Which of the following is true about acids?

Most acids are sour

Most acids corrode metals

Every acid contains hydrogen

Acids have a pH of greater than 7

What is one reason why rock layers are not horizontal?

A 34.34 g sample of a substance is initially at 26.7 °C. After absorbing 2205 J of heat, the temperature of the substance is 152.1 °C. What is the specific heat (c) of the substance?

6 The band room at school has soundproof walls. These walls prevent sound from disturbing other students who are outside the band room in other classrooms. What happens to the sound in the band room when the students are practicing their music? O A.

What is a minerals cleavage?

Object dropped from height of 25 meters, what velocity will it hit the ground?

To verify that this expression for (vf) α has the correct units of velocity, you need to perform some unit analysis. begin by finding the equivalent of a volt in terms of basic si units.

Which of the following best describes transverse waves

What are the arrangement of resistors in series

A pilot flies horizontally at 1300 km/h, at height h! 35 m above initially level ground. However, at time t! 0, the pilot begins to fly over ground sloping upward at angle u! 4.3° (Fig. 2-38).

A helicopter flies 30 km 30 degrees north of east, drops of the supplies to a research team; it then heads 50 degrees north of west traveling 70 km to drop the supplies to a filming crew. What is the resultant displacement of the helicopter?