Química
Reacciones químicas, estequiometría, estructuras moleculares y propiedades.
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14.) $ce{ccl_{4}}$ (1 point)○ carbon tetrachloride○ monocarbon tetrachl…
Carbon Tetrachloride
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directions: write the name for each of the following molecular compound…
A. Dinitrogen Pentoxide
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12.) $ce{niso_{4}}$ (1 point) $\bigcirc$ nickel (i) sulfate $\bigcirc$ …
Nickel (II) Sulfate
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11.) $\text{ba(oh)}_2$ (1 point)$\bigcirc$ barium hydroxide$\bigcirc$ b…
A. Barium Hydroxide
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directions: write the name for each of the following ionic compounds. 1…
Magnesium Oxide
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9.) copper (ii) sulfate (1 point)○ $ce{cu_{2}s_{2}}$○ $ce{cuso_{4}}$○ $…
B. $\text{CuSO}_4$
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9.) copper (ii) sulfate (1 point)$ce{cu_{2}s_{2}}$$ce{cuso_{4}}$$ce{cu_…
B. $\text{CuSO}_4$
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8.) calcium oxide (1 point)$ce{ca_{2}o_{2}}$$ce{co}$$ce{cao}$$ce{caoh}$
C. CaO
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7.) ammonium carbonate (1 point) ○ $(nh_4)_2c$ ○ $al_4c_3$ ○ $al_2(co_3…
$\boldsymbol{(NH_4)_2CO_3}$
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6.) aluminum sulfide (1 point) ○ $al_3s_2$ ○ $al_2(so_4)_3$ ○ $al_2s_3$…
C. $\text{Al}_2\text{S}_3$
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directions: complete each of the following sentences by filling in the …
1.) Anions have a **negative** charge. 2.) A covalent bond is formed by a **shared** pair of electrons. 3.) An atom becomes an ion by losing or gaining **electrons**. 4.) The atom…
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counterclaim: banning plastic water bottles removes a healthy option fo…
Plastic water bottles should be banned. They cause enormous waste and environmental issues.
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oxygen is acting as an oxidizing agent in all of the following reaction…
C. $2\ \text{F}_2(\text{g}) + \text{O}_2(\text{g}) ightarrow 2\ \text{OF}_2(\text{g})$
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oxygen is acting as an oxidizing agent in all of the following reaction…
C. $2\ \text{F}_2(\text{g}) + \text{O}_2(\text{g}) ightarrow 2\ \text{OF}_2(\text{g})$
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oxygen is acting as an oxidizing agent in all of the following reaction…
C. $2\ \text{F}_2(\text{g}) + \text{O}_2(\text{g}) \to 2\ \text{OF}_2(\text{g})$
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oxygen is acting as an oxidizing agent in all of the following reaction…
C. $2 \text{F}_2(\text{g}) + \text{O}_2(\text{g}) ightarrow 2 \text{OF}_2(\text{g})$
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oxygen is acting as an oxidizing agent in all of the following reaction…
C. $2\ \text{F}_2(\text{g}) + \text{O}_2(\text{g}) ightarrow 2\ \text{OF}_2(\text{g})$
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oxygen is acting as an oxidizing agent in all of the following reaction…
C. $2\ \text{F}_2(g) + \text{O}_2(g) ightarrow 2\ \text{OF}_2(g)$
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9. why are stage directions important?a. they eliminate the need for di…
9. c. They guide the actors' movements 10. a. A character's words or actions 11. a. Characters' actions and dialogue 12. d. Expressing emotions clearly through voice and body 13. …
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oxygen is acting as an oxidizing agent in all of the following reaction…
C. $\ce{2 F_{2}(g) + O_{2}(g) → 2 OF_{2}(g)}$
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oxygen is acting as an oxidizing agent in all of the following reaction…
C. $2 \text{F}_2(\text{g}) + \text{O}_2(\text{g}) ightarrow 2 \text{OF}_2(\text{g})$
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oxygen is acting as an oxidizing agent in all of the following reaction…
C. $2 \text{F}_2(\text{g}) + \text{O}_2(\text{g}) ightarrow 2 \text{OF}_2(\text{g})$
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mayonnaise□ suspension☑ colloid□ solution□ heterogeneous mixture☑ homog…
- B. colloid - E. homogeneous mixture
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liquid soap solution colloid suspension homogeneous mixture heterogeneo…
- ✓ colloid - ✓ homogeneous mixture
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homework 6 question 4 of 20 (1 point) | question attempt: 2 of 3 fog so…
- colloid - heterogeneous mixture
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liquid soap solution colloid suspension homogeneous mixture heterogeneo…
- ✓ colloid - ✓ homogeneous mixture
