Chemistry » Page 8

Chemistry

Rayan

How do you convert from moles to atoms

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Chemistry

Guest

What is the smallest unit of a chemical compound that still has the properties of a compound?

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Chemistry

Sonny Cunningham

Is dam natural or made up by a people

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Chemistry

Hezekiah Warner

What is the conservation of mass

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Chemistry

Dominique Rojas

What happens to the temperature as one progresses through the layers of the earth from lithosphere toward the outer core?

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Chemistry

Angelica

What is the percent by volume of ethanol (C2H60 or ethyl alcohol) in the final solution when 45 mL of ethanol is diluted to a volume of 250 mL with water?

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Chemistry

Macy Hobbs

During the post transcriptional processing of pre-mRNA, a 5′ cap is added to an mRNA in step by step manner. Which of the following reason prevents the possibility of 5′ capping process involving methylation occurring on a DNA strand?

a. Lack of OH group on 2′ carbon of the deoxyribose

b. Lack of OH group on 3′ carbon of the deoxyribose

c. Lack of uracil nitrogenous base on the DNA strand

d. Lack of GTP hydrolysis associated with DNA transcription

e. Lack of H on 4′ carbon of the deoxyribose

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Chemistry

Riley Ward

What do elements Be, Mg, Ca have in common

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Chemistry

Hugh Skinner

A 0.100 m solution of which one of the following solutes will have the lowest vapor pressure? Which will have have the highest vapor pressure?

A) KClO4 B) Ca (ClO4) 2 C) Al (ClO4) 3 D) Sucrose E) NaCl

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Chemistry

Gwendolyn Bean

How many individual pencils are equal to 1 gross of pencils

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Chemistry

Dennis Chung

How does the polarity of water make water more cohesive than other liquids?

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Chemistry

Killian

2) which statement describes ionic bonding?

A) a lattice of ions in a sea of electrons.

B) electrostatic attraction between oppositely charged ions.

C) the sharing of electrons between atoms to gain a noble gas configuration.

D) the transfer of electrons from atoms of a non-metal to the atoms of a metal.

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Chemistry

Waylon Howard

How can fronts predict the weather?

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Chemistry

Tanya

Why does reducing solute particle size increase the speed at which the solute dissolves in water? A. It exposes more of the solute to the water molecules. B. It makes the temperature of the water significantly higher. C. It raises the pressure of the water molecules on the solute. D. It makes the water molecules move around faster.

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Chemistry

Yamilet Barnes

Phenol red is a common ph indicator. you add phenol red to an unknown substance and it turns yellow. what does this indicate about the ph of the substance?

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