A car covers a distance of 112.6 km in 1.8 h. Calculate its speed in meters per second.

What element must combine with the metal for oxidation to take place?

25.00cm3 of 0.100m NaOH is needed to titrate 25.00cm3 of a solution of hydrochloric acid, calculate the concentration of the acid

How many valence electrons are there in silicon, which has an atomic number of 14? a. 2 b. 4 c. 6 d. 8

Two spheres are placed so that their centers are 2.6 m apart. The force between the two spheres is 2.70 ✕ 10-12 N. What is the mass of each sphere if one sphere is twice the mass of the other sphere?

Would 4-bromoacetanilide or 4-bromo-2-chloroacetanilide be more reactive toward electrophilic substitution? explain.

c. When we heat water up by the Bunsen burner, what temperature is the boiling water? After 10 minutes

Assuming that air contains 78 percent N2, 21 percent O2 and 1 percent Ar, all by volume. How many molecules of each type of gas are present in 1.0 L of air at STP?

Two children are playing tag. Child A who is doing the chasing can run 100m in 24 seconds Child B is running away from child A and can run 64m in 21 seconds.

What ion does a base increase

What is the definition of Amplitude?