block labeled ? in Figure 2. What is its atomic number? How many valence electrons does it have? Which of the elements shown in Figure 2 will it most resemble? Download png

Jeremy Wood

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What do you call the ability of a gas to completely spread out and mix with other substances?

Jodi Brooks

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How many covalent bonds does carbon form if each of its unpaired electrons participate in one bond?

Amanda Johnson

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How many structures are possible for a trigonal bipyramidal molecule with a formula of ax3y2?

Donald Ward

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How many atoms are there in 5.10 moles of sulfur?

Kristi Hammond

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What do we know about the consumption of an enzyme during a metabolic reaction in the body?

Brandon Scott

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#1. Which of the following materials is a substance? air gasoline stainless steel silver. #2. What kind of substance? a pure substance? that's silver. a homogeneous substance?

Ronald Miller

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Formed by a spinning column of air that touches the ground in 1% of thunderstorms A. Thunderstorms B. Lightning C. Toranado D. Hurricane

Craig Stewart

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When do phase transitions occur in molecules?

Jodi Brooks

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Which of the following mass units is the largest? a) 1 cg b) 1 dg c) 1 mg d) 1 ng

Kristi Hammond

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Which compound has the highest melting point? Al2(CO3)3 C12H22O11 C8H18 H2O

Zach Chandler

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The particles of a suspension are dissolved into the solvent. a. True b. False

Ramon Kelly

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All atoms of uranium have the same... 1) Mass Number 2) Atomic Number 3) Number of Neutrons plus Protons 4) Number of Neutrons plus Electrons

Dana Keller

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In comparison with liquids and gases, solids are a. more dense. b. more easily compressed. c. less organized. d. more likely to flow.

Chelsea Hayes

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URGENT!!!! HNO3 and H2CO3 are examples of A.acids b.bases c.salts neutral compounds.

Jennifer Patterson

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Which of the following is not equal to 0.1 centimeters? 0.000001 kilometers (km) 0.001 meters (m) 10 millimeters (mm) 1000 micrometers (µm)

Annie Barnes

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Which group of atoms has this electron dot structure?

Chelsea Hayes

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What would be the subscripts for the formula unit Ca_O_?

Brandon Scott

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Which of the following substances dissolves most readily in gasoline?

Bethany Evans

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The size of the chosen symbols on a graph may be used to indicate the:

Jodi Brooks

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Name the salt [ni(h2o)3(co)]so4. the oxidation number of nickel is +2. enter the name.

Deborah Edwards

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A piece of sodium metal can be described as

Kathy Robinson

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Jack weighs 176 pounds (80 kilograms). what would be his rda for protein? 10 grams 64 grams 80 grams 27 grams

Caroline Campbell

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What are the products of the double-replacement reaction between potassium chloride and silver acetate?

Daniel King

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Give the systematic name for this coordination compound. k3 cr(cn)6

Ramon Kelly

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Calculate the molar solubility of lead thiocyanate in 1.00 M KSCN.

Karen Wright

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A rigid cylinder with a movable piston contains 50.0 liters of a gas at 30.0 degree C with a pressure of 1.00 atmosphere. What is the volume of the gas in the cylinder at STP? (1) 5.49 L (3) 55.5 L (2) 45.0 L (4) 455 L

Karen Wright

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How many moles of nh3 can be produced from 15.0 mol of h2 and excess n2?

Jodi Brooks

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Calcium hydride reacts with water to form hydrogen gas and calcium hydroxide. How many grams of calcium hydride are needed to generate 53.5 liters of hydrogen gas if the pressure is 814 torr at 21*C.

Cynthia Baker

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