What should you use to neutralise an acid spill?, a strong base solution, sodium hydrogen carbonate, only water, solid potassium hydroxide, In case of chemical eye contamination, you should:, administer eye drops., immediately apply a sterile dressing., flush your eyes with plenty of water for 15 minutes., wipe your eyes dry., If you accidentally swallow a diluted phosphoric acid solution, you should:, drink a sodium carbonate solution., immediately report the incident to the teacher and rinse your mouth with plenty of water., rinse your mouth with plenty of water., just continue with the exercises., If your clothing becomes contaminated:, rinse the clothing with water., remove the contaminated clothing and wash your skin with water; apply a dressing if necessary., wipe the clothing dry., apply detergent to the affected area., To separate immiscible liquids of different densities, use:, a beaker., a test tube., a conical flask., a separating funnel., The burette is used for:, dispensing solid substances., the precise measurement of the volume of liquid delivered., mixing aqueous solutions., carrying out chemical reactions on a small scale., The best way to heat solid substances to very high temperatures is:, placing the substance in a beaker and heating it on a hot plate., placing the substance in a test tube and heating it in a water bath., placing the substance in a crucible and heating it with a Bunsen burner., heating the substance placed in a conical flask in the flame of a gas burner., To safely move a heated crucible:, use rubber gloves., use tongs., do not move a heated crucible until it has cooled., use plastic handles., If you need to prepare exactly 250 mL of a solution, you can prepare it in:, a beaker., an Erlenmeyer flask., a volumetric flask., a graduated cylinder., When you need to dispense a very small amount of liquid, you should:, pour it straight from the flask or beaker., dispense it using a disposable pipette or an eyedropper., dispense it using a burette., pour it directly from its original container (e.g., a glass bottle).

Unit 1_POST-WATCHING

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