Predict how many paper clips a 7.5 V battery would pick up for both the 25- coll electromagnet and the 50-coll electromagnet.
per clips
a 7.5 V battery woua pick up for both the 25-

Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3

Why are enzymes important to cells? they bring about chemical reactions. they provide structural support. they form the two layers of membranes. they store large quantities of energy.

Which of the following are in a chemical family a. ca, sc, k b. cu, ag, au c. so, ge, sb