Which of the following statements is true about the ionic character of hydrides of Group 1 elements?    A) The ionic character of NaH is greater than KH   B) The ionic character of KH is greater than RbH

Q: How many bonding electrons are in the Lewis structure of O2?(a) 2 (b) 4 (c) 6

A:

Q: Predict the charges on the ions formed when magnesiumreacts with nitrogen.

A: Magnesium reacts with nitrogen to form an ionic compound Mg3N2 which is named magnesium nitride,

Q: why HCHO behaves both as oxidising and reducing agent?

A: In formaldehyde the oxidation state of carbon is 0.

Q: How can you accurately describe the chemical formula [(NH 4) 3PO 4]?

A: the solution is as follows:

Q: The oxygen and nitrogen families have some obvious sim-ilarities and differences.(a) State two…

A: a) In group 5A (15) and 6A (16), the elements are range from gas metalloid to metal. Thus, their…

Q: arrange the following oxoacids in order of decreasing acid strength: HClO, HClO2, HClO3, and HBrO

A:

Q: Why NaClO4 behaves only as oxidising agent?

A: Oxidizing agents are those which causes oxidation of other reagents and themselves get reduced.…

Q: (i) Write the electro-dot structures for sodium, oxygen, and magnesium(ii) Show the formation of…

A: (i) The electron-dot structures for sodium, oxygen, and magnesium is shown below,

Q: Using the standard enthalpy of formation data , calculate the bond energy of the carbon-sulfur…

A: Bond energy or bond enthalpy represents the bond strength, which measures the quantity of energy…

Q: Draw a Lewis structure for each species:(a) The cyclic silicate ion Si6O1812-(b) A cyclic…

A: Lewis’s structure - Lewis structure is the simplest representation atoms  with its valence shell…

Q: Consider the elements O, Ba, Co, Be, Br, and Se. From this list,select the element that (a) is most…

A: The period and the groups of the given elements are stated as follows, Electronegativity of the…

Q: Draw the Lewis structure for the nitronium ion NO+2?

A: We have to draw the Lewis structure of nitronium ion, NO2+.

Q: why fluorine is pale yellow in colour?

A: Fluorine is the smallest element in halogen group so the attractive force between the nucleus and…

Q: What type of bonding do metalloids generally do to form crystal structures? Covalent lonic O…

A: Covalent bonding is the main bonding to form the crystal structures of the metalloids. In this case…

Q: Which of the following may form +1 or +3 ions, depending on the conditions?  Gold Potassium…

A: Which element form +1 or +3 ions, depending on condition:

Q: Write the chemical formula for tellurium diiodide

A: Tellurium : Te Iodine : I2

Q: Which of the following statements is true for the oxide anion, 02-? Select one: O a. It has an…

A: Choose the correct option for O2- ?

Q: Consider the element Work (Wr) with an atomic number of 33 and an atomic mass of 81.03 g/mol. The…

A: Given: Molecule/ Ion Names Wr-2 Workide WrO3-2 Workate WrO2-2 Workite…

Q: Over coffee and croissants at breakfast one day, your friend Lena (an expert chemist) says this:…

A:

Q: What is the charge (oxidation state) of the cation in calcium peroxide?

A: The formula for the calcium peroxide is given below,CaO2

Q: Element Y reacts with oxygen to form the compound Y2O and has the lowest ionization energy of any…

A: We know that O is divalent means it will form two bonds. According to the question O reacts to form…

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

A:

Q: Consider the elements Li, K, Cl, C, Ne, and Ar. From this list, select the element that (a) is most…

A: Consider the elements Li, K, Cl, C, Ne, and Ar. From this list, select the element that (a) is most…

Q: Define the term silicates?

A: Silicates are the compounds of Si and O.

Q: Nitrogen has 5 valence electrons.  What types of bonds would it form?

A: We have to find out the type of bonds formed by Nitrogen which has 5 five valence electrons.

Q: Which halogen is used in the manufacture of photographic plates? O Fluorine O Chlorine O lodine O…

A: Photographic plates are used to capture and store the photographic items. These photographic plates…

Q: Which of the following best describes the type of bond formed when sodium reacts with chlorine lonic…

A: Sodium is metal and chlorine is a nonmetal. Sodium metal is electropositive and chlorine nonmetal is…