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Finley Mullen
ChemistryChemistry
What is the atomic nucleus made of?

only neutrons

electrons

only protons

nucleons
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Hull
ChemistryChemistry
How many ml of 2.50 m hno3 are needed to prepare a 75.0 ml of 1.00 m hno3?
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Macey Ayala
ChemistryChemistry
For the reaction

CH3OH + O2 → HCO2H + H2O,

what is the maximum amount of HCO2H

which could be formed from 8.02 mol of

CH3OH and 15.49 mol of O2?
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Kate Schultz
ChemistryChemistry
How are large polymers formed?
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Ricky Jacobs
ChemistryChemistry
The parts that are either directly or indirectly related to each other in a system are known as what?

A) the flow

B) the boundary

C) the components

D) the input
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Maren Wolf
ChemistryChemistry
Which bond is most polar?
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Spud
ChemistryChemistry
4. Calculate the wavelength of radiation with a frequency of 8.0 x 104 Hz.
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Brice Nicholson
ChemistryChemistry
Two glasses labeled A and B contain equal amounts of water at different temperatures. Maya put a drop of blue dye into each of the two glasses. The table shows the time taken by the water in the two glasses to become blue

Dye Experiment

Glass Time

A 5 seconds

B 20 seconds

Which of the following statements is correct?

The water in Glass A is cooler than the water in Glass B, therefore, the particles in Glass A move faster

The water in Glass A is warmer than the water in Glass B, therefore, the particles in Glass A move faster.

The water in Glass A is cooler than the water in Glass B, therefore, the water particles in Glass A are stationary

The water in Glass A is warmer than the water in Glass B, therefore, the water particles in Glass A are stationary
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Lilia Murphy
ChemistryChemistry
If you remove all the particles from a wooden table, what remains
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Milagros Savage
ChemistryChemistry
Which of the following is the best description of covalent bonding? 1. Bonding that occurs between elements with similar electronegativities, and with transfer of electrons. 2. Bonding that occurs between elements with very different electronegativities, and with sharing of electrons. 3. Bonding that occurs between ions and elements, and with the sharing of electrons. 4. Bonding that occurs between elements with very different electronegativities, and with transfer of electrons. heileman 5. Bonding that occurs between elements with similar electronegativities, and with sharing of electrons.
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Harper Ellis
ChemistryChemistry
You are asked to smell a solution in a beaker. what is the best way of doing this?
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Ada Mccoy
ChemistryChemistry
The specific gravity of iron is 7.87, and the density of water at 4.00 ∘C is 1.00 g/cm3. You can use this information to find the density of iron. Find the volume occupied by 4.50 g of iron.
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Mollie Mcpherson
ChemistryChemistry
The volume of a gas is 93 ml when the temperature is 91? c. if the temperature is reduced to 0? c without changing the pressure, what is the new volume of the gas?
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Roger
ChemistryChemistry
15.434 g of kcl (m. m 74.55 g/mol) is dissolved in water up t a total volume of 500.0 mL. the density of this solution is 1.02 g/mL. what is the concentration of he solution in molality
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Reynaldo Kane
ChemistryChemistry
Determine the molar mass of an unknown monoprotic acid to two decimal places if 20.01 ml of a 0.098 m naoh solution were used to titrate 0.215 g of the unknown acid
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