Which of the following is an example of how chemicals can help the
environment?

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

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

Convert the temperature of dry ice, –77 ∞c, into degrees fahrenheit and kelvin.