Physics, 22.11.2020 20:20, adriannacomrosenbark

Another pure substance, compounds contain atoms from two or more elements chemically bonded, When atoms bond, they cannot be separated physically. Compounds may have different properties than
the elements they're made of. Water, for example, is a compound formed from hydrogen and oxygen.
Water is a liquid at room temperature, while oxygen and hydrogen are both gases.
Which of the following best describes compounds?
A They can only be separated chemically.

B. They are always liquid at room
temperature.

C. They contain the atoms of just one element.

D. They have the same properties as their
elements.

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 00:30, sophiaa23

Next a skier is pulled by a tow rope up a frictionless ski slope that makes an angle of 15 with the horizontal. the rope moves parallel to the slope with a constant speed of 0.69 m/s. the force of the rope does 800 3 of work on the skier as the skier moves a distance of 8.4 m up the incline. (a) if the rope moved with a constant speed of 2.2 m/s how much work would the force of the rope do on the skier as the skler moved a distance of 8.4 m up the incline? at what rate is the force of the rope doing work on the skier when the rope moves with a speed of (b) 0.69 m/s and (c) 2.2 m/s?

Answers: 1

continue

Physics, 22.06.2019 03:30, 1074885

The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared

Answers: 1

continue

Physics, 22.06.2019 17:30, HernanJe6

Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.

Answers: 1

continue

Physics, 22.06.2019 18:10, coryowens44

Arefrigerator uses r-134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for the compression process. the refrigerant enters the evaporator at 120 kpa with a quality of 34 percent and leaves the compressor at 70°c. if the compressor consumes 450 w of power, determine (a) the mass flow rate of the refrigerant, (b) the condenser pressure, and (c) the cop of the refrigerator. (0.00644 kg/s, 800 kpa, 2.03)

Answers: 1

continue

Do you know the correct answer?

Another pure substance, compounds contain atoms from two or more elements chemically bonded, When a...