Answer the following statements true (T) or false (F)

1. Covalent bonds are generally less stable than ionic bonds.
2. Hydrogen bonds are comparatively strong bonds.
3. The fact that no chemical bonding occurs between the components of a mixture is the chief difference between mixtures and compounds.
4. Alpha particles, although relatively weak energy particles, are second only to smoking as a cause of lung cancer.
5. No chemical bonding occurs between the components of a mixture.


1. FALSE
2. FALSE
3. TRUE
4. TRUE
5. TRUE

Anatomy & Physiology

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What will be an ideal response?

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Which of the following statements about positive and negative lymphocyte selection is TRUE?

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Anatomy & Physiology

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Anatomy & Physiology