Chemistry » Page 57

Chemistry

Jaylene Fox

Which of the following substances is never a Brønsted-Lowry base in an aqueous solution? Group of answer choicespotassium hydroxide, KOHsodium hydrogen phosphate, Na2HPO4sodium phosphate, Na3PO4ammonium chloride, NH4Clsodium bicarbonate, NaHCO3

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Chemistry

Demetrius Taylor

Why is gold less reactive than iron?

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Chemistry

Adrianna Hammond

Which statements about isozymes are true? Isozymes catalyze different reactions. Isozymes have identical kinetic properties. Isozymes are present in various developmental stages. Isozymes are encoded by the same gene. Lactate dehydrogenase is an example. Isozymes have different amino acid sequences.

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Chemistry

Archie

A fog over a lake. what two changes of state must occur to produce the fog? do the water molecules absorb or release energy during these changes of state? what happens to the motion of the water molecules as a result?

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Chemistry

Aileen Levine

Limes have a [H3O+] of 1.3 x 10-2 mol/L. Their pOH is

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Chemistry

Nathen Nunez

The human body is 0.0040% iron. How many milligrams of iron does a 165 pound person contain?

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Chemistry

Averi Rubio

Which of the following is the correct Lewis structure for ammonia (NH3) ? Note: Hydrogen and nitrogen have one and five valence electrons respectively.

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Chemistry

Zechariah Potts

Which of the following statements is true?

A. Particles of a solid have a very orderly, three dimensional arrangement and do not move

B. Particles of a liquid change shape and volume

C. Particles of a gas are able to slide past one another but are very close together

D. Particles of a plasma have broken apart

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Chemistry

Kaylah Kelley

How does hess's law use intermediate reactions to calculate the enthalpy of a desired reaction?

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Chemistry

Rihanna Montes

Which atomic particle dtermines the chemical behaviour of an atom?

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Chemistry

Jaxson

If you could travel to the Sun and back, about how far would you travel? A. 1 AU B. 2 AU C. 5 AU D. 10 AU

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Chemistry

Chelsea Vaughan

A scientist is conducting a descriptive experiment where she is monitoring sea level along coastal towns in California. What is a major benefit of this experiment?

The relationship shows cause and effect.

It is repeatable.

A large amount of data can be collected.

Results can change over time.

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Chemistry

Nikki

If the sum of the mass of the reactants is 12.5 what would be the sum of the products be? And explain how you know this

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Chemistry

Sammy

Name 5 types of alloys

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Chemistry

Janiyah Alvarado

What is the 3 types of matters

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