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mint chocolate chip ice cream (mint ice cream + chocolate chips)□ solut…
☑ heterogeneous mixture
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blood □ solution □ suspension □ homogeneous mixture □ heterogeneous mix…
☑ suspension ☑ heterogeneous mixture ☑ colloid
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fog□ solution□ suspension□ heterogeneous mixture□ colloid□ homogeneous …
☑ colloid
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classify each of the following substances as a colloid, heterogeneous m…
☑ colloid ☑ homogeneous mixture
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part 1 of 2 how many milliliters of a 10.0 m sucrose solution would be …
57.4 mL
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what is the concentration of a solution formed by diluting 27.0 ml of a…
0.31 M
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part 2 of 2 what is the molarity of glucose in the blood? $square$ m $0…
$0.0075$ M (or $7.5 \times 10^{-3}$ M)
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part 2 of 2 510. ml of a 0.85 m solution $square$ mol nacl 1.2 mol nacl
0.43 mol NaCl
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how many moles of nacl are contained in each volume of aqueous nacl sol…
1.2 mol NaCl
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part 2 of 2 19.0 g of $\text{nahco}_3$ in 480. ml of solution. be sure …
$0.471\ \text{M NaHCO}_3$
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part 1 of 2 what is the molarity of a solution prepared using the given…
1.1 M NaCl
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part 3 of 3 55.3 g mgcl₂ in 210. ml solution □ m
2.77 M
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question 13 of 20 (1 point) | question attempt: 1 of 3 part 2 of 3 26.0…
$0.0356$ M
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part 1 of 3 calculate the molarity of each aqueous solution with the gi…
1.53 M
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part 2 of 2 $7.\\times 10^{-4}$ g in 1.9 kg minnow tissue. be sure your…
$4 \times 10^{-1}$ ppm DDT (or 0.4 ppm DDT)
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what is the concentration in parts per million of ddt in each of the fo…
0.018 ppm DDT
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part 1 of 2 a commercial rubbing alcohol contains 34. g of isopropanol …
Isopropanol: $76\%$ (weight/volume) Sucrose octaacetate: $0.43\%$ (weight/volume)
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part 1 of 2 a commercial rubbing alcohol contains 34. g of isopropanol …
Isopropanol: $76\%$ (weight/volume) Sucrose octaacetate: $0.43\%$ (weight/volume)
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a 750.-ml bottle of vodka contains $2.8 \\times 10^{2}$ ml of ethanol. …
37% (v/v) ethanol
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which of these uses logos? a. yum organics has been providing well-roun…
D. All of the other schools in our district offer organic foods in the lunchroom; therefore, our school should offer organic foods as well.
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what is the $\frac{weight}{volume}$ percent concentration of the solute…
7.87 % (w/v) NaOH
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which substance can be classified as a nonelectrolyte?○ licl○ $\text{kn…
○ H₂O₂
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which of the following is classified incorrectly based upon the descrip…
All are classified correctly.
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which of the following lists the types of mixtures in order of increasi…
solution < colloid < suspension
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oxygen is acting as an oxidizing agent in all of the following reaction…
C. $\ce{2 F2(g) + O2(g) → 2 OF2(g)}$
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oxygen is acting as an oxidizing agent in all of the following reaction…
C. $2 \text{F}_2(\text{g}) + \text{O}_2(\text{g}) ightarrow 2 \text{OF}_2(\text{g})$
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according to the solubility principle of \like dissolves like,\ which p…
a nonpolar molecule and a nonpolar molecule
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the extra terrestrials who banished the imperial unit system also got a…
3
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which is not an example of a solution? ○ a dental filling ○ chicken noo…
○ a dental filling
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the extra terrestrials who banished the imperial unit system also got a…
3
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the extra terrestrials who banished the imperial unit system also got a…
1
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how many 5s electrons does cr²⁺ have?
