Chemistry » Page 26

Chemistry

Helen Flowers

Which answer correctly describes the difference between covalent and ionic bonds?

A.

ionic: transfer of protons

covalent: transfer of electrons

B.

ionic: transfer of electrons

covalent: transfer of protons

C.

ionic: sharing of electrons

covalent: transfer of electrons

D.

ionic: transfer of electrons

covalent: sharing of electrons

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Chemistry

Jovanni

What are the first five elementsof the periodic table?

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Chemistry

India Blackburn

Name 3 characteristics that can be used to identify minerals

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Chemistry

Isabela

Hemoglobin, the oxygen-carrying protein in red blood cells, has four iron atoms per molecules ad contains 0.340 percent iron by mass. calculate the molar mass of hemoglobin

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Chemistry

Ava Carson

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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Chemistry

Marely Eaton

Elements on the periodic table are arranged by increasing?

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Chemistry

Delacruz

What is the difference between molecular formula and molecular model

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Chemistry

Colten Bell

The average kinetic energy of the atoms that make up a substance which is changing from a liquid to a solid is

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Chemistry

Justin Hunter

What might be a scientific question?

O

A. One that deals with how something happens

O

B. One that deals with morals and beliefs

O

C. One that deals with likes and dislikes

O

D. One that deals with right and wrong

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Chemistry

Ronan Horne

Calculate the energy released in the following fusion reaction. The masses of the isotopes are: 14N (14.00307 amu), 32S (31.97207 amu), 12C (12.00000 amu), and 6Li (6.01512 amu).

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Chemistry

Maci

How many grams of carbon dioxide are produced from 0.98 mol of Fe3O4?

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Chemistry

Janae Wright

There is inverse relation between pressure and diffusion in liquid phase?

•True

•False

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Chemistry

Jason

What do you need in order to do a stoichiometric calculation? (Choose

multiple)

Balanced Chemical Equation

Molar masses of compounds involved

The type of reaction taking place

Oxidation Numbers

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Chemistry

Amari Mccarty

The correct mathematical expression for finding the molar solubility (s) of sn (oh) 2 is:

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Chemistry

Baron Neal

18. which bond is most polar? H--F H--Cl H--Br H--I

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