Chemistry » Page 124

Chemistry

Kiley Chang

Which group of elements contains the most reactive metals? iron triad transition metals alkali metals alkaline earth metals

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Chemistry

Charlie Bailey

What important consideration needs to be made about the use of plastic sealing gaskets with oxygen regulators?

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Chemistry

Santino Roman

Which question cannot be explained by chemistry?

A. How does yeast make bread dough rise?

B. Why does sugar dissolve faster in hot water?

C. How does a convection oven cook food?

D. Why do peeled apples turn brown in air?

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Chemistry

Alec

Mendel identified a combination of "factors" inherited from each parent called a?

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Chemistry

Guest

In the lab, felipe has two solutions that contain alcohol and is mixing them with each other. he uses twice as much solution a as solution

b. solution a is 12% alcohol and solution b is 15% alcohol. how many milliliters of solution b does he use, if the resulting mixture has 78 milliliters of pure alcohol?

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Chemistry

Brodie Patterson

What is the IUPAC nomenclature for K2FECN5CO

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Chemistry

Kendall Humphrey

What is the volume of the sphere? Round your answer

to the nearest tenth.

cm

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Chemistry

Roderick Hanson

Enter a range of values for x, 2x+10, 14

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Chemistry

Jonah Gibson

Ruthenium-106 (Ru106) is used to treat melanoma in the eye. This isotope decays by β - emission with a half-life of 373.59 days. One source of the isotope is reprocessed nuclear reactor fuel. How many protons and how many neutrons does the Ru106 nucleus contain?

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Chemistry

Karson Ochoa

What conversion factor would you use to find the number of moles in 3.52x10^24 molecules

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Chemistry

Colten Larson

the solubility in mol/dm3 of 20.2g of potassium trioxonitrate (V) dissolved in 100g of water at room temperature is

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Chemistry

Grayson

Which process occurs at the anode in an electrochemical cell?

(1) the loss of protons

(2) the loss of electrons

(3) the gain of protons

(4) the gain of electrons

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Chemistry

Allyson Vang

What is natural transmutation?

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Chemistry

Noelle Hayes

An electron in a sodium atom gains enough energy to move from the second shell to the third the sodium atom becomes

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Chemistry

Delilah

What is temperature in science, how fast molecules move or how cold or hot something is?

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