What type of reaction is 2Na+2H2O?2NaOH+H2+heat

Which of the following states of matter has no definite shape but does have a fix volume

What is the speed of a wave that has a frequency of 175 to the nearest whole number

An overnight rainstorm has caused a major roadblock. Three massive rocks of mass m1=584 kg, m2=838 kg, and m3=322 kg have blocked a busy road. The rocks are lined up from left to right in the order m1, m2, and m3.

The force of gravity between two odjects depends on

How would Earth's water cycle be affected if a significant percentage of the sun's rays were blocked by dust or other contaminants in the atmosphere?

Birds, squirrels, and chipmunks all living in the same tree, using the same resources, are an example of:

Does air resistence decrease with speed

In one area, the lowest angle of elevation of the sun in winter is 23 ° 18 '. Find the minimum distance, x, that a plant needing full sun can be placed from a fence 4.63 ft high.

A wave has a wavelength of 50 m and a speed of 200 m/s. What is the frequency of this wave in hertz?

A 75.0 kg person stands on a scale in an elevator. (a) What does the scale read (in N and in kg) when the elevator is at rest?