Which characteristic is unique to archaebacteria?

They are prokaryotic with no nucleus.

They are single-celled organisms.

They can live in extreme environments.

They are the only bacteria that cause illness.

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The opening of which of the following types of ion channels will lead to a depolarization? A chemically gated sodium channel 2) a voltage gated sodium channel 3) A mechanically gated sodium channel 4) All of them

What are the mass reactants and mass products for: TiCI + Mg = MgCI2 + Ti

Why do neither liquids or gases have permanent shapes?

If 23.4 grams of hydrogen gas were produced by the reaction below, how many grams of aluminum chloride were produced?

When the products of a reaction are hotter than the reactants: The reaction is exothermic. The reaction is endothermic. The reactants lost internal energy. The change in enthalpy is positive.

What is the [H3O+] of a solution with a pH of 2.56? 2.56 M, 2.75 x 10-3 M, 363 M, or - 0.408 M

What is the law of conservation of energy? A) energy can only be destroyed B) energy will always be renewed. C) energy cannot be created of destroyed. D) energy can never change forms.

Most metals are solid at room temperature, malleable, ductile, good conductors of heat and electricity, and react in acids to produce hydrogen gas. which of the properties mentioned is a chemical property? a. are malleable b. reacts with acids c.

Silver tarnishes when it comes into contact with hydrogen sulfide in the air. physical property or chemical property

When a volcanic irruption adds new rock to existing land and forms new islands is it considered destructive?