1 7-Zip-Right-click on the file or folder you want to compress and select 7-Zip â Add to archive. 2  In the Add to Archive menu, you can set your compression options. 3  Note that increasing compression levels can significantly increase the time it takes to compress. 7-Zip-Right-click on the file or folder you want to compress and select 7-Zip â Add to archive. 2  In the Add to Archive menu, you can set your compression options. 3  Note that increasing compression levels can significantly increase the time it takes to compress.
Endothermic reactions are the opposite. The new bonds require more energy. This comes from heating the substances, or sometimes, comes from the surrounding environment. Absorbing heat energy from the environment makes everything decrease in temperature so the reaction 'feels' cooler.
Answer:   An endothermic reaction is a chemical reaction in which energy (heat, light, etc.) is absorbed instead of released as in a exothermic reaction.xothermic reactions give out energy overall. Here are some exothermic reactions: - Combustion of fuels such as hydrogen & methane-Neutralisation of an acid by an alkali-Rea â¦ ction between sulphur & iron Endothermic reactions take in energy overall.