Mr. Holmes sure likes to play with Legos now that he is staying home these days. He was thinking that nuclear reactions were just like playing with lego pieces. Here are his three ideas why legos are like nuclear reactions. 1. If he builds a project that is too big, it will fall apart on its own because the connections are not strong enough to hold the pieces together.

2. Putting smaller lego pieces together to create bigger objects provides Mr. Holmes lots and lots of energy. He could keep doing this for a very long time.

3. While it causes a mess, Mr. Holmes gains energy by taking large objects and smashing them into smaller objects. While this is fun, it only lasts a limited time, because the large objects to smash are pretty scarce.

Which of the following reactions nuclear reactions is Mr. Holmes thinking of in this scenario?

Question 21 options:

1 – Fission 2 – Fusion 3-Radioactive Decay

1 – Radioactive Decay 2 – Fission 3 – Fusion

1 – Fusion 2 – Radioactive Decay 3- Fission

1 – Radioactive Decay 2- Fusion 3 – Fission

Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?

Explain why pure hydrogen cyanide does not conduct electricity, but become a conductor when it is dissolved in water? (at room temp, pure hcn exists as a volatile liquid)

Many reactions take place in aqueous solution. when potential reactants are mixed, a reaction will occur if there is some driving force that favors the formation of products. it is often convenient to categorize reactions in terms of these driving forces: precipitate formation, in which an insoluble solid is formed, weak electrolyte formation, as in a neutralization reaction involving water, or transfer of electrons, as in a redox reaction. these reactions can be represented by full molecular equations, which contain all species in the reaction mixture, or by net ionic equations, which show only the species that actually undergo a change. the latter does not contain the spectator ions, which do not undergo a net change or do not take part in the reaction. part a when the following two solutions are mixed: k2co3(aq)+fe(no3)3(aq) the mixture contains the ions listed below. sort these species into spectator ions and ions that react. drag the appropriate items to their respective bins. view available hint(s) spectator ions ions that react part b what is the correct net ionic equation, including all coefficients, charges, and phases, for the following set of reactants? assume that the contribution of protons from h2so4 is near 100 %.ba(oh)2(aq)+h2so4(aq)→ express your answer as a chemical equation. view available hint(s) nothing provide feedback