What is one characteristic of a sample of matter that indicates it is a pure substance?

Give the name and formula of the compound formed when a Mn2 + cation combines with a (PO4) 3 - anion. A. Manganese phosphate: Mn3 (PO4) 2 B. Magnesium phosphate: Mn2 (PO4) 3 C. Manganese sulfate: Mn2 (PO4) 3 D. Magnesium sulfate: Mn3 (PO4) 2 E.

Where in the motion is the magnitude of the force from the spring on the object zero? Where in the motion is the magnitude of the force from the spring on the object a maximum? Where in the motion is the magnitude of the net force on the object zero?

If an astronaut takes an object to the moon the following is true (choose only one). A the mass will change but the weight will be the same. B both the mass and the weight of the object will be the same.

When work is done by a system and no heat is added, the temperature of the system?

In his famous experiment, Rutherford fired alpha particles at a thin gold film. Most of the alpha particles went through the firm and a very few bounced back.

A box has 1000N of force. It has an acceleration of 10 m/s/s. What is the mass of the box?

What type of energy is formed when chemical bonds are broken? A. Chemical energy B. Thermal energy C. Radiant energy D. Light energy

The liquid contained in batteries that conducts electric charge is called the: solution, electrolyte, suspension, colloid

Someone jumped from a high altitude at 31,000m above the earth. he freefalled for 4 min and 36 secs with top speed of 988 mph

What does the law of reflection mean?