A beryllium atom has four electrons. What orbitals will the electrons occupy? porbitals only s orbitals only s orbitals and p orbitals s orbitals and d orbitals

Write the chemical formula for disilicon hexabromide. Express your answer as a chemical formula.

When phases of a substance are at equilibrium, the molecules are fixed in their phase. True False

How many orbitals are in the 4p subshell? 1 3 4 5 none of the above

13) What is the molar mass of a 0.726 g sample of gas that occupies 855 mL at 1 .20 atm and 18^circ C

B) A Compound has the following percent cosition by mass: 42.87% carbon, 3.598% hydrogen, 28.55% oxygen, and 25.00% nitrogen. If the molar mass of the compound is known to be between 165-170g/mol determine the empirical and molecular Moles of C: square moles C Moles of H: square moles H Moles of 0: square moles 0 Moles of N: square moles N Empinical Formula: square Molecular Formula: square

Discussion Topic It's sometimes said that water is a "universal solvent." Do a little research on this term. Why do some people call it this? What aspect of its structure makes it a good solvent? If a "universal solvent" could dissolve anything, what problems might you imagine that would cause in everyday life?

Glass is __ A random arrangment of atoms B crystalline C ionically bonded D covalently bonded E metallic structure

8. Determine the name of each covalent compound. a. C_(3)H_(8) b. NO_(3)

6. Provide the formula unit for each compound. a. ammonium bicarbonate b. iron (II) sulfate c. magnesium phosphate d. nickel (II) acetate

Hot Questions

Which of the species below is less basic than acetylide? $CH_{3}MgBr$ $CH_{3}ONa$ $CH_{3}Li$ both A and C all of the above

Choose the conjugate acid for the following base: $N_{2}O_{2}^{2-}$ a. $NO_{2}^{-}$ $HN_{2}O_{2}^{-}$ $H_{2}N_{2}O_{2}$ $HNO_{2}$ $HPO_{4}^{2-}$ b. $H_{2}PO_{4}^{-}$ $H_{2}PO_{4}^{2-}$ $H_{3}PO_{4}$ $H_{3}PO_{4}^{-}$ $B_{4}O_{7}^{2-}$ C. $HB_{4}O_{7}^{2-}$ $HBO_{2}$ $HB_{4}O_{7}^{-}$ $H_{2}B_{4}O_{7}$

The difference between Q and $K_{sp}$ is no differencé. $K_{sp}$ is the value of the product at equilibrium and Q is the value of the product under any condition. Q is the value of the product at equilibrium and $K_{sp}$ is the value of the product under any condition. Q is greater than $K_{sp}$ $K_{sp}$ is greater than Q.

A gas occupies 718 mL at a temperature of $28.36^{\circ }C$ What is the volume of gas at $116.05^{\circ }C$ assuming pressure did not change? Give your answer in L to the hundredths place. Do not put units in the answer space.

Which of the following substances can behave as Lewis bases in an aqueous solution? (Select all that apply) D $CN^{-}$ D $NH_{3}$ $O^{2-}$ $Ag^{+}$ $NH_{4}^{+}$

$CH_{3}-CH_{2}-OH$ Spell out the full name of the compound. $\square $

QUESTION 1 OF 10 When reading a chemical label, it's important to check for what two kinds of hazards? SELECT ALL THAT APPLY health safety storage transportation

3) (4 pts) Give the structures (condensed or line-angle structures) of the isomers of $C_{4}H_{10}$ and name each.

Complete the table to describe the interactions. Interaction Effect on Effect on Species A Species B $\square $ $\square $

Complete and balance the following redox reaction in acidic solution . Be sure to include the proper phases for all species within the reaction. $As(s)\rightarrow H_{2}AsO_{4}^{-}(aq)+AsH_{3}(s)$