Density is a chemical property of a substance.

T

True

F

False

How does u-235 become u-236?

The three major scales used to measure earthquakes are Mercalli Scale, Richter Scale and Magnitude Scale.

Jane starts from her house to take a stroll in her neighborhood. After walking for 2 hours at a steady pace, she has walked 4 miles and is 2 miles from home. For this time, what was her speed? A. 4 mph B. 3 mph C. 2 mph D. 1mph

Culture is represented by groups that are characterized by shared attitudes, values, goals, and practices.

Does the eruption in the video constitute a pyroclastic flow

Which type of environment results from an equal amount of solute and solvent in and out of the cell? A. hypertonic environment B. isotonic environment C. hypotonic environment D.

If a 75 W lightbulb operates at a voltage of 120 V, what is the current in the bulb?* A. 1.6A B. 9000 A C. 195 A D. 0.63 A

A resistor and a capacitor are connected in series across an ideal battery having a constant voltage across its terminals. Long after contact is made with the battery (a) the voltage across the capacitor is A) equal to the battery's terminal voltage.

A beam of electrons with a speed of is incident on a slit of width 200. nm. The distance to the detector plane is chosen such that the distance between the central maximum of the diffraction pattern and the first diffraction minimum is 0.300 cm.

Which element has the greatest number of valence electrons? O A. Phosphorus (P) OB. Oxygen (0) O C. Sodium (Na) O D. Magnesium (Mg)