Chemistry » Page 56

Chemistry

Delilah Tyler

Describe the motion of molecules in an ice cube an in a radiator in winter

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Chemistry

Chic

True or False.

Heat is always transferred from warmer objects to cooler objects.

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Chemistry

Cuddle Pig

Which of the following statements is true? Question 5 options: Nuclear decay rates vary with the conditions of the reaction, but chemical reaction rates do not. Neither chemical reaction rates nor nuclear decay rates vary with the conditions of the reaction. Both chemical reaction rates and nuclear decay rates vary with the conditions of the reaction. Chemical reaction rates vary with the conditions of the reaction, but nuclear decay rates do not

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Chemistry

Lina Gordon

In which group is an element that has an outer-level electron configuration consisting of one electron in the nd orbital and two electrons in the ns orbital?

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Chemistry

Rory Bowman

List two non-SI units for volume, and explain how they relate to the cubic centimeter.

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Chemistry

Sonny Shepard

G which atomic orbitals overlap to form the carbon-carbon σ bonding molecular orbital of acetylene, c2h2?

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Chemistry

Kaitlynn Jacobs

Where did the earth hold most of its original water

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Chemistry

Dulce Schultz

Giovanni created this chart to study for an exam.

A 2-column table titled common ionic compounds. The first column labeled compound has entries sodium hydroxide (N a O H), iron oxide (F e O), calcium chloride (C a C l subscript 2), calcium carbonate (C a C O subscript 3). The second column has entries plastics, soap, and paper production; toothpastes and antacids snow removal; dark pigments in makeup.

Which best describes how to correct the error in the chart?

Remove "plastics" from the uses for sodium hydroxide.

Swap the uses for iron oxide and calcium carbonate.

Change the use for calcium chloride to "used in preservatives."

Add "de-ice roads" to uses for calcium carbonate.

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Chemistry

Judah Neal

Consider the two electron arrangements for neutral atoms A and B. What is the difference between atom A and atom B?

A - 1s22s22p63s1

B - 1s22s22p65s1

Atom B has lost some inner electrons. The outer electron of atom B has moved to a lower energy state. The outer electron of atom B has moved to a higher energy state.

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Chemistry

Allan Kirk

Choose all the answers that apply. Which of the following has kinetic energy? rolling ball, moving car, book on a table, spinning top, or a falling tree.

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Chemistry

Anya Arroyo

Which of the following statements about the suns feature is true?

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Chemistry

Saul Gaines

Preteins vary widely in structure, whereas nucleic acids have rather uniform structures. How do you account for this major difference?

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Chemistry

Ariella

Convert the pressure 0.840 atm to mm Hg

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Chemistry

Jasiah

What is the temperature in Celsius of 308 K?

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Chemistry

Guest

Why does metal need to be extracted from an ore before it can be used?

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