1.Which of the following elements do not belong to Group IIA elements? a. Be b. Ca c. K d. Ra 2.A compound of Calcium which is usually in infant’s formula to promote digestibility of milk? a. Precipitated chalk b. Lime water c. Purgative lemonade d.Slaked Lime 3.Which of the following statements is not true regarding Barium hydroxide? a.It is used as a diagnostic agent b. May cause constipation c.Toxic in nature

Q: 16.The atomic masses of * Cl (75.53 percent) and "Cl (24.47 percent) are 34.968 and 36. 956 a.m.u.,…

A: Introduction: Chlorine belongs to group 17 elements with atomic number 17 and mass 35.45 amu. Group…

Q: Which is not named correctly ? A. CuSO4 copper(II) sulfate B. CaF2 calcium fluoride C. Na3PO4 sodium…

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Q: 6. Which statement describes the atoms and mass in a chemical reaction? Oa. The mass and the number…

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Q: The ionized form of ferrous oxide is a. Fe*2: 02 O b. Fe*3: 0-2 O c. Fe*2: 03 o d. Fe*3, 03 +3.

A: In this question, we will see what is the ionized form of Ferrous Oxide  You can see details…

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A: Since we only answer up to 3 sub-parts, we will answer the first three only. Please resubmit the…

Q: 3) Show your calculations clearly. Suppose you are provided with a 36.55 g sample of potassium…

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Q: 1) For the given elements, place them in order of INCREASING ELECTRONEGATIVITY: -Mn, N, Ga, P 2)…

A: Electronegativity : N > P > Ga > Mn. N belongs to second period. Therefore more…

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Q: The mass spectrometer may be used to A. Electrolyze water B. Detect the presence of isotopes C.…

A: We need to find where mass spectrometry can be used.

Q: Which of the compounds is an ionic salt? A. CIO₂ B. CCIA C. NO₂ D AIP

A: Salt : A salt is formed by a reaction of acid and base (i.e. a salt is formed by the neutralisation…

Q: A. Br HBr (excess) پنی من من بنے Br B. Br Br Br Br + Br Br D. Br Br

A: Addition reaction of HBr to an alkyne

Q: 25 Which chemical formula is correct for Iron (III) Cyanide? C. Fe(CN)2 D. Fe₂(CN)3 A. FCCN3 B.…

A: Since you have asked a question with multiple sub-parts, as per our company guidelines we are…

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Q: 4. Suppose you have a mixture that weighs 6.00 g. In the mixture you 2.50 g of iron and 3.50 g of…

A: The total weight of mixture is 6.00 g. The mass of iron and sulfur present in mixture is 2.50 g and…

Q: 1. What does the average atomic mass of an element represent? What unit is used for average atomic…

A: We will answer the first question since the exact one wasnt specified.Please resubmit a new question…

Q: The base that used in preparing shaving creams is .? O a. Nacl а. O b. NH3 C. КОН O d. NAOH

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Q: 1 1 25 Which chemical formula is correct for Iron (III) Cyanide? C. Fe(CN)₂ D. Fe₂(CN), A. FeCN3 B.…

A: The Answer to the following question is- 25. Iron(III) cyanide means that iron exists as a ferric…

Q: 11. Given the reaction: Al+ He-X+n When the equation is correctly balances, the nucleus represented…

A: Hi, since you have posted multiple questions. We will answer the very first question for you. Kindly…

Q: An element consists of two isotopes and has an average atomic weight of 85.561 a.m.u. The abundance…

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Q: p. q. r. S. t. Cl₂ (excess) Br₂ 1. NaNH2 2. CH3 Br Cl₂ (excess) 1. NaNH2 2. Br

A: Alkyne is an electron riched system, hence addition reaction takes place.

Q: Consider these compounds: A. Cas B. Ag,Cro4 C. Fes D. Zn(OH)2 Complete the following statements by…

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Q: 3)b. FePO4*6 H2O d. CUCN f. CuSO4 * 5 H2O h. Sn(SO4)2 j. Mn(CH3CO2)2 1. Hg(NO3)2 * H2O n. CRSO4 *…

A: Chemical name  of following compounds

Q: ical formula of calcium calci III Balance the following equation by simple inspection each. 1. Mg +…

A: Since you have posted multiple question with multiple sub-parts, we are entitled to answer the first…

Q: Write the balanced chemical equation for the reaction between Magnesium and oxygen. Explain the…

A: Reaction between Magnesium and oxygen gives Magnesium Oxide Balanced Chemical equation For reaction…

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A: Aqueous solution of Mgcl2 and and aqueous solution of K3PO4 take  part in precipitation reaction.…

Q: 2. In what ways do chemists classify elements? How does the periodic table reflect these…

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Q: Which of the following is incorrect?   A. Fluorine will always have an oxidation number of -1 in all…

A: Given  1)   Which of the following is incorrect?   A. Fluorine will always have an oxidation…

Q: 30. In calcium carbonate what is the mass percentage of  oxygen atoms?    A. 68%   B. 12%   C.…

A: Calcium atomic mass = 40. Carbon atomic mass =12. Oxygen atomoic mass = 16. Here three oxygens are…

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Q: 1. Describe Joule's experiment and the conclusion he came up with as a result.

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Q: 4. chlorine dioxide a. CIO b. Cl2O c. CIO2 d. Cl202 5. dinitrogen trioxide c. NO d. NO3 a. N3O2 b.…

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Q: 1. Which statement best describes molar mass? a. the mass of 6.02 x 1023 atoms, which is constant…

A: Disclaimer:Since you have asked multiple questions, we will answer the first 2 questions for you. If…

Q: Electrons are _______ between atoms in ions, and electrons are _______ between atoms in molecules 

A: Electrons are transferred between atoms in ions electrons are shared between atoms in molecules.

Q: 6 What is the mass of 2.0 billion billion atoms of gold? (1 billion is 1 x 10^9, so a billion…

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