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Chemistry

Which type of metals have high densities, strenght, and resistance to corrosion

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Chemistry

White powder, when heated, produces a colourless gas and a black solid. Is the white powder and element?

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Chemistry

8. 71.67 g of InBr2 was dissolved in water to a final volume of 650 mL. (A) What is the molar concentration of indium in the resulting solution? (B) If 25.0 mL of the solution in part A was diluted to 75.0 mL, what is the molar concentration of the resulting solution?

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Chemistry

Which of these is the Bronsted-Lowry acid in this equation?

CH3 - + H2O - - > CH4 + OH-

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Chemistry

Melting is a physical change in matter, so it doesn't change the chemical makeup or chemical properties of matter.

A: True

B: False

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Chemistry

If you bleach something red what color will it turn

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Jazlene Villarreal

Chemistry

Which body system does rheumatiod effect

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Chemistry

Why does the glass of water weigh less after the pill has dissolved? Why does the glass of water weigh less after the pill has dissolved? Nitrogen dioxide gas will be generated and released as the anti-acid pill dissolves. Water vapor will be generated and released as the anti-acid pill dissolves. Sulfur dioxide gas will be generated and released as the anti-acid pill dissolves. Carbon dioxide gas will be generated and released as the anti-acid pill dissolves?

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Chemistry

Assume that the potential energy of the products in a chemical reaction is 60 kilojoules. this reaction would be exothermic if the potential energy of the reactants were

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Chemistry

Which type of ions are formed when an acid is dissolved in water?

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Nikhil Stephenson

Chemistry

According to the collision theory, when can a chemical reaction occur?

When enough activation energy is added to correct the orientation of the particle collisions

When reactants collide with enough energy to intersect their valence shells and form new bonds

When reactants collide with enough mass to form new bonds and break apart the reactants

When the proper catalyst is added to break the chemical bonds in the reactants.

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Chemistry

Why is ice less dense than water?

A. When water freezes, it forms a crystal structure with less volume than liquid water.

B. Ice crystallizes with an open structure, and the gaps that form between the water molecules in ice increase its volume.

C. Water molecules slow their vibrations and move closer together when water freezes.

D. Some water molecules are lost when water freezes.

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Chemistry

The difference between isotopes for the same element will be found in the atoms'

a. number of protons.

b. number of electrons.

c. number of neutrons.

d. charges.

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Chemistry

216 J of energy is required to raise the temperature of a piece of aluminum from 15.0º C to to 35º C.

Calculate the mass of aluminum used.

(Specific heat of aluminum = 0.90 J ∙ º C-1 ∙ g-1)

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Chemistry

How much of the rock cycle can be observed directly? How much must be inferred? Think about both how long things take to happen in the cycle as well as where different parts of the cycle occur. Refer to specific parts of the cycle in your answer.

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