1 poin 9. In an experiment, the one variable that is changed on purpose by the
scientist is called the
controlled variable
experimental variable
independent variable
dependent variable

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

Select the correct answer from each drop-down menu. describe what happens to a carbon-11 atom when it undergoes positron emission. the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?