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Chemistry

Luka Shields

Which of the following shows a chemical reaction in which aluminum and hydrochloric acid are the reactants and aluminum chloride and hydrogen are the products? A. aluminum + aluminum chloride → hydrochloric acid + hydrogen B. hydrochloric acid + hydrogen → aluminum chloride + aluminum C. aluminum + hydrochloric acid → aluminum chloride + hydrogen D. aluminum chloride + hydrogen → aluminum + hydrochloric acid

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Chemistry

Genesis

In which ways do humans affect the environments of animals?

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Chemistry

Kyla Sutton

How do you set up a proper experiment

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Chemistry

Guest

Rubidium and cesium have similar chemical

properties because, in the ground state, the

atoms of both elements each have

(1) one electron in the outermost shell

(2) two electrons in the outermost shell

(3) one neutron in the nucleus

(4) two neutrons in the nucleus

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Chemistry

Destiny

Identify the major species in solution after the reaction of hydrochloric acid and sodium hydroxide.

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Chemistry

Eduardo Garner

What is the purpose of a buffer?

a. increase the pH of a solution

b. decrease the pH of a solution

c. resist changes in pH

d. procedure used to determine pH of solution

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Chemistry

Madyson Munoz

The concentration of a solution can be expressed in a number of ways. choose the solution expressions that are equal to a solution that contains 1 mg/ml solute.

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Chemistry

Koty

Which two terms below BOTH describe the igneous rock granite?

felsic and extrusive

ultramafic and intrusive

felsic and intrusive

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Chemistry

Baby Bird

What is the [h3o + ] in a 0.050 m solution of ba (oh) 2?

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Chemistry

Rory Russo

An experiment at Sandia National Labs in New Mexico is performed at an atmospheric pressure of

788.7 millimeters of mercury (mm Hg). What is this pressure in atmospheres (atm) ?

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Chemistry

Mya Stanton

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

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Chemistry

Jacqueline Burke

What did Ernest Rutherford's gold foil experiment demonstrate about an atom? A. Each atom is composed of electrons and positive material. B. The mass of the atom is evenly spread throughout the atom. C. Neutrons are located in the center of the atom. D. Positive charge occupies a very small volume in the atom.

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Chemistry

Turner

Which statement explains why low temperature and high pressure are required to liquefy chlorine gas?

(1) Chlorine molecules have weak covalent bonds.

(2) Chlorine molecules have strong covalent bonds.

(3) Chlorine molecules have weak intermolecular forces of attraction.

(4) Chlorine molecules have strong intermolecular forces of attraction.

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Chemistry

Titus Douglas

Write the formula of each compound, and determine its molecular (formula) mass: (a) sodium dichromate; (b) ammonium Perchlorate; (c) magnesium nitrite trihydrate.

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Chemistry

Lilian Sparks

Calculate the pH of a (0.000765) M solution of KOH

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