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Chemistry

Paris Acosta

Suppose a 500. mL flask is filled with 1.0mol of CO, 1.5mol of H2O and 0.70mol of CO2. The following reaction becomes possible: + COgH2Og + CO2gH2g The equilibrium constant K for this reaction is 3.80 at the temperature of the flask. Calculate the equilibrium molarity of CO. Round your answer to two decimal places.

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Chemistry

Madyson Dunlap

Which term best defines a saturated hydrocarbon with single bonds only?

a. alkane

b. isomer

c. alkene

d. alkyne

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Chemistry

Malaki Singleton

Which of the following is TRUE if a system WILL NOT hold a vacuum after it has been evacuated? A. The system is ready to be charged. B. The system has been adequately evacuated. C. The system may be leaking. D. An expansion valve is clogged.

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Chemistry

Abdiel Foster

Balance each equation by writing the correct coefficient (put a space in the box if no coefficient is needed). Then, identify the type of reaction taking place.

1. CaCO3 → CaO+CO2

___CaCO3 → ___CaO+___CO2 is a decomposition reaction.

2. O2 + N2 → NO2

___O2+___N2 → ___NO2 is a synthesis reaction.

3. FeS + HCl → FeCl2 + H2S

___FeS+___HCl → ___FeCl2+___H2S is a replacement reaction.

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Chemistry

Amya

Roxanne was asked by her teacher to explain why sodium ions (Na) and chlorine ions (CI) combine into sodium chloride (NaCl).

Roxanne said it was because chlorine is highly electronegative and sodium has a low ionization energy. What else could she

include in her explanation?

Tons with opposite charges are electrically attracted to each other

A one-to-one ratio of Na and ci'is electrically neutral

Two atoms may share one or more electrons equally in order to fill their electron shells.

The ions Na and cr both have full electron shells.

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Chemistry

Ollie

What is the mass of the Earth?

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Chemistry

Malia Walker

Atoms with loosely held valence electrons have 1. high ionization energy and high electron affinity. 2. high ionization energy and low electron affinity. 3. low ionization energy and high electron affinity. 4. low ionization energy and low electron affinity. 017

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Chemistry

Ayaan Orr

What is a mesurement that describes how close the measurement comes to the true value

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Chemistry

Mckayla Watson

SO2 (g) + NaOH (s) = Na2SO3 (s) + H2O

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Chemistry

Scarlet Wu

If humans can see water but not air, can fish see air but not water?

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Chemistry

Brendan Brock

What are three objects that are not in motion and how you know that they are not in motion

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Chemistry

Nathan Rangel

Complete the mechanism for the cleavage of the ether by adding any missing atoms, bonds, charges, nonbonding electrons, and curved arrows.

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Chemistry

Desiree Underwood

A sentence for physical weathering

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Chemistry

Amy Miller

In order to dilute 1.0L of a 6.00M solution of sodium hydroxide to 0.500M concentration, how much water (in mL) must you add?

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Chemistry

Haylie Colon

In which isotope is the strong nuclear force not strong enough to balance electrostatic forces between protons?

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