Demetrius

The solution is clear and colorless correct answer: Fe 3+, Cr 3+, and Ni 2+ is absent Step B. The solution was made basic and barium hydroxide was added. A white precipitate formed. correct answer: SO4 2- is present Step C. Silver nitrate was added the precipitate dissolves. correct answer: Cl- is present Step C. A brown ring test was performed and the brown ring formed. correct answer: NO3- is present A flame test on the unknown showed a reddish color. correct answer: Ca 2+ is ...

Which of the following covalent single bonds is the most polar? A. C-H B. C-O C. C-C D. C-N correct answer: B: C-O Which of the following formulas would correspond to a cyclic alkane? A. C5H12 B. C6H14 C. C7H14 D. C8H18 correct answer: C: C7H14 The compound CH3(CH2)4CH3is called: A. hexane B. heptane C. pentane D. butane correct answer: A: hexane Which of the following is nota property of alkanes? A. Less dense than water B. Strong odor C. Flammable D. Insoluble in water correct an...

Alkane RCH3 Alkene (internal) Alkene (terminal) Nitrile RC≡N Ether R-O-R Epoxide Thiol RCH2-SH Sulfide R-S-R Disulfide R-S-S-R Sulfonium salt Quaternary ammonium salt Aniline Phenol Carboxylic acid Acyl chloride Acid anhydride Ester Thioester Amide (NH2 NHR NR2)

What is the symbol for a proton? P can also be replaced with an H What is the symbol for a neutron? What is the symbol for an electron? e can also be replaced with a β What is the symbol for a positron? e can also be replaced with a β What is the symbol for an α particle? He can also be replaced with an α What is the symbol for a gamma particle? What is the charge on an alpha ray? 2+ What is the charge on a beta ray? 1- What is the charge on a gamma ray? 0 W...

Gases are more soluble in _______ water. correct answer: cold Is the gas to aqueous reaction endo or exothermic? correct answer: Exothermic What is lattice enthalpy? Its sign of dH? correct answer: The enthalpy change associated with going from solid to gas. It is always endothermic (+dH) What is the enthalpy of hydration? Its sign of dH? correct answer: Enthalpy change associated with going from gas to aqueous. It is always exothermic (-dH) What is enthalpy of solution? correct ...

What is named first the cation or anion? correct answer: Cation How many Ligands are in [Cr(NH3)6](NO3)3 correct answer: 6 How many Ligands are in K[Au(OH)4] correct answer: 4 Oxidation number of the metal in K[Au(OH)4]? correct answer: +3 explanation: hydroxide has a charge of -1, since there are a total of 4 hydroxides the total (-) charge is -4. The charge of K is +1. Therefore the charge of Au must be +3. +4 + (-4)=0 Within a complex ion ligands are named in _____________ ord...

What is the principal form of benzoic acid at pH 8.2 if the pKa value is 4.2 correct answer: So, at pH 4.20, there is a 1:1 mixture of benzoic acid (HA) and benzoate ion (A-). At pH = pKa + 1 (= 5.20), the quotient [A-]/[HA] is 10:1. At pKa + 2 (= 6.20), the quotient [A-]/[HA] is 100:1. As pH increases, all the way to pKa + 4 the [A-]/[HA] is 10000:1 *The predominant form of benzoic acid at pH 8 is the benzoate anion For a monoprotic system, the species ___ is the predominant form when ...

Electronegativity A measure of the force of an atom's attraction for the electrons it shares in a chemical bond with another atom -increases from left to right -increases from bottom to top Covalent bond Forms when electron pairs are shared between two atoms whose difference in electronegativity is 1.9 or less Polar covalent bond The more electronegative atom has a partial negative charge, indicated by the 8- The less electronegative atom has a partial positive charge, indicated by the ...

