Rulers follow the same precision rules as beakers and graduated cylinders. Answer the following using the
same logic that you used in question #6. If a ruler has
lines every 1 mm, you can measure to
precision. If a ruler has lines every 1 cm, you can
measure to
precision. If a ruler has lines
every 10 cm, you can measure to
precision. And if a ruler has lines every 1000 cm, you
can measure to
precision

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

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

Given the following reaction: c3h8+5o2=3co2+4h20 how many grams of co2 will be produced 7 g of c3h8 and 98 g of o2