wsfsdwq

2 Which of the following gives the formula for aluminum oxide? Group of answer choices AlO AlO2 Al2O Al3O2 Al2O3

PLS HELP ASAP ON ALL ASKED QUESTIONS PLS

Which is the correct formula for the compound made by Ca +2 and Cl -1 ?

What is the chemical formula for the compound commonly called ammonia? Question 1 options: a) KNO3 b) CaO c) MgSO4 d) NH3 Which of the following shows the chemical formula for the binary ionic compound calcium chloride? Question 2 options: a) CaCl2 b) Ca2Cl3 c) Ca2Cl d) CaCl H2O is the chemical formula for the compound with which common name? Question 3 options: a) water b) potash c) lime d) ammonia

Question 30 Which of the following is an ionic compound? A) H20 B ) CCI IA (c) CaCl2 D) SO2 E N204

Which of the following shows the chemical formula for the polyatomic ionic compound potassium sulfate? Question 4 options: a) K(SO4)2 b) K2SO4 c) KSO4 d) K2(SO4)2 What is the chemical name for the ionic compound, Pb(NO3)2? Question 5 options: a) lead nitrate(II) b) lead nitrate(IV) c) lead(IV) nitrate d) lead(II) nitrate Which of the following shows the chemical formula for the binary ionic compound sodium fluoride? Question 9 options: a) Na2F b) Na3F2 c) NaF d) NaF2

2) KClO3 is the correct formula of a) potassium chlorate b) potassium chloride c) potassium chlorite d) potassium hypochlorite

Question #3

Question 2 ( Magnesium sulfate heptahydrate is commonly known as Epsom salt. What is the empirical formula for magnesium sulfate? Mg2(SO4)2 O MgSO4 OM 92SO4 O MgSO 2 Question 34 The columns in periodic table are called groups. Some of the groups have names which are frequently used instead of numerical group names. Cl belongs to one of those named which is Alkali metals Alkaline earth metals Chalcogens Halogens Noble gases

What is wrong with the formula "HgCl" for mercury (I) chloride? Group of answer choices There is nothing wrong with this formula Mercury (I) must always be paired with another mercury (I) Mercury does not commonly exist in the +1 form The formula should be Hg2Cl Mercury never forms compounds with other elements; this shouldn't exist

one answer per row

Question 14 A) Which answer represents the correct chemical formulas for ammonium oxalate, calcium acetate,and magnesium sulfate heptahydrate. A. (NH4)2C2O4, Ca(CH3COO)2, MgSO4·6H2O B. NH4C2O4, Ca(CH3COO)2, MgSO3·6H2O C. (NH4)2C2O4, Ca(CH3COO)2, MgSO4·7H2O D. (NH4)2C2O4, CaCH3COO, MgSO4·6H2O E. NH4C2O4, CaCH3COO, MgSO4·7H2O   B) Cork has a density of about 0.60 g/cm3. Cork will partially float in water which has a densityof 1.0 g/cm3. If the piece of cork has a total volume of 5.0 cm3what volume of cork is BELOW thewater? A. 1.0 cm3 B. 1.5 cm3 C. 2.0 cm3 D. 2.5 cm3 E. 3.0 cm3   C) Let an n-protic acid be an acid that can donate n hydrogen ions and has the formula HnX. If 0.600 L of 0.400 M sodium hydroxide is required to titrate 0.400 L of a 0.300 M HnX to theequivalence point, what is n in HnX? A. 1 B. 2 C. 3 D. 4 E. 5

5) What is the name and symbol of an ion that has 26 protons and 23 electrons? A) Fe+3 B) Fe+2 C) Mn+2 D) Mn+3

(66) Writing lonic X G W Formulas of lonic X X Finding formula f X Introduction to io Question 36 of 43 Which is true about one formula unit of CaBr2? A) There is one 1 Ca atom and 1 Br2 molecule. B) There is one CaBr2 molecule. C) There is 1 Ca atom and 2 Br atoms. D) There is 1 positive Ca ion and 2 negative Br ions. E) There is 1 positive Ca ion and 1 negative Br ion.

TUTOR Classifying and Naming Compounds What is the name of the compound with the formula Co₂S3? What is the name of the compound with the formula O₂F2? What is the formula for chromium(III) acetate? What is the formula for nitrogen monoxide? [References]

All of the following are ionic compounds except __________. Group of answer choices Na2SO4 NaCl Li3N SiO2 K2O

question 6

27 i Need help please that’s urgent

An alkali metal forms a compound with chlorine with the formula __________. (The symbol M represents any one of the alkali metals.) Group of answer choices MCl2 M2Cl2 M2Cl MCl3 MCl

QUESTION 5 What is the correct name for Cu(NO3) O copper nitrate O copper (1) nitrate Ocopper (II) nitrate O dicopper monoxide