Claim: Reactivity of alkali metals increase down a group, or column, in the periodic table. Evidence: What are some pieces of evidence that reactivity increase? What signs of a chemical reaction taking place tell us reactivity increases down Group 1?

Q: C Metallic Tanta C The Substance C The Substance C The Substance C Which Of The C Get Homewor O 8…

A: PNI2 is made of phosphorus nitrogen, iodide compound.

Q: Plot the melting temperatures of elements in the 4A to 8–10 columns of the periodic table versus…

A: Explanation Melting Point Trends in periodic table The melting points is the amount of energy…

Q: An element reacts with oxygen to give a compound with a high melting point. This compound is also…

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Q: Reasoning: Why does reactivity increase down Group 1? Answer the following questions to help you as…

A: The periodic properties defines the atomic properties like atomic radius, reactivity order, nuclear…

Q: MCQ 174: Which statement is correct about Group-II metals who have attraction of high nuclear…

A: The group (II) metals are called  alkaline earth metals  , they are : Magnesium Barium Stontium…

Q: Name the three possible oxides which form with alkali metals and alkaline earth metals. Name one…

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Q: Carbon is used in countless ways in a modern automobile, with the most visible use being carbon…

A: Carbon fiber

Q: (ii) In Complete the table below giving the formulae of the oxides of the elements Element Li Be в C…

A: The question is based on the concept of periodic  properties of elements. we have to write formula…

Q: Discuss similarities and differences in structure, availability, and properties of the two groups…

A: Differences  Alkali metal are group 1 elements  . It contains   Hydrogen  ,Lithium, sodium…

Q: Complete and balance the following:(a) As(s) +excess O₂(g)→ (b) Bi(s) excess +F₂(g) →(c)…

A: The balanced equation is an equation representing a chemical reaction, which has the balanced mass…

Q: Select True or False: Of the three oxides SiO 2, MgO, and P 4O 10, the most acidic oxide is P 4O 10.…

A: The oxides given are SiO2, MgO and P4O10.

Q: Consider the following three statements about the reactivityof an alkali metal M with oxygen gas:(i)…

A: Given statements,    (i) Based on their positions in the periodic table, the expected product is the…

Q: MCQ 179: The temperature at which thermal decomposition of metal nitrates (eg. Ca(NO)) of Group-Il…

A: Group II metals are called as alkaline earth metals. They form metal nitrate ( e.g. Ca(NO3)2.All the…

Q: Reactivity towards water as you move down the alkali metals group. A) decreases B) does not change…

A: Option C is correct.

Q: 16. All alkaline earth metals have valence electrons in the p-block of the periodic table. True…

A: Note: According to our guidelines we are supposed to answer only one question.  Kindly repost other…

Q: Metal oxides form a basic substance with water.   a. True b. False

A: Metal oxides form a basic substance with water ---> True

Q: eglell 21 The least basic oxide of Pb0 and PbO2 is the one of lower oxidation state TA F b

A: Proclamation - 1 : PbO2 is an oxidizing specialist and decreased to PbO.  Pb(IV) in PbO2 acquires…

Q: Question No. 5 How many of the given oxides show acidic property? Na20, K20, SO2, SO3, CO2, ZnO,…

A: Answer -- 1) The oxide that can combine with water to produce Acid are called acidic oxide. 2) The…

Q: Which group of metals are the most reactive? Group of answer choices A. alkaline earth B. transition…

A: Given group of metals A. alkaline earth B. transition C. alkali   group of metals are the most…

Q: 1.Does O3+2H++2e-> O2+2H2O release more heat in comparison to O2+4H++4e-> 2H2O. Explain in great…

A: #1:  The standard reduction potential for the two reduction half-reactions are: O3(g) + 2H+ + 2e-…

Q: How do the acidities of the aqueous solutions of the alkaline earth metal ions change in going down…

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Q: Using Werner’s definition of valence, which property is the same as oxidation number, primary…

A: The important postulates of Werner’s theory are:The central metal or the metal atoms in coordination…

Q: Question No. 5 How many of the given oxides show acidic property? Na20, K20, SO2, SO3, CO2, Zn0,…

