Metal lithium strontium calcium magnesium zinc copper barium manganese lead arsenic potassium sodium Flame color red-pink red-pink dark red-orange white-gray blue-green blue-green yellow-green yellow-green blue-purple blue-purple blue-purple yellow blue Answer Bank blue-purple red-pink blue-green white-gray gray-green dark red-orange yellow yellow-green

Q: A student created a model for the following balanced equation as shown below. What color or pattern…

A: Given Chemical Reaction :: Na2S + 2 HCl ---> 2 NaCl + H2S

Q: what is the chemical formula for potassium phosphate

A: Potassium phosphate is a common term for salts of potassium and phosphate ions.

Q: and bismuth ion lution

A:

Q: Describe the basic organizational feature of the periodic table of the element.

A: The Dimitri Mendeleev gave the modern law of periodic table, which states that the properties of the…

Q: Write correct ionic formulas for the following light emitting compounds by entering the number for…

A: Ionic compounds are formed by the transfer of electrons from cations to anions. Cations are…

Q: What THREE elements are rare-earth elements? calcium neodymium rhenium niobium samarium thallium…

A: In the above question the elements which are rare earth metal  among the option provided are…

Q: Identify 4 patterns and trends in the way the elements are arranged on the periodic table?

A: Patterns and trends in the properties of chemical elements that are revealed in the periodic table…

Q: Which of the following elements are metals? C Ca Br Co Ni Ar Li Al O ?

A: Metal are electropositive in nature  Metals are have less electronegativity  In periods from left to…

Q: 5. Using the periodic table, classify each of the following elements as a metal or a nonmetal, and…

A: a)The atomic number of Co is 27Electronic configuration of cobalt is Co: 1s22s22p63s23p64s23d7It can…

Q: Name one metalloid in period 4 and one non-metal in period 5:

A: The metalloid in period 4 is ,        Germanium  (Ge)       Arsenic (As)

Q: Specify the number of protons and electrons in each of the following ions. A) Se^2−, needed for…

A: To specify the number of protons and electrons we will use the following concept . Since we know…

Q: Part 2: Color land labell each section of the Representative Elements a unique shade. Color the…

A: Representative elements are main group elements. They are s-block and p-block elements. There are…

Q: Which of the following elements is a halogen? a) Sodium b) Carbon c) Fluorine d) Iron

A: As we know that, in the modern periodic table halogens are a group of elements belongs to the group…

Q: Give the formulas for the following compounds. sodium sulfide sodium nitrate mercury(II) iodide…

A:

Q: 2. Consider the following hypothetical results for an experiment like this one. Complete the table…

A: Metal or element which is more reactive than other element displace other element from its salt…

Q: 7 8 10 11 12 How many millilitres are in 100 liters? Express the answer in scientific notation. How…

A: According to the bartleby guidelines for sub-miltipart, I can solve only first three questions. So…

Q: Which of the following elements require Roman numerals when writing their ion names? Select all that…

A: Roman numerals are typically used when writing the ion names of transition metals, as well as some…

Q: Answer the questions below for the reaction of copper metal with silver nitrate: Cu(s) + 2AgNO3 (aq)…

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Q: 54. Refer to the periodic table and state the highest energy sub- level for each of the following…

A: Highest energy sub levels are in elements is where last electron is filled in element. Based on…

Q: Use the References to access important values if needed for this question. 1A 8A H 2A 3A 4A SA 6A 7A…

A: First box shows a electronic configuration of K(potassium). Second box shows the electronic…

Q: Question 18 Which group is sodium (Na) in? O alkaline earth metals O noble gases O halogens O alkali…

A: Sodium (Na) is present in the group 1, which is known as Alkali metals.

Q: Rank the masses of the elements from lightest to heaviest. To rank items as equivalent, overlap…

A: Atomic masses of the elements: B : 11 u Cr: 52 u Li: 7 u

Q: Which of the following elements is the largest?   a barium b titanium c rubidium d sodium

A: Atomic size decreases across a period from left to right, while increases down the group.

Q: These values may be useful for the following question(s). speed of light = 3.00 x 108 m/s The mass…

A: Binding energy is defined as a energy hold together nucleus.

Q: A shiny brown coloured element ‘X’ on heating in air becomes black in colour. Name the element ‘X’…

A: The required reaction is as follows:

Q: Questions: 1. Based on the electronegativity values, identify each of the following bonds as ionic,…

A: Based on the electronegativity values, identify each of the following bonds as ionic, polar…

Q: Write the molecular formula of acetic acid. The color codes for the ball-and-stick model shown are:…

A: Here, in the structure, black color shows carbon, blue red shows oxygen, and white shows hydrogen…

Q: Two different compounds are obtained by combining nitrogen with oxygen. The first compound results…

A: First we need to calculate the mass ratio of O to N in first and second compound by using the mass…

Q: compounds. Then, a major shift happened. How did chemists increase the rate of discovery of the…

A: Antoine Lavoisier first one who tried to group the elements as metals and nonmetals. Then Wolfang…

Q: Give the formulas of the following compounds: potassium permanganate strontium cyanide copper (I)…

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Q: TRUE for non-metal elements? Non-metals do not conduct electricity well Non-metals are represented…

A: Yes non metals do not conduct the electricity well as because they do not have/posses free electrons…

Q: Nickel Oxygen Barium Tin Hydrogen Oxygen Calcium Sulfur Iron Carbon

A: On the basis of Electronegativity difference we can classify different Molecules as ionic , non…

Q: Na Mg Al Si CI Ar 19 20 21 25 22 23 Ti 24 26 27 28 29 30 31 32 33 34 35 36 K Ca Sc V Cr Mn Fe Co Ni…

A: We have to find which among have the similar chemical properties

Q: What is the chemical formula for nickel (III ) oxide

A: Answer  What is the chemical formula for nickel (III ) oxide

Q: Calculate the amount of material remaining for each of the following substances.

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Q: Which of the following elements is not a representative element? O Nickel Cadmium Silicon O Barium

A: I A, IIA, IIIA, IV A, VA, VI A, VII A, VIII A elements are called representative elements. Between…

Q: Use the References to access important values if needed for this question. Fe forms two monatomic…

A: Note: As per our guidelines, we are supposed to answer only one question when multiple questions are…