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Chemistry

Tanya Maynard

According to Rutherford, what does the nucleus contain?

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Chemistry

Janiah Conley

When is alpha particle emission most likely to occur?

A. When the nucleus has more than 83 protons.

B. When the ratio of neutrons to protons in the nucleus is too high to be stable. C. When the nucleus has a mass of more than 83 amu.

D. When the ratio of neutrons to protons in the nucleus is not exactly balanced.

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Chemistry

Elliana Clay

What object is being acted on by balanced forces?

A. A snowflake that falls and lands on a roof

B. A skateboard that rolls increasingly faster down a hill

C. A baseball that rolls to a stop in a field

D. A car that moves at a constant speed in one direction

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Chemistry

Tyrone Curry

The density of an object has the equation. If an object has a mass of 85 g and a volume of 92 cm3, what is its density?

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Chemistry

Simeon Weiss

Compute 214.056 + 9.3456. Round the answer appropriately

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Chemistry

Issac Green

How ocean waves affect the shape of the land on our planet

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Chemistry

Sherlyn Landry

Based on sulubility rules, which of the

followingwill occur when solutions of ZnSO4 (aq)

andMgCl2 (aq) are mixed? Write the NIE if aprecipitation

is considered likely.

A. ZnCl2 wil

precipitate; Mg2andSO42_ will be

spectatior ions.

B. ZnSO4 will precipitate; Mg2 + andCl-

will be spectator ions.

C. MgSO4 will precipitate; Zn2+and Cl-

will be spectator ions.

D. MgCl2 will precipitate; Zn2+

andSO42 - will be spectator ions.

E. No precipitate will form.

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Chemistry

Guest

Can somewhere show me the dimensional analysis of this?

The pressure inside of a can is 245mmHg. What is the pressure in kPa?

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Chemistry

Dakota Wallace

How does the molecular property of water affect its cohesive properties?

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Chemistry

Evony

Which organism is able to cause an infection?

A red blood cell

B bacteria

C white blood cell

D skin cell

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Chemistry

June Donovan

What is x + 4 = - x - 4?

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Chemistry

Jennifer Rubio

How many neutrons are in 7.00 g of 13c?

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Chemistry

Welch

This chart shows discrpitions of the atoms for four different substances. Which substance is a solid

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Chemistry

Rylee Glover

What is habitat destruction?

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Chemistry

Fletcher Benson

Nancy wants to find out how the steepness of a hill's slope affects the amount of soil that erodes from it. She has soil, a long pan, and a pile of books with which to build a model hillside. She has a watering can to model rainfall. In her experiment, which of the following factors should Nancy make sure that she does not change?

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