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Q: 7.9 Which of the following oxides are likely to be acidic, basic or amphoteric in aqueous solution:…

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Q: MCQ 168: Nitrates (-NO) of Group-II down the group require for their decomposition, is high in A.…

A: A) pressure   B) TEMPERATURE  C) ELECTRICITY  D) ALTITUDE

Q: 5. Why do alkaline-earth metals as a group have higher densities than alkali metals? 6. Name the…

A: General

Q: Vanadium is a highly toxic metal, and vanadium compounds are potent poisons. What do you think is…

A: The sources of vanadium uptake for humans are foodstuffs like soya beans, buckwheat, olive oil,…

Q: How is it possible stabilize hypochlorous acid, and is concentrated hypochlorous acid harmful to…

A: Hypochlorous acid (HOCl) is a weak acid, the chlorine atom is in +3 oxidation state in this acid.…

Q: Account for the following: (i) Ammonia is more basic than phosphine. (ii) Elements of Group 16…

A: i) Central atom in ammonia is nitrogen and central atom in phosphine is phosphorus. Nitrogen and…

Q: Which of the following statement(s)is/are correct concerning Group 17(Group VII) elements? They will…

A: The elements present in Group 17 (Group VII) are F2 - Fluorine Cl2 - Chlorine Br2 - Bromine I2 -…

Q: 26. Which of the following oxides is amphoteric in character? (a) CO2 (b) SiO2 (c) SnOz2 (d) Ca0

A: Amphoteric oxides are the oxides which can react both with acid as well as the base to produce salt…

Q: Give two gases required in the Haber process for the manufacture of ammonia.

A: As you have posted multiple independent questions, we will solve the first question for you. To get…

Q: 32 Which of the carbonates below are NOT decomposed by heat? LiCO and NazCO: CACO, and LICO: CACO,…

A: For question 32; Sodium Carbonate and Potassium Carbonate are thermally stable compounds so they do…

Q: What is the symbol of an element that has a half-filled 4p level O 1) Te 2) As O 3) Sb 4) P 1 Group…

A:

Q: How do metals react in a group?

A: We classify Group 1 and 2 as metals in the periodic table. Group 1 and Group 2 elements are known as…

Q: Alkali metals and their oxides react with water to form very basic solutions. true or false

A: Metal oxide are crystalline solid that contains metal cation and oxide anion.

Q: Metal oxides form acids with water.  a. True b. False   Metals react with halides to form salts.…

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Q: Which of the following statements is incorrect? a. Metals react with oxygen in the air to metal…

A: Identifying the the incorrect statement: a) Metals react with oxygen in the air to metal oxide.…

Q: Alkali metals react with water vigorously to form hydroxides and dihydrogen.Which of the following…

A: The alkali metal which react least vigorously with water should be Lithium because it is the least…

Q: 1.Which of the following is the principal combustion product of Na metal? a.NaO2 b.Na2O2 c.Na2O…

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Q: Which set contains an acidic oxide, an amphoteric oxide, and a basic oxide, arranged in that order.…

A: Acidic oxides are oxides that dissolves in water to form acids Basic oxide are oxide that reacts…

Q: Which of the following group 14 elements has lowest tendency to catenation? Select one: a. Lead b.…

A: Since you have posted multiple questions, we will solve only first question for you. If you want the…

Q: tle Chemical Indicators. A picture of a chemical dicator. A chart listing atleast 3 different…

A: Chemical indicators are the substance which  are  used to identify acids and bases

Q: Alkaline earth metals are involved in two key diagonal rela-tionships in the periodic table. (a)…

A: (a) Two alkaline earth metals; Be and Mg exhibits diagonal relationship. The pair of elements are…

Q: Reasoning: Why does reactivity increase down Group 1? Answer the following questions to help you as…

A: The electrons, protons, and neutrons are the basic constituents of an atom. They help in determining…

Q: MCQ 45: As the metallie radii increases in Group-II, the melting point A. increases B. decreases C.…

A: The atomic radii of atoms tend to increase from one row to the next but decrease across the length…

Q: Many lithium salts are hygroscopic (absorb water), whereas the corresponding salts of the other…

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