MIDTERM: Integrated Science

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What is an ionic bond?

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An ionic bond is a type of chemical bond that occurs when one atom transfers one or more of its electrons to another atom, resulting in the formation of ions that are held together by electrostatic forces.

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What is the first step in the scientific method?

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The first step in the scientific method is to ask a question or make an observation.

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What is nuclear fusion?

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Nuclear fusion is a reaction in which two light atomic nuclei combine to form a heavier nucleus, releasing a large amount of energy in the process.

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What are variables in an experiment?

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Variables are all factors that can change in an experiment, affecting the outcome of the experiment.

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What are valence electrons?

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Valence electrons are subatomic particles found in the outermost shell of an atom, responsible for the atom's reactivity.

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What is a chemical reaction?

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A chemical reaction is a process that involves the rearrangement of the molecular or ionic structure of a substance, resulting in the formation of new substances.

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What is the law of conservation of mass?

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The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

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What is a catalyst?

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A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process.

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What is the difference between exothermic and endothermic reactions?

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Exothermic reactions release energy, usually in the form of heat, while endothermic reactions absorb energy from their surroundings.

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What is a reactant?

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A reactant is a substance that undergoes a chemical change in a reaction, combining with other reactants to form products.