7. Write equations for the formation of these compounds from the elements: a. Strontium Hydride b. Radium peroxide c. Cesium superoxide

Q: 17. Which of the following pairs of oxides will react with both dilute acid and alkali to form…

A: This is an acid base reaction

Q: 25) Which nonradioactive group I metal would be the most reactive in water and why? A) Cesium would…

A: 25) Cesium belongs to group I of the periodic table having only one electron in the outermost shell.…

Q: 24. Three oxides have the structures: giant molecular, intermediate between giant molecular and…

A: Structure of SiO2 is giant molecular structure.  Structure of CO2 is covalent molecule. GeO2 has…

Q: Why alkalis like sodium hydroxide and potassium hydroxide should not be leftexposed to air?

A: Alkalis like sodium hydroxide and potassium hydroxide should not be exposed to air because both of…

Q: b. Briefly explain why emission by phosphorescence has shorter wavelength than the absorbed…

A: Phosphorescence is defined as the emission of light  from T1  to So . The radiative transition…

Q: Why do some substances burn in fluorine gas even if they do not burn in oxygen gas?<

A: In most of the combustion reactions, the substance reacts with oxygen.

Q: 3. Write equations for the reactions of Strontium hydride and radium peroxide with water. а. b.

A: 3.  a) • We need to write the reaction of strontium hydride with water.    • Since, we know that,…

Q: Is the reaction of rubidium with water more or less vigorous than that of sodium? How does the rate…

A: The chemical reactivity indicates the readiness of a compound to take part in a chemical reaction.…

Q: * ?What is used to test for chlorine A a glowing splint O B damp litmus paper O C limewater D…

A: Chlorine is member of seventeen group elements, halogen group. It is a pale green gas and has a…

Q: Would you expect rubidium metal to be more or less reactive with waterthan potassium metal?

A:

Q: In 1995, Mario Molina, Paul Crutzen, and F. SherwoodRowland shared the Nobel Prize in chemistry for…

A: Redox reaction- the reaction in which oxidation and reduction takes place simultaneously called as…

Q: Explain the function of sunlight in the bromine reaction.

A: Bromination reaction: The alkane reacts with bromine in the presence of sunlight to form…

Q: Write the balanced equation of the reaction between sodium hypochlorite and water.  10. Write the…

A:

Q: 2. The next few questions will ask you to explain the following properties for these three different…

A: Since you have asked a multiple part table, we will fill first 3 rows for you. For remaining table,…

Q: Write a balanced equation for the formation of rubidium bromide through a reaction of a strong acid…

A: Acid-base reactions Acid-base reactions are the chemical reaction in which an exchange of a single…

Q: A sample of an industrial waste water is analyzed and found to contain 25.8 ppb Cr2+. How many grams…

A: Parts per billion (ppb) :-  The number of parts of solute present billion (109) parts by weight of…

Q: Describe the lanthanide contraction using basic atomic structure theory  (b) What are its effects on…

A: Lanthanide  contraction  occurs due to poor shielding  effect of 4f orbitals.

Q: What exact color does ozone gas have? and explain why it got that color

A: Color of ozone gas

Q: Write equations for the formation of these compounds -) from the elements: a. Strontium Hydride b.…

A: While writing the formation equation from the respective elements, we write the elements in their…

Q: What safety precautions should be taken with selenium? I am preparing to remove selium from water…

A: Selenium is an essential metal for human and other animals, but taking higher doses can be harmful.

Q: What are the major health concerns associated with exposure to nitrogen dioxide?

A: Nitrogen dioxide should be handled carefully. It is a dark brown to yellowish liquid. It has a…

Q: b. State the physical states of the halogens at room temperature and explain the trend.

A: Halogens are group 17 elements. Halogens are non metals in nature. Halogens are Fluorine, chlorine,…

Q: 10.105 Complete and balance each of the following: (10.7) a. ZNCO3(s) + H,SO,(aq) b. Al(s) + HBr(aq)

A: Active metal react with acid give hydrogen gas

Q: Which halogen has the greatest ionization energy? Is that what you would predict based on what you…

A: The minimum amount of energy that is required to remove the electron from an outer valence shell of…

Q: (a) A alkali metals react withhydrogen to form hydrides and react with halogens to formhalides.…

A: Alkali metals are the elements of the periodic table placed in group-1. They are most…

Q: The chemical reactivity and behaviour of boron differs substantially from the rest of the p-block…

A:

Q: Why are the results of flame tests for the alkali metal ions difficult to distinguish? (Choose all…

A: Flame test is used to identify the presence of metal ion particularly group 1 metal ions. It is…

Q: 5. The table below shows the elements in the third period of the Periodic Table, the number of…

A: Elements have the tendency to attain stability by loosing or gaining electrons. In stable form…

Q: A) What are Oxides. Write the difference between acidic and basic oxides. B) Write the equation for…

A: The question is based on the concept of oxides . we have to explain about acidic,  basic and…

Q: Why lithium only forms oxides but not peroxides?

A: The compound in which element is combined with oxygen atom is known as oxide. The oxidation state of…

Q: 8. Write equations for the reactions of Strontium hydride and radium peroxide with water. а. b.

A: Alkaline earth metals are chemical elements in group 2 of the periodic table. Group 2 elements are…

Q: (a) Why is ZnO called a amphoteric oxide? Name another amphoteric oxide(b) What are alkali’s? Give…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Why ZnO appears yellow on heating?

A: The interruption of patterns in the solid crystal leads to the formation of defects.Stoichiometric…

Q: The lanthanide elements react with oxygen to give compounds of the type Ln2O3 (where Ln stands for a…

A: a)  Given that : % mass of Tb = 73.945 % Thus, % mass of O = 100 - 73.945 = 26.055 % Let us consider…

Q: What is used to test for chlorine? * A a glowing splint B damp litmus paper O C limewater

A: what is used to test for chlorine has to be given,

Q: Write balanced chemical equations for the following reactions: (a) cadmium burned in air…

A:

Q: Write the balanced equation of the reaction between chlorine and water.    9. Write the balanced…

A:

Q: 6. Why hydrides of Germanium are known as silanes germanes stannum plumbane

A: Answer The hydrides of Germanium are most useful compounds

Q: The chemical properties of the metallic elements can be considered as arising from the ability of…

A: Group 14 contains carbon,silicon,germanium,tin  lead.

Q: (a) Which poisonous gas is evolved when white phosphorus is heated with Cone. NaOH solution? Write…

A:

Q: In the alkali metal group, the Cesium is less reactive than lithium.

A: To find: Whether the given statement is true or false.

Q: Sketch a periodic table, and label the areas containing ele-ments that give rise to the three types…

A: There are there type of Hydrides are formed such as ionic, metallic and covalent.

Q: From these observations Are alkali metals or alkali earth matal more reactive?

A: As per the guideline, since you have asked multiple questions, we have solved the first question for…

Q: Why do Iodine crystals cause carbon tetrachloride solutions to change its colors? And why it (iodine…

A:

Q: Why are peroxides and super oxides stable in comparison to other oxides?

A: To find: The reason for the higher stability of peroxides and super oxides in comparison to other…

Q: How atmospheric haloes were formed?

A: Clouds in sky are made of crystals of ice. Ice is solid state of water. Water exist in three states-…

Q: Why is it not possible to displace fluorine from metallic fluorides by any other halogens? Explain…

A: It is not possible to displace fluorine from metallic fluorides by any other halogens :