Chemistry » Page 25

Chemistry

Kamryn Avery

When DNA is condensing into a chromosome, what protein is it wrapped around?

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Chemistry

Yamilet Shaw

How does tye transfer of energy affect physical and chemical properties of matter

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Chemistry

Jaliyah Barrera

According to valence bond theory, which kind of orbitals overlap to form the p-cl bonds in pcl5?

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Chemistry

Guest

Ionic bonds are strong; therefore, ionic compounds

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Chemistry

Jefferson Fields

A cells that carry information through tour nervous system

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Chemistry

Coby Dunlap

True or False: According to the present atomic theory, the location of an electron in an atom is best represented by a probability cloud.

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Chemistry

Donavan Torres

How can we measure the density of different wooden objects

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Chemistry

Dean Werner

According to molecular orbital theory, all diatomic molecules with an even number of electrons will be diamagnetic. True or False?

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Chemistry

Steven

Which of the following equilibria would be impacted by a change in pressure? Select the correct answer below:

H2 (g) + I2 (g) →2HI (g)

NO (g) + O3 (g) →NO2 (g) + O2 (g)

2SO3 (g) →2SO2 (g) + O2 (g)

CO (g) + H2O (g) →CO2 (g) + H2

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Chemistry

Jimmy Barry

A common stain remover is sold in concentrated form as 3M sodium hypochlorite (NaOCl). You need to create 400 milliliters of a 0.5M solution of sodium hypochlorite to fill a spray bottle. What volume of 3M sodium hypochlorite is needed?

15.0 mL

66.7 mL

133 mL

167 mL

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Chemistry

Alanna Nelson

A chemical reaction that takes in heat is called: exothermic endothermic a phase change

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Chemistry

Karson Henson

Which of the following lines (of latitude or longitude) would represent by 180 longitude?

South Pole

Equator

Prime meridian

North Pole

International date line

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Chemistry

Rumplestiltskin

63Ni decays by a first-order process via the emission of a beta particle. The 63Ni isotope has a half-life of 100. years. How long will it take for 65% of the nickel to undergo decay?

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Chemistry

Addisyn Carter

Based on the standard free energies of formation, which of the following reactions represent a feasible way to synthesize the product? A. 2C (s) + H2 (g) →C2H2 (g); ΔG∘f=209.2 kJ/molB. N2 (g) + 3H2 (g) →2NH3 (g); ΔG∘f=-33.30 kJ/molC. 2C (s) + 2H2 (g) →C2H4 (g); ΔG∘f=68.20 kJ/molD. 2SO (g) + O2 (g) →2SO2 (g); ΔG∘f=-600.4 kJ/mol

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Chemistry

Madilynn Rocha

How do I find the molar mass of Copper (II) Nitrate?

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