Chemistryacademic

"Predicting the formula of binary ionic compounds Write the empirical formula of at least four binary ionic compounds that could be formed from the following ions: Fe2+,Cr4+,I-,O2-"

Write the empirical formula for at least four ionic compounds that could be formed from the following ions sn2+cl-,sn4+cl-,rb+cl-,ba2+cl-

"How many valence electrons does bromine ([Ar]4s23d104p5) have? A. 5 B. 7 C. 15 D. 17 "

What is the molecular geometry of carbon monoxide?

Fill in the name and empirical formula of each ionic compound that could be formed from the ions cs+i-,cs+br-,cs+cl-,cs+f-

"For each of the three ionic compounds, select which main group X belongs to. (a) X3PO4 (b) CaX2 (c) X2(SO4)3 Group 1A (1) Group 1A (1) Group 1A (1) Group 2A (2) Group 2A (2) Group 2A (2) Group 3A (13) Group 3A (13) Group 3A (13) Group 4A (14) Group 4A (14) Group 4A (14) Group 5A (15) Group 5A (15) Group 5A (15) Group 6A (16) Group 6A (16) Group 6A (16 Group 7A (17) Group 7A (17) Group 7A (17) Group 8A (18) Group 8A (18) Group 8A (18)"

For each atom find the subshell from which electron removed to form +1 cation, and the subshell to which electron added to form −1 anion H I Kr Be

Fill in the name and empirical formula of each ionic compound that could be formed from the ions mg2+s2-,mg2+n3-,mg2+p3-,mg2+02-

"What is the oxidation number of NH3"

"Lewis structure for OCl2"

Draw the Lewis structure and predict the geometry for OF2. Tetrahedral Bent Linear T-shaped

"If (S)-glyceraldehyde has a specific rotation of -8.7°, what is the specific rotation of (R)- glyceraldehyde? A) -8.7° B) +8.7° C) 0.0° D) cannot be determined from the information given"

Fill in the name and empirical formula of each ionic compound that could be formed from the ions sr2+o2-,sr2+n3-,sr2+s2-,sr2+p3-

"Consider a molecule of PBr3, and determine if each of the following statements is True or False. 1) In the best Lewis structure, the central atom has an expanded octet. [ Select ] [""True"", ""False""] 2) The molecular geometry and the electron geometry are the same. [ Select ] [""False"", ""True""] 3) The Br−P−Br bond angle is equal to 120°. [ Select ] [""True"", ""False""] 4) It is a nonpolar molecule. [ Select ] [""False"", ""True""] 5) The hybridization scheme around the central atom is sp2. [ Select ] [""False"", ""True""] "

Find the subshell from which an electron was removed to form +1 cation and the subshell to which an electron was added to form -1 anion. H Cs Cd Kr

Draw lewis dot structure for CH3+ and show formal charges

A solubility curve is a plot of how much solute can dissolve in 100 g of water at a certain temperature. You will use the data from an experiment to create a solubility curve and answer questions about the lab.

"Using VSEPR theory, predict the molecular geometry of the following molecules. H O Br"

"What is the electron geometry of PCl5? Octahedral Tetrahedral Trigonal bipyramidal Square pyramidal"

Molecular Geometry of PH3

"What is the molecular shape of ClCN as predicted by the VSEPR theory? (Carbon is the central atom.) A) linear B) bent C) angular D) trigonal E) none of the above"

"What is the molecular geometry of SeF4? Group of answer choices trigonal bipyramidal square pyramidal seesaw square planar"

What is the molecular geometry of the BF4-?

What are the bond order, HOMO, LUMO, and magnetic properties of the molecular ion F−2?

If 0.035pC of charge is transferred via the movement of Al3+ ions, how many of these ions must have been transferred in total?

"The molecular geometry (shape) of BeH2 is __________. Options Trigonal pyramidal Trigonal planar Bent Linear"

"Draw a Lewis structure for ClO4- in which the central Cl atom obeys the octet rule, and answer the following questions based on your drawing. The number of unshared pairs (lone pairs) on the central Cl atom is: The central Cl atom forms single bonds. The central Cl atom forms double bonds."

Which one of the following is the general form of the Lewis dot formula for silicon?

"Why are alkylamines more basic than arylamines? A) The lone pair electrons are localized in alkylamines and delocalized in arylamines. B) The lone pair electrons are delocalized in alkylamines and localized in arylamines. C) The lone pair electrons are less readily available in alkylamines. D) The lone pair electrons are more readily available in arylamines."

why doesn't SCl4 respect the octet rule?

Which best describes activation energy? A. The maximum amount of energy required to end a chemical reaction. B. The amount of energy absorbed in an endothermic reaction. C. The minimum amount of energy required to start a chemical reaction. D. The amount of energy released in an exothermic reaction.

What is the ranking order of the degree of polarity of HF, HCl, HBr, and HI?

How many protons, neutrons, and electrons are there in a neutral atom of 43 K (potassium-43)?

Hydrogen chloride is a covalent compound. Which is a correct Lewis dot structure for HCl?

The common charges of an element can be related to the electron configuration of the element. Why would copper ions have two common charges?

How do you find the ionic charge of NO3?

Which one of the following is a weak acid? Select one: A. HC104 B. HNO3 C. HCI D. HI E. HF

Why isn't the pH at the equivalence point always equal to 7 in a neutralization titration?

How do you calculate average molarity?

How is sugar dissolving in water a physical change?