Which statements true about the total mass of the reactants during a chemical change? (5 points) 0
his destroyed during chemical reaction,
It is less than the total mass of the produce
It is equal to the total mass of the products,
is greater than the total mass of the products

Identify a specific example for each type of technology

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.

The excretory system,need answers for all: )