An element has atomic number 21 and atomic mass 44.95592 identify the incorrect statement regarding how to interpret and use this information A. The atom must have 21 protons
B. The atomic mass of 44.95592 is created by the sum of protons and neutrons
C. An individual Adam of this element would have 21 neutrons
D. In neutral atom of this element has 21 electrons
E. An individual item of this element would likely have an actual mass of 45

Four different thermometers were used to measure the temperature of a sample of pure boiling water. the measurements are recorded in the table below. thermometer temperature reading 1 temperature reading 2 temperature reading 3 w 100.1°c 99.9°c 96.9°c x 100.4°c 102.3°c 101.4°c y 90.0°c 95.2°c 98.6°c z 90.8°c 90.6°c 90.7°c the actual boiling point of pure water is 100.0°c. what can be concluded from the data about the reliability and validity of the thermometers?

According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?

The function of the ciliary escalator is to