▼ aluminum chlorate Express your answer as a chemical formula. 0. xa ΑΣΦ Xb b Part B a b 18 ↑ A chemical reaction does not occur for this question. ->> Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining 0 ΑΣΦ 1 → ammonium nitrate Express your answer as a chemical formula. Shoe ? A chemical reaction does not occur for this question. X ?

Please answer question 19 part A and B

5. A student created a model for the following balanced equation as shown below. What color or pattern is the element sulfur represented by in the student's model? Explain how you were able to determine that. Na.S + 2 HCI I → 2 NaCI + H.S

Ba(ClO3)2 → ____ + 3O2 In one or two sentences, identify the type of reaction that is occurring and identify the other product. Based on the subscripts of the elements in the other product and the fact that chlorine has seven valence electrons, determine the number of electrons in barium’s (Ba) outer shell.

49.410% potassium, sulfur, and 30.32% oxygen are found to be in a sample found in an unlabeled container. What is the empirical formula of this compound? . Write the K then the S then the O. • Do NOT use a ZERO to represent the O or the system will count your answer as wrong.) . You will not be able to type subscripts. Just type the numbers where they go. For example, S₂03 would be typed in as 5203.

1. What is the mass of the water used for this experiment? Creeto Flanin Hot Flamin Hot FLINN FLINN 13.12 9 CEmpty Can Mass 11338 Can 7 Mass 13.12 g 113.38 g 100.26 g 100.26 mL

Consider these compounds: A. PbBr2 B. Ag,Cro4 C. Pb3(PO4)2 D. Ca3(PO4)2 Complete the following statements by entering the letter(s) corresponding to the correct compound(s). (If more than one compound fits the description, include all the relevant compounds by writing your answer as a string of characters without punctuation, e.g, ABC.) Without doing any calculations it is possible to determine that zinc phosphate is more soluble than phosphate is less soluble than and zinc It is not possible to determine whether zinc phosphate is more or less soluble than | by simply comparing Ksp values.

0.10 M formic acid (HCHO₂) Ka = 1.8 x 104 0.10 M sodium formate (NaCHO₂) 0.10 M acetic acid (HC2H302) Ka = 1.8 x 10¹5 0.10 M sodium acetate (Na C₂H30₂) 0.10 M carbonic acid (H₂CO3) Ka = 4.3 x 107 0.10 M sodium bicarbonate (NaHCO3) 0.10 M KOH 0.10 M HCI 0.10 M boric acid (H3BO3) Ka = 5.8 x 10-10 0.10 M sodium borate (NaH₂BO3) 4. Which reagents listed above should be mixed to result in a buffer of about pH 6-8?

Barium  +  Aluminum nitrate  =   ANSWER IN WORDS ONLY!!!

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