Aballoon contains 2500 ml of helium gas at 75 degrees celsius. what is the final volume in millimeters of gas when the temperature changes to each of the following, if n and p do not change?

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?