What is the formula foe sodium bromide? SBr NaBr Na_2Br NaBrO NaBr_2 Active meta

Question

What is the formula foe sodium bromide? SBr NaBr Na_2Br NaBrO NaBr_2 Active metals often form a protective oxide surface film that prevents further reaction of the metal with oxygen in the air, Which one of the following formulas for the metal oxide is NOT correct? Al_2O_3 is aluminum oxide Fe_2O_3 is iron(III) oxide Na_2O is sodium oxide. MgO_2 is magnesium oxide. FeO is iron(II) oxide. Buffer solutions that maintain certain levels of pH or acidity are widely used in biochemical experiments. One common butter system uses sodium dihydrogenphosphate and sodium monohydrogenphosphate. What are the formulas of these two compounds? Na(HPO_4) and Na(HPO_4)_2 NaH_2PO_4 and Na_2HPO_4 NaPO_4 and NaHPO_4 NaPO_4 and NaHPO_4 Which of the following is the correct formula for hydroiodic acid? HIO HI HIO_3 H_2I HI_2 Aqua regia is a mixture of hydrochloric acid and nitric acid that is capable of dissolving gold. What are the formulas of these acids? HCIO_3 HNO_4 HCIO_4, . HNO_3 HCI, HNO_2 HCI, HNO_3 HCI, HNO Based on its Lewis dot structure and the octet rule, which of the following has the highest bonding capacity when paired with another nonmetal? F H O N C How many shared electrons are there in the Lewis structure of OF_2? 6 4 3 2 1

Explanation / Answer

1) option b) NaBr

2) option d) MgO2 Magnesium oxide

3) option b) NaH2PO4 and Na2HPO4

4) option b) HI = hydroiodic acid

5) option d) HCl , HNO3

6) option e) C can form 4 covalent bonds

7) option b) 6 shared electrons

8) option b) 4 shared electrons

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