For resonance to occur, the object must experience a frequency equal to its what? natural frequency

wavelength

amplitude

period

What reaction is taking place? 02 + c3h8 = h20 + co2

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?