Chemie
Chemische Reaktionen, Stöchiometrie, Molekülstrukturen und Elementeigenschaften.
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19. this family contains 2 nonmetals, 2 metalloids, and one metal. (0.5…
Nitrogen group
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18. what family is the most reactive group of metals? (0.5 points) * tr…
Alkali metals
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17. what element is in a metalloid location, but is not a metalloid? (0…
Aluminum (\(Al\))
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16. members of this family are less reactive metals and do not have ide…
Transition metals
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15. this family contains 3 nonmetals, one metalloid, and one metal. (0.…
Nitrogen group
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14. what are horizontal rows in the periodic table called? (0.5 points)…
Periods
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13. members of this family are so reactive that they are never found in…
Alkali metals
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12. the periodic table is organized by increasing ______________. (0.5 …
atomic number
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11. members of this family are shiny and reactive. they have rather lar…
Lanthanides
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10. the elements in the middle of the table are called \______\ element…
metalloids
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9. this family is all radioactive. (0.5 points) * halogens oxygen group…
Actinides
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7. what element is in a family all by itself? (0.5 points) * enter your…
7. Hydrogen 8. left - hand
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6. members of this family are inert or unreactive. (0.5 points) * alkal…
Noble gases
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5. the small group of elements that touch the zigzag line are called __…
metalloids
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4. members of this family all have 7 valence electrons. (0.5 points) * …
Halogens
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3. this family has varied reactivity and contains one nonmetal and 2 me…
Carbon group
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2. what do you call vertical columns in the periodic table? (0.5 points…
Groups
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1. members of this family all have 1 valence electron. (0.5 points) * h…
Alkali metals
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3. name the following chemical formulas for ionic bonds a. licl b. k₃p …
3. a. Lithium chloride b. Potassium phosphide c. Aluminum carbide d. Cesium boride e. Strontium selenide 4. a. \(FeCl_3\) b. \(PbO_2\) c. \(AlP\) d. \(Rb_2S\) e. \(Hg_2Br_2\)
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covalent and ionic bond nomenclature practice 1. name the following che…
1. a. Carbon dioxide b. Trisilicon hexabromide c. Carbon monoxide d. Boron tetrafluoride e. Ammonia 2. a. \(PCl_7\) b. \(N_2O_4\) c. \(SI_5\) d. \(CH_4\)
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3. explain the chemistry concept that causes the atomic radius to chang…
The atomic radius decreases from left to right across a period due to the increase in nuclear charge (number of protons) which pulls the electrons closer to the nucleus while the …
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1. on the periodic table, draw the arrow(s) for increasing atomic radiu…
Phosphorus (P) has a bigger atomic radius than sulfur (S).
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unit 5 l test 2526 which of the following best represents the particle …
mixture
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match