Factory Promotional big recharged hot water bag Export to Burundi
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Sticking for the perception of "Creating goods of high quality and making good friends with people today from all around the world", we constantly set the interest of shoppers to begin with for Factory Promotional big recharged hot water bag Export to Burundi, The product will supply to all over the world, such as: Chile , Iraq , America , Corporate goal: Customers' satisfaction is our goal, and sincerely hope to establish long-terms stable cooperative relations with customers to jointly develop the market. Building brilliant tomorrow together!Our company regards "reasonable prices, efficient production time and good after-sales service" as our tenet. We hope to cooperate with more customers for mutual development and benefits. We welcome potential buyers to contact us.
This demonstration mixes two solids which react endothermically, taking in enough heat to freeze a wet block of wood to the flask. The chemicals used for this reaction are barium hydroxide octahydrate [Ba(OH)2 8H2O] and ammonium nitrate [(NH4)(NO3)] , and when they react they take in heat energy (which is what freezes the water) and form water and dissolve each other.