TE/1. Observe: Type "H2" into the Reactants box and hit Enter on your keyboard. Note that theformula is shown as H₂ below. The small "2" in H₂ is a subscript.A. What does the "2" in H₂ represent?B. In general, what do you think a subscript in a chemical formula tells you?C. Try typing in other subscripts next to the H, such as 3, 4, and 5. Is your answer toquestion B still true? Explain.2. Count: Clear the Reactants box, and type in a more complex chemical formula: "Ca(OH)2."Look at the number ofA. How many of each type of atom do you see? Ca:B. In general, what happens when a subscript is found outside of parentheses?C. Try typing in other subscripts next to the (OH), such as 3, 4, and 5. Is your answer toquestion B still true? Explain.AgCl3Cu2Ba(ASO4)2(NH4)3PO4MnPba(Si₂O7)33. Practice: For each of the real chemical formulas below, calculate how many of each elementthere are. Check your answers for the first three formulas using the Gizmo.Ag:Ba:N:Mn:CI:As:H:Pb:Reproduction for educational use only. Public sharing or posting is prohibited.Cu:O:P:O:Si:DELLO:H:O:©2018 ExploreLearning All rights reservedOCel

There are three questions asked. So only first one will be solved as per the guidelines. Kindly post…

1. Observe: Type "H2" into the Reactants box and hit Enter on your keyboard. Note that the formula is shown as H₂ below. The small "2" in H₂ is a subscript. A. What does the "2" in H₂ represent? B. In general, what do you think a subscript in a chemical formula tells you? C. Try typing in other subscripts next to the H, such as 3, 4, and 5. Is your answer to question B still true? Explain.

1. Observe: Type "H2" into the Reactants box and hit Enter on your keyboard. Note that the formula is shown as H₂ below. The small "2" in H₂ is a subscript. A. What does the "2" in H₂ represent? B. In general, what do you think a subscript in a chemical formula tells you? C. Try typing in other subscripts next to the H, such as 3, 4, and 5. Is your answer to question B still true? Explain.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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M Apple Google Disney ESPN Yahoo! Biomedical Careers Program ☆ For the reaction Fe(s) +2HCl(aq)→→→→→FeCl₂(s) + H₂(g) AH° = -7.4 kJ and AS° = 107.9 J/K B Submit Answer Apple ☆ prod03-cnow-owl.cengagenow.com iCloud Yahoo Images Bing Google Wikipedia Facebook Twitter LinkedIn G b COWLv2... b D2L D2L D2L [Review Topics] [References] Use the References to access important values if needed for this question. D2L The maximum amount of work that could be done when 2.08 moles of Fe(s) react at 286 K, 1 atm is Assume that AH° and AS° are independent of temperature. Retry Entire Group 4 more group attempts remaining The Weather Channel C D2L Yelp TripAdvisor M kJ. +
1. You want to synthesize an organic compound. For example, you want to synthesize ethanol from ethyl bromide and NaOH. a. The excess reactant should be because Blank 2: give reasons in "Other". ethyl bromide (blank 1) NaOH (blank 1) Ethanol (blank 1) Other: b. To calculate the theoretical yield of ethanol in this reaction, I would calculate the moles of, which is the reactant, convert to moles of and then convert to moles of and finally convert to mass of. Give a one or two word answer in each blank. Blanks 4 and 5 are the same answer. Separate each answer with a comma. Your answer C. A reaction occurs when reactants collide with sufficient energy for bonds to break and form. One way to make reactants collide with sufficient energy for bonds to break and form is to Give an answer in 5 words or less. Your answer
Consider these compounds: A. Ba3(PO4)2 B. Ca3(PO4)2 C. PbCrO4 D. CaCrO4 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 barium sulfite is more soluble than fill in the blank 1, and barium sulfite is less soluble than fill in the blank 2. It is not possible to determine whether barium sulfite is more or less soluble than fill in the blank 3 by simply comparing Ksp values.
Consider these compounds: A. Ba3(PO4)2 B. Ca3(PO4)2 C. PbCrO4 D. CaCrO4 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 barium sulfite is more soluble than _________, and barium sulfite is less soluble than ______ It is not possible to determine whether barium sulfite is more or less soluble than _________ by simply comparing Ksp values
a. b. E 1. NaNH, 2. CH₂CH₂Br 3. H₂O 4. PhCH₂Br 1. NaNH, 2. N you 3. H₂O* 1. NaNH, 2. 3. H₂O*
Which of the following is a cis isomer? H. H. C=C CH3 H,C CH, 3 C=C H,C H H H-C C-H
1. Moles of NaHCO3 and NaCl:2. Mole Ratio:3. How does your experimental ratio compare to the theoretical? If they are different,explain what might have caused the difference.4. Calculate the percent error.
A. Look at each formula in the list below and identify each As Acid (A), Ionic (I), or Molecular (M) in the first column As binary (B) or polyatomic (P) in the second column As Type II (T) if it contains a type II metal Formula Acid, Ionic, or Molecular Binary or Polyatomic ion Type II metal KI НСІ BaSO 4 SO 2 Fe(NO 3 ) 2 Hg H 2 SO 4
The options a. Argon Xenon Helium b. Liquid silver chloride Solid silver chloride Silver cation and chloride anions c. 1L of pure hexane A 1L mixture of hexane, pentane, and octane 1L of pure pentane d. Steam Liquid water Ice e. Pure propane (C3H8) Pure octane (C8H18) Pure pentane (C5H12)
Predict the chemical formulas of the compounds formed by the following pairs of ions.
please answer this question correctly. dont just give an answer, please include brackets, mutiplucation ( if neccessary), etc. 1. Find the number of moles in 3.7 x 10 ^-5 g of magnesium phosphate. hello i've got an answer, but would like for it to be on paper. this picture is an similar example of how i want this problem to be solved. (The last question had the wrong picture)
DATA: Data Table 1: NaHCO, Reaction Data Mass of evaporating dish (g) 43.9449 g Mass of evaporating dish + NaHCO3 (g) 44.2376 g Mass of NaHCO3 (g) 0.2927 44.1411 g Mass of evaporating dish + NaCl product after 1st heating (g) Mass of evaporating dish + NaCl product after 2nd heating (g) Mass of evaporating dish + NaCl product after 3rd heating (g) (if necessary) Mass of NaCl product (g) (actual yield) 44.1401 g