0
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part 3 of 3 in a can of a carbonated beverage such as soda, ____ would …
water
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in a can of a carbonated beverage such as soda, ___ would be considered…
$\text{CO}_2$
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oxygen is acting as an oxidizing agent in all of the following reaction…
C. $2\ \text{F}_2(\text{g}) + \text{O}_2(\text{g}) \to 2\ \text{OF}_2(\text{g})$
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determine the enthalpy of the reaction of $ce{hcl(g) + nano_{2}(s) -> h…
$\Delta H^\circ = +471.5\ \text{kJ/mol}$ (rounded to one decimal place, or $+471.55\ \text{kJ/mol}$ for precise value)
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oxygen is acting as an oxidizing agent in all of the following reaction…
# Explanation: ## Step1: Define oxidizing agent role An oxidizing agent gains electrons, so its oxidation number decreases. ## Step2: Find O oxidation number in reactants In $\tex…
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oxygen is acting as an oxidizing agent in all of the following reaction…
C. $2 \text{F}_2(\text{g}) + \text{O}_2(\text{g}) ightarrow 2 \text{OF}_2(\text{g})$
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you can resize the interactive by slowly dragging the dashed lines to t…
1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁴
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having problems staying logged in or are you experiencing issues? pleas…
$1s^2 2s^2 2p^6 3s^2 3p^1$ (the third option)
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you can resize the interactive by slowly dragging the dashed lines to t…
1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁴
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k shorthand: $1s^22s^22p^63s^23p^64s^2$ si shorthand: mn shorthand: zr …
- K: $[Ar]4s^1$ - Si: $[Ne]3s^23p^2$ - Mn: $[Ar]4s^23d^5$ - Zr: $[Kr]5s^24d^2$
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k shorthand: $1s^22s^22p^63s^23p^64s^1$ si shorthand: mn shorthand: zr …
- Sn Shorthand: $[\text{Kr}] 4d^{10} 5s^2 5p^2$ - Mn Shorthand: $[\text{Ar}] 3d^5 4s^2$ - Zr Shorthand: $[\text{Kr}] 4d^2 5s^2$
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ts elementary : building elements chapter pages tool: interactive perio…
1. Drag all orbitals (1s, 2s, 2p$_x$, 2p$_y$, 2p$_z$, 3s, 3p$_x$, 3p$_y$, 3p$_z$) to the "Drag objects here" area. 2. Assign electrons as follows: - Row 1 (1s): Fill the box with …
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electron configuration practice due date: chemistry e. in the space bel…
1) $1s^22s^22p^63s^1$ 2) $1s^22s^22p^63s^23p^64s^23d^6$ 3) $1s^22s^22p^63s^23p^64s^23d^{10}4p^5$ 4) $1s^22s^22p^63s^23p^64s^23d^{10}4p^65s^24d^{10}5p^66s^2$ 5) $1s^22s^22p^63s^2$ …
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a certain reaction is first order in $ce{n_{2}}$ and second order in $c…
Second row initial rate: $\boldsymbol{7.68 \times 10^4\ M/s}$ Third row initial rate: $\boldsymbol{2.63 \times 10^5\ M/s}$
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a certain reaction is first order in $ce{h_2}$ and first order in $ce{i…
Row 2 initial rate: $0.930\ \text{M/s}$ Row 3 initial rate: $0.689\ \text{M/s}$
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name type here date type here writing chemical formula & balancing chem…
1, 4, 1, 5
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name type here date type here writing chemical formula & balancing chem…
1, 4, 1, 5
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name type here date type here writing chemical formula & balancing chem…
1, 2, 1, 1
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name type here date type here writing chemical formula & balancing chem…
2, 6, 2, 3
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writing chemical formula & balancing chemical equations - slide 13 writ…
1. For $\boldsymbol{HCl + NH_3 ightarrow NH_4Cl}$: Coefficients: 1 (HCl), 1 (NH₃), 1 (NH₄Cl) Missing names: Hydrochloric acid (HCl), Ammonium chloride (NH₄Cl) 2. For $\boldsymbol{…
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name type here date type here writing chemical formula & balancing chem…
Coefficients (left to right): $1$, $2$, $1$, $1$ Missing names: - HCI: Hydrochloric Acid - $\text{FeCl}_2$: Iron(II) Chloride Balanced equation: $\text{Fe} + 2\text{HCl} ightarrow…
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name type here date type here writing chemical formula & balancing chem…
