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Chemistry

Kaden

Determine which decay process is being described in each case. the atomic number deceases by one, and the atomic mass is unchanged. the atomic number decreases by two, and the atomic mass decreases by four. the atomic number increases by one, and the atomic mass remains unchanged.

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Chemistry

Easton Castaneda

What kind of changes occur between atoms when substances undergo chemical reactions?

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Chemistry

Greta Nelson

What is the most stable part of the periodic table of elements

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Chemistry

Dwayne Vaughan

2. A solution of potassium cyanide, KCN, is made by dissolving 3.2 g of KCN in water. When this solution reacts with excess hydrochloric acid, HCl, it produces 0.30 g of poisonous hydrogen cyanide gas, HCN.

KCN + HCl - > KCl + HCN

(a) Calculate the theoretical yield of HCN.

hCalculate the percent yield of HCN.

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Chemistry

Toodles

Which is correct for kinetic particle theory. (It can be all correct or 2 of them correct)

A. In a solid, the particles are close together

B. All particles move at a constant speed

C. The higher temperature, the faster the particles move

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Chemistry

Leonidas Barrett

At what temperature will 6.21 g of oxygen gas exert a pressure of 5.00 atm in a 10.0-L container?

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Chemistry

Davian Dominguez

Describes how Anders Celsius devised the temperature scale that bears his name

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Chemistry

Janessa Campbell

Which tools do you use to measure mass, length, volume, and temperature?

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Chemistry

Kaitlynn

The diagram shows molecules in a fluid. Explain the sequence of events that happens when this fluid cools down. Be sure to focus on what happens to the molecules and to the fluid in general. Five events should be included in your answer.

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Chemistry

Fisher Ayers

Complete and balance the equation for the double replacement reaction LiOH (aq) + Fe (NO3) 3 (aq)

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Chemistry

Keshawn Estrada

Hexyne. What does the name of this hydrocarbon tell you about its molecular structure?

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Chemistry

Janelle Yoder

Match each processes with the correct transfer of energy.

~Energy Loss ... ~Energy Gain

Freezing

Sublimation

Evaporation

Melting

Deposition

Condensation

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Chemistry

Gisselle Moon

Is water a solid, liquid, or gas at 245 kelvin

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Chemistry

Romeo Daniel

The chemical symbol for a calcium ion is ca2. what does the 2 symbolize

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Chemistry

Athena

Draw the alcohol that is the product of the reduction of 3-methylpentanal

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