Potassium Permanganate is used for purifying drinking water, because

A. it is a sterilising agent

B. it dissolves the impurities of water

C. it is a reducing agent

D. it is an oxidising agent

Use the information in the following chart to answer the question below. Substance Density (g/cm³) aluminum 2.7 iron 7.9 gold 19.3 You just found a metallic object in a creek bed. You have found its mass to be 96.5 g, and it displaces 5 mL of water.

What are thw three premises behind the kinetic therory of heat?

Because persuasion is such a complex process, juggling statistics and quoting out of context to maximize your persuasive effect are ethically acceptable in speeches to persuade it is true or false and hearing is a physiological process, while

A solenoid field is: Increased with an increased current flow Entirely within the coil Located outside the coil only Never zero

Which of these is an example of a physical change? Question 5 options: grinding pepper baking a cake lighting up a grill toasting bread

A starship passes Earth at 80% of the speed of light and sends a drone ship forward at half the speed of light rela - tive to itself. Show that the drone travels at 93% of the speed of light relative to Earth.

Rubies are used in electronics

Two kids are on a merry-go-round that is turning at a constant rate. ariel is near the outer edge, and bob is closer to the center. ariel has answer (smaller, the same, or greater angular speed?

Visit this website and locate the element mercury, whose chemical symbol is Hg. Click on the square to read about the history, properties, and uses of mercury. Name three uses for mercury.

Ten seconds after starting from rest, a car is moving at 40 m/s. what is the car's acceleration in meters per second per second?