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Chemistry

Hayden Coffey

A buffer solution is made that is 0.417 M in and 0.417 M in. If for is, what is the pH of the buffer solution? pH = Write the net ionic equation for the reaction that occurs when 0.120 mol is added to 1.00 L of the buffer solution. (Use the lowest possible coefficients. Omit states of matter.)

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Chemistry

Macie Oneill

BaCl2 (aq) + AgNO3 (aq) →

Express your answer as a chemical equation. Enter noreaction if no precipitate is formed.

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Chemistry

Gwendolyn Barr

Make a list of physical changes and chemical changes that you observe or see effects of in the school

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Chemistry

Brutus

Which equation obeys the law of conservation of mass? H2 (g) + O2 (g) → H2O (g) H2 (g) + O2 (g) → H2O (g) + 4He (g) 2H2 (g) + O2 (g) → 2H2O (g) H2 (g) → H2O (g) H2 (g) + O2 (g) → 2H2O (g)

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Chemistry

Guest

Which statement is true about sodium chloride (NaCl) ? It is a salt because it decreases the concentration of metallic ions. It is an acid because it is formed by the reaction of a salt and an acid. It is a salt because it is formed by the reaction of an acid and a base. It is an acid because it increases the concentration of nonmetallic ions.

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Chemistry

Tough Guy

After pyruvate oxidation, the chemical energy of how many carbons of the original glucose molecule is converted to chemical energy in the form of atp in the remaining steps of cellular respiration?

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Chemistry

Dalia

What do you call all elements that are clearly not metals?

? nonmetals

? metalloids

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Chemistry

Amiah Bailey

Which of the slightly soluble salts below will be more soluble in acidic solution than in pure water?

a. Mg (OH) 2

b. CaCO3

c. AgCl Mg (OH) 2

d. only Mg (OH) 2,

e. CaCO3, and

f. AgCl

g. CaCO3 only

h. both Mg (OH) 2 and CaCO3

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Chemistry

Lawrence Hood

What type of chemical bond is formed between two atoms of bromine

1. Metallic

2. hydrogen

3. Ionic

4. covalent

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Chemistry

Johns

Before oceanography was recognized as its own branch of science it was part of

A. Physics

B. Chemistry

C. Geometry

D. Natural science

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Chemistry

Devon Soto

For a chemical reaction to be spontaneous at all temperatures, which of the following conditions must be met? a. ΔS° > 0, ΔH° > 0 b. ΔS° > 0, ΔH° < 0 c. ΔS° < 0, ΔH° < 0 d. ΔS° 0 e. It is not possible for a reaction to be spontaneous at all temperatures.

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Chemistry

Deja Alexander

What is a Binary Compound? Is it related to the Ionic and Molecular compounds? if so, how so?

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Chemistry

Helen Flowers

Which answer correctly describes the difference between covalent and ionic bonds?

A.

ionic: transfer of protons

covalent: transfer of electrons

B.

ionic: transfer of electrons

covalent: transfer of protons

C.

ionic: sharing of electrons

covalent: transfer of electrons

D.

ionic: transfer of electrons

covalent: sharing of electrons

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Chemistry

Jovanni

What are the first five elementsof the periodic table?

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Chemistry

India Blackburn

Name 3 characteristics that can be used to identify minerals

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