Question

Identify each statement as true or false. If a student needs to heat things over 100 °C, then a heating mantle should be used. Magnetic stirrers provide sufficient agitation to prevent bumping. Never drop a magnetic stir bar into a flask. Instead, tip the flask sideways and slide the stir bar in. Heating mantles should be plugged directly into an alternating current outlet. For maximum agitation potential, use stir bars and boiling chips together

Answer 1

check the explanations

Step-by-step explanation:

a) It is False. you can heat a substance with a heating mantle but also with a bunsen burner or a heating plate.

b) It is true. Magnetic stirrers prevent that a liquid can bump or avoid an eruption.

c) Is is true. To put a magnetic bar inside a container, specially a glass one, is recommended to tip the flask sideways. Otherwise you can break the glass container, one wall or the basement.

d) It is false. The heating mantle you need to connect to a grounded variable voltage transformer.

e) It is false. When you are heating and mixing at the same time the magnetic stirrers are the best and they work by their own, without the help of other boiling chips, also if they are together, an eruption will result.