Explain why chlorine is a fairly reactive element while argon is not?

How much do a steel BB weight?

A concave mirror has a focal length of 11 cm. What is its radius of curvature?

List and describe the four phases of matter. Give a common example of each.

Is a stick living, non living or Dead?

A steel block has a volume of 0.08 m 3 and a density of 7,840 kg/m 3. What is the force of gravity acting on the block (weight) in water? A) 6,700.56 N B) 6,150.64 N C) 7,600.18 N D) 5,362.56 N

While a roofer is working on a roof that slants at 39.0 degrees above the horizontal, he accidentally nudges his 88.0 N toolbox, causing it to start sliding downward, starting from rest. If it starts 4.

Suppose that the centripetal force acting on an object in circular motion were doubled to a new value, and the object remained in a circular path with the same radius. How would the motion be affected?

2. Air at a temperature of 20 ºC passes through a pipe with a constant velocity of 40 m/s. The pipe goes through a heat exchanger in which hot gases outside the pipe heat up the air to 820 ºC.

What is the thermometer

In which natural cycle must an important gas in Earth's atmosphere be fixed before plants can use it? a. sulfur cycle b. carbon cycle c. nitrogen cycle d. oxygen cycle