How does a PH probe work?

What is the the value of Lim h (x)

When investigating the heat of combustion, a student found that 10.0 g of water warmed from 10.0°C to 20.0°C above the flame of a fuel being burned. What energy was absorbed by the water? A. 100 J B. 150 J C. 210 J D. 419 J

State two characteristics shared by elements of the same group in the periodic table

Adding heat to a liquid causes which of the following physical changes? A. increases mass B. increases density C. decreases density D. no physical change

The speed of sound is 330 m/s and the wavelength of a particular sound wave is 33 meters. Calculate the period of this wave.

Inductors in parallel. Two inductors L1 = 1.31 H and L2 = 2.24 H are connected in parallel and separated by a large distance so that the magnetic field of one cannot affect the other. (a) Calculate the equivalent inductance.

The amplitude of an oscillator decreases to 36.7% of its initial value in 29.5 s. part a what is the value of the time constant

Which is a derived unit? A Meter B Second C Kilogram D Newton

What is the period of vibration for a wave with a frequency of 150 hertz?

What direction do s waves move in