What happens after a chemical change?

The vertical columns on a periodic table are known as the periods and the horizontal rows are known as groups. True False

What is the weight of a ring tailed lemur that has a mass of 10 kg? Use w = mg (g = - 9.8 m/s^2) A: 98 oz B: 1.02 N C: 98 N D: None of these

A quarterback throws a football with angle of elevation 40degrees and speed 60ft/s. Find the horizontal and vertical components of the velocity vector

Electromagnetic waves with a short wavelength occur at a (blank) frequency and are (blank) energetic. A. high; less B. high; more C. low; more D. low; less

Element x has five valence neutrons, element y has one valence electron and element z has one valence electron. which two of these elements are most likely to have similar properties

A. A PH202 student lives next to a construction site and sees a crane with a wrecking ball demolish the building next door. The wrecking ball swings along the wall between her house and the neighbor's house.

Sometimes when you are training for event you may notice a decrease in improvement in level out of performance true or false

Two sailboats leave a harbor in the bahamas at the same time. the first sails at 23 mph in a direction 330°. the second sails at 34 mph in a direction 190°.

What conclusion can be drawn from the statement that an element has high electron affinity, high electronegativity, and a high ionization energy? A) The element is most likely from Group 1A or 2A and in period 1 or 2.

When a cyclist rides past you on the street, this is an example of