4. conclude Coach Reuter puts you in charge of making sure the soccer balls are at the right pressure for the big away game tomorrow. She thinks
checking them now might save you some time in the morning. Make a
recommendation about when you would check the pressure. Explain your reasoning.

Asolution at 25 degrees celsius is 1.0 × 10–5 m h3o+. what is the concentration of oh– in this solution?

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size