In questions 1 to 4, take the molar volume to be 24 dm3 (24 000 cm3) at rtp. 1 Calculate the amount in moles of each of the following:
a )2.4 dm3 of Oz at rtp
b )480 dm3 of He at rtp
c )100 cm3 of CO2 at rtp
d )1500 cm3 of N2 at rtp

Which of the following true? a_volcanoes and earthquakes often near the plate boundaries. b_volcanoes occur whereve there are tall mountains. c_earthquakes cause volcanoes in the same location to erupt violently d_volcanoes and earthquakes occur only where plates are colliding with each other

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?