Types+of+Reactions+Lab

Request They Both Die at t... ula Enchanted Wa... Question 6 of 20 Balance the following chemical equation (if necessary): Sio,(s) + C(s) → Si(s) + CO(g) 04- 2. 3+ O4+ 1 6. 7 8. 9. Os 6. O9 (s) (1) (g) (aq) C Si Reset • x HO Delete MacBook Air 000 F3 F4 F5 @ %23 2$ % 2 3 5 6. 8 9. W E 5 4- 3. 2. 14

3. Using this data, calculate a value for Kc for the reaction, A. 2.06 x 104 B. 4.84 x 10-3 C. 0.223 D. 4.49 E. 20.2 2 NO(g) + Cl₂(g) 2. NOCI(g) Kc = 3.20 x 10-³ 2 NO2(g) 2 NO(g) + O₂(g) Kc = 15.5 4. Using the data, NOCI(g) + 1/2O2(g) NO2(g) + ½ Cl₂(g) 3 A (g) + 4 B (g) A3B4 (g) calculate a value for Kc for the reaction, 3 A (g) + 4 B -A3B4 (g) 2 AB (g) + AB2 (g) (g) Kc = 25 Kc = 3.75 2 AB (g) + AB2 (g)

9:55 ull LTE Question 4 of 15 Submit Determine the mass in grams of C4H10 that are required to completely react to produce 8.70 mol of CO2 according to the following combustion reaction: 2 C4H10(g) + 13 O2(g) → CO2(g) + 10 H20(g) STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 0.0374 2 mol C4H10 1 mol CO2 8.70 44.01 g H20 2.18 4.35 g O2 18.02 208.00 g CH10 126 13 mol H20 10 6.022 x 1023 mol O2 58.14 g CO2 Tap here or pull up for additional resources

du.co Question 10 of 22 Balance the following chemical equation (if necessary): CH(g) + O,(g) → H,O(g) + CO,(g) 04- 03. 02. O+ O2+ D3+ 04+ 1 4 7 8 9. O3 04 Os + (s) (1) (g) (aq) CO CH.0 H,O Reset • x H,O Delete MacBook Air 80 DII F3 F4 F7 F8 F9 @ $ & 2 4 5 6 8 9 W E R Y S D F G H J K C V B M * CO *3

Which of the following statements is correct concerning the formula of a hydrate experiment? All hydrated salts can be converted into anhydrous salts by heating O Heating the hydrated salt too strongly at the beginning, will lead to a decrease in the calculated value of "x". 20 If the dehydration of the hydrate is incomplete, the calculated value of x" will be lower than the actual value. If the mass of hydrated salt and H20 are 0.59 g and 0.24 g, respectively, then the mass % of water of crystallization is 29 %. O If1.1g of alum is recorded instead of 1.0 g, the calculated value of "x" will be lower than the actual value.

(6) question is in the photo below

Hi! I'm not 100% sure about my first three answers, and I don't known how to do the last question. Thank you for your help!

BaCO3 - Ba2+ + CO3? reaction was given. It is known that the carbonate anion is hydrolyzed in [HCO ][OH] [co? ] CO3- + H20 = HCO; + OH Kb1 and [H2CO3][OH¯] [HCO3] HCO; + H2O = H;CO3 - OH- Kb2 = form. Since Ka1 = 1.44x10-7, Ką2 = 4.7x10-11 and KspBaco3 = 5.1x10-9, calculate the solubility of BaCO; salt at pH = 8 and 12 depending on the pH value.

Suppose that you heated the hydrated copper (II) sulphate in a test tube, instead of a beaker. How might this affect your results? 4 MAY 19 ... MacBook Pro & * %23 $ 2 3 4 5 6 7 E Y U G H J K C V M MOSISO command option command レー

Question 4 of 20 Balance the following chemical equation (if necessary): C,H,O,(g) + O,(g) → H̟O(g) + CO,(g) 2+ 3+ 4+ 4- 3. 4 6. 7 8. 9. 4 8 ). (s) (g) (aq) H,O Co CH,O, Reset • x HO Delete MacBook Air F2 F4 F5 FZ @ 23 2 4 6. 7 2.

(2) 8. Write the balanced equation for the neutralization reaction between HI and Ba(OH)2 in aqueous solution. Include phases (physical states) in your equation. Use the arrow, not "=".

8.55 In the process of Is the of I II? III Skill-Building in similar pairs) Student II writes: A1 + C1, + C1 → A1C13 Student III + 3C1, 2A1C13 6.56 The a between Student I Al + → A1C12 What Al + C12 ss is A1C12 Student II writes: A1 + Cla + Cl → AIC13 Student III writes: 2A1 + 3C12 Student I writes: Al + C12 at is ss is Explain. with ns? elements A (red) and B (green): 5.4 g. stance n, and pustion Vhat is Which best represents the balanced equation for the reaction? lants, is (a) 2A+2B →A2 + B2 mass of (b) A2 + B2 – 2AB (c) B2 + 2AB - 2B2 + A2 (d) 4A2 + 4B2 8AB ned in a 0 were ate?

5. The reaction of gaseous potassium superoxide, KO, is used in life-support systems to replace CO:(g) in expired air with O:(g). The unbalanoced chemical equation for the reaction is given below. KO:(s) + CO:(g) – K:CO:(s) + O:(g) How many moles of K:CO:(s) are produced per milligram of KO2(s) consumed?

Question 1 of 28 (1 point) Question Atempt 1of 1 Lindoe 10 11 12 13 There are two steps in the usual industrial preparaton of acrylic acid, the immediate precursor of several useful plastics. In the first step, calcium carbide and water react to form acetylene and calclum hydroxide: CaC,(s) + 2 H,O(g) → C,H,(0) + Ca(OH),(s) AH--414. k In the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6C,H,(9) + 3 CO,(9) + 4H,O(9) -SCH,CHCO,H(9) AH-132. kJ Calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. pund your answer to the nearest kJ.

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Font Paragraph Styles • 10.I·11 · 12. 14.I 15 · I· 16 . I 17 Rank the basic properties of the following compounds by explaining the factors that influence them:Me3N, Me2NH, MENH2, NH3 a. NH2OH, NH2NH2 b. MesN, Me2NH, MeNH2, NH3 c. MENH2, ETNH2, i-PRMH2, i-BUNH2 d. Me2NH, ET2NH, i-PR2NH, i-BU2NH

9:39 1 ull LTE Question 16 of 24 Submit How many grams of oxygen gas are produced when 2.43 x 10-4 g of KCIO; are completely reacted according to the following chemical equation: 2 KCIO3(s) → 2 KCI(s) + 3 O2(g) STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 1 9.52 x 10-5 g KCIO3 32.00 2 mol KCIO, 1.90 x 10-4 3 mol KCI 74.55 5.95 x 10-6 mol O2 1.98 x 10-6 6.022 x 1023 g O2 2.43 x 10-4 122.55 g KCI 2.97 x 10-6 Tap here or pull up for additional resources

Balance this reaction by adding the missing coefficients of 2 or higher: X' X. He H,SO,+ NaOH Na, SO+ H,0