What is the chemical formula for iron(II) oxide? FeO Fe_(2)O FeO_(2) Fe_(2)O_(2)
What is the chemical formula for zirconium(II chloride? Zr_(2)Cl_(2) Zr_(2)Cl zrcl ZrCl_(2)
What is the chemical formula for titanium(II)sulfide? TiS Ti_(2)S TiS_(2) Ti_(2)S_(2)
Write the chemica formula for iron(II)sulfate. Fe_(2)(SO_(4))_(2) FeSO_(2) Fe_(2)SO_(4) FeSO_(4)
Bleach solution must be prepared weekly. A) True B) False
Which of the following items does NOT require a secondary label? A) All of these items require a secondary label B) Sanibet solution C) Soap solution D) Rinse water E) Sanitizing bleach solution F) PH7Q Ultra
9.) Which of the following species are paramagnetic? Sc^3+,Br^-,Mg,As A. Sc^3+ B. Br^- C. Mg D. As
What other elements are present? A. Calcium B. Neon C. Carbon D. Hydrogen E. Barium
What is a Pictogram?(Select all that apply) A graphic representation of the chemical hazard A symbol on a white background framed within a red border There can be more than one pictogram associated with a chemical
Is this compound ionic or covalent? NO_(2) ionic covalent
During brazing, which of the following may present health hazards? Zinc Beryllium Cadmium or phosphorus All are correct
Which particles determine the affinity of atoms to each other and thus the likelihood of a chemical reaction? Protons Neutrons Electrons Nucleus
Get It? Explain how the ion $HCO_{3}^{-}$ can be both an acid and a base. Describe what happens in the forward and reverse reactions when ammonia is dissolved in water. Identify the conjugate acid, the conjugate base, and the two conjugate acid-base pairs.
Write the net ionic equation between $Cr_{2}(SO_{4})_{3}(aq)$ and $Ba(OH)_{2}(aq)$ Be sure to include the states of matter. $\square $
Sequence the following equations in the steps of the ionization of phosphoric acid in the correct order. $HPO_{4}^{2-}(aq)+H_{2}O(l)\rightleftharpoons H_{3}O^{+}(aq)+PO_{4}^{3-}(aq)$ $H_{3}PO_{4}(aq)+H_{2}O(l)\rightleftharpoons H_{3}O^{+}(aq)+H_{2}PO_{4}^{2-}(aq)$ $H_{2}PO_{4}^{-}(aq)+H_{2}O(l)\rightleftharpoons H_{3}O^{+}(aq)+HPO_{4}^{-}(aq)$
When a halide leak detector is used, what color will a blue flame turn when it comes in contact with leaking refrigerant vapors? A. blue B. green C. white D. orange
What kind of Isomers are 1-butene and 2-butene (pictured above)? stereoisomers structural isomers geometric isomers not isomers
Write the balanced NET ionic equation for the reaction when $Cr(NO_{3})_{3}$ and $Li_{2}CO_{3}$ are mixed in aqueous solution. If no reaction occurs, simply write only NR. Be sure to include the proper phases for all species within the reaction.
What type of elements are the lanthanides and actinides? a mostly nonmetals and a few metals b mostly metals and a few nonmetals C all nonmetals d all metals
Describe what happens in the forward and reverse reactions when ammonia is dissolved in water. Identify the conjugate acid, the conjugate base, and the two conjugate acid-base pairs.
