How many times is co2 denser than h2?
a 22 times
b 1.96 times
c 0.089
d they have the same density because they are both gases
e cannot be calculated

True or false, the three major scales used to measure earthquakes are mercalli scale, richter scale and magnitude scale

When curium-242 is bombarded with an alpha particle, two products are formed, one of which is a nudge on. what is the other product

A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?