Average Rate of Change and SLOPE Mean same thing, It's the number in front of x or the "m" in front of x Exponential DECAY graphs Decay goes down Exponential GROWTH graph Growth goes up Midpoint formula The point in the middle of a line segment Parallel lines and slope Have the same or equal slopes Perpendicular lines & slope Have negative reciprocal slopes (flipped and sign changed) Ex. 3/2--> -2/3 Domain of a relation Domain: the x coordinates, input valu...

document that contains supreme law of the land correct answer: constitution clause that upholds that the "document" is supreme correct answer: supremacy clause why is our law considered a living document? correct answer: it can be ammended by the Supreme Court and so while it was written a long time ago it is still being changed to this day in which articles of the confederation you will find... correct answer: legislative branch qualifications to be US president correct answer...

Abolitionistist correct answer: An individual opposed to slavery Affirmative action correct answer: Various governmental policies that address discrimination against women and minority groups Adams-Onis Treaty correct answer: Treaty negotiated by John Quincy Adams and Luis de Onis, in which Spain ceded Florida and Oregon country to the United States in exchange for sovereignty over Texas Al-Quada correct answer: International terrorist organization held responsible for the September...

Government EOC Practice (This study set will include terms, government systems, monarchies, economic systems, philosophers, rights, amendments, powers, Missouri's legislative body, branches of government, the articles of confederation, constitutional conventions, federalists papers, executive departments, policies, and application of amendments. I hope this will help you prepare for your Government EOC!)

Civics EOC Review Practice (This is a review for the 7th Grade Civics EOC exam for the state of Florida)

Activation Energy amount of energy needed to start a reaction Amino Acid Bounded by peptide bonds; monomer of a protein. Are the building blocks of proteins Carbohydrate (monosaccharides) main source of energy for the cell; CHO Catalyst Used in enzymes to lower the activation energy and speed up the reaction Enzyme Protein and Catalyst; have an active site and a substrate Lipid (1 glycerol = 3 fatty acids) used for long term energy storage, make up the phospholipid bila...

the belief (theory) that it was the right of the United States to occupy all of America from Sea to Shining Sea! correct answer: Manifest Destiny The Census of 1890 announced the official end of the American Frontier (Frederick Jackson Turner) correct answer: Turner's Frontier Thesis this war between the states (CSA v. USA) promoted the growth of industrialism in the late 1800s (steel, railroads, communication, weapons, mass production of pre-made goods) correct answer: The Civil War ...

y=mx+b correct answer: line m is slope b is y-intercept Slope correct answer: Rise Change in Y ------- ---------------- Run Change in X Αn=A₁+(n-1)d 3,5,7,9... (a₁) A₅₀=3+(50-1)2 =3+49(2) =3+98 50th term= 101 correct answer: Arithmetic Sequence n→ term you're looking for (50) a₁→1st term d→common difference y-y₁=m(x-x₁) correct answer: Point-Slope form Needs one point and the slope When solved, you get an equation Function correct answer: Ar...

EOC DIT EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS

biomedical science correct answer: the application of the principles of the natural sciences, especially biology and physiology control group correct answer: the group in an experiment where the independent variable being tested is not applied so that it may serve as a standard for comparison against the experimental group where the independent variable is applied dependent variable correct answer: the measurable effect, outcome, or response in which the research is inerested experim...

activation energy correct answer: energy needed to start a chemical reaction; lowered by enzymes active transport correct answer: movement of molecules across a membrane requiring energy to be expended by the cell adaptation correct answer: inherited characteristic that increases an organism's chance of survival allele correct answer: the different forms of a gene; could be dominant or recessive amino acid correct answer: basic building blocks of proteins analogous structure...

Antibody correct answer: An antigen-binding immunoglobulin, produced by B cells, that functions as the effector in an immune response Antigen correct answer: A foreign macromolecule that does not belong to the host organism and elicits an immune response Bioinformatics correct answer: The collection, classification, storage, and analysis of biochemical and biological information using computers especially as applied in molecular genetics and genomics Concentration correct answer: Th...