Homework answers / question archive / chemistry-1 Final   Oxygen typically forms two bonds and has two lone pairs of electrons There is a single covalent bond between the sodium cation and bromide anion in NaBr Methane (CH?) and water (H?O) have different numbers of valence electrons A single ¹²C atom has a mass of exactly 12 grams Calcium bromide has the chemical formula Ca?Br Magnesium oxide has the chemical formula MgO  

chemistry-1 Final   Oxygen typically forms two bonds and has two lone pairs of electrons There is a single covalent bond between the sodium cation and bromide anion in NaBr Methane (CH?) and water (H?O) have different numbers of valence electrons A single ¹²C atom has a mass of exactly 12 grams Calcium bromide has the chemical formula Ca?Br Magnesium oxide has the chemical formula MgO  

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chemistry-1 Final
 

1. Oxygen typically forms two bonds and has two lone pairs of electrons
2. There is a single covalent bond between the sodium cation and bromide anion in NaBr
3. Methane (CH?) and water (H?O) have different numbers of valence electrons
4. A single ¹²C atom has a mass of exactly 12 grams
5. Calcium bromide has the chemical formula Ca?Br
6. Magnesium oxide has the chemical formula MgO