### First Equation: Coefficients: 1 (for $\text{N}_2$), 1 (for $\text{O}_2$), 2 (for $\text{NO}$) Missing names: Nitrogen (under $\text{N}_2$), Nitrogen monoxide (under $\text{NO}…
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a(n) ______ is an accurate representation of visible light. a. eye b. r…
C. electromagnetic spectrum
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a. write balanced molecular (not ionic) equations for each of the follo…
## Part a (Balanced Molecular Equations): A. $\text{HNO}_3 + \text{KC}_2\text{H}_3\text{O}_2 ightarrow \text{KNO}_3 + \text{HC}_2\text{H}_3\text{O}_2$ B. $3\text{Mg(ClO}_3\text{)}…
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question 10 1 pts in a wet cell battery what is the electrolyte? zinc c…
liquid acid
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experiment 6 ions in solution: electrolyte strength and electrical cond…
1. A. $\text{BaCl}_2$: Ionic B. $\text{SO}_2$: Covalent C. $\text{HBr}$: Covalent D. $\text{KNO}_3$: Ionic and Covalent E. $\text{PbI}_2$: Covalent F. $\text{H}_2\text{C}_2\text{O…
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question 7 1 pts gas particles moving through a pinhole refers to what …
Question 7: Effusion Question 8: Increasing the temperature
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match each of the equations with their reaction type. $2\\text{nabr} + …
- $2\text{NaBr} + \text{CaF}_2 ightarrow 2\text{NaF} + \text{CaBr}_2$: double replacement - $\text{SnO}_2 + 2\text{H}_2 ightarrow \text{Sn} + 2\text{H}_2\text{O}$: single replacem…
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which chemical symbols will complete the equation for this decompositio…
First blank: $\text{K}$, Second blank: $\text{I}$
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synthesis na + cl₂ decomposition 2nacl single replacement 2na + 2h₂o do…
- Synthesis $\ce{Na + Cl2}$ → $\boldsymbol{2NaCl}$ - Decomposition $\ce{2NaCl}$ → $\boldsymbol{2Na + Cl2}$ - Single Replacement $\ce{2Na + 2H2O}$ → $\boldsymbol{2NaOH + H2}$ - Dou…
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what are the products from a combustion reaction always water only carb…
Carbon dioxide and water only
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9) a granite batholith is exposed at the surface, and over thousands of…
9) D. Unloading 14) C. It increases the rate of both mechanical and chemical weathering. 7) (Correct option not shown in the image, but the process is differential weathering)
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4) mechanical weathering changes the chemical composition of the parent…
4) False 11) True 6) The water carries weathered material downstream, where it is primarily deposited, building up features like deltas.
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12) granite, which is primarily composed of quartz and feldspar, genera…
12) True 5) Transported soil 3) Bedrock
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15) which factor has the most direct impact on increasing the rate of c…
C. High temperatures and abundant moisture
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13) which of the following landforms is created primarily through the p…
13) C. A river valley or canyon cut by moving water 2) Hydrolysis
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question 1 1 pts which of the following is not a principle of kmt? part…
Question 1: Particles are soft, squishy spheres. Question 2: Helium
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question 7 1 pts two firms, a and b, each currently dump 60 tons of che…
5000
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inquizitive chapter 2. methods 2.1 define key terms essential to sociol…
After seeing her dog eat chocolate and later get sick, a child tells a playmate that chocolate is bad for dogs. - inductive reasoning A dog, having gotten a bite of chocolate cake…
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select the dependent clause. frozen foods may lose water molecules and …
unless they are wrapped tightly
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of a chemical reaction. 32. list several reasons why the actual yield f…
32. - Side reactions form unwanted products - Reactants may not fully react - Product is lost during collection/purification - Starting materials contain impurities 33. Percent yi…
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8. which change can be reversed by physical means? a. burning wood b. r…
c. Dissolving sugar