Which element has the greatest number of valence electrons?

A. Silicon

B. chlorine

C. sodium

D. magnesium

A drop of acetone (nail polish remover) has a mass of 35 mg and a density of 0.788 g/cm3. what is its volume in cubic centimeters?

Why are emperor penquins considered a species?

Why do forces always exist in pairs

A circuit has a current of 1.2 A. If the voltage decreases to one third of its original amount while the resistance remains constant, what will be the resulting current?

Which represents a balanced chemical equation? CO (2) + 2H (2) 0 → 2CH (4) + 20 (2) CH (4) + O (2) → CO (2) + H (2) O CH (4) + 20 (2) → CO (2) + 2H (2) O CO (2) + H (2) O → CH (4) + O (2)

The voltage across the primary winding is 350,000 V, and the voltage across the secondary winding is 17,500 V. If the secondary winding has 600 coils, how many coils are in the primary winding? 30 583 12000 332500

A 200 watt t. v. is used for 20 hours in a week. If it is used for four weeks then what is cost of electricity if rate is 5rs/kwh

In an experiment, the control is never changed by the scientist not important to the scientist not recorded by the scientist changed by the scientist

When you catch a baseball, what kind of work do you do, negative or positive? by catching the ball, what do you change? what energy does it gain or lose?

All describe work except A) a team of dogs dragging a sled B) a jokey sitting on a horse C) a bowler lifting a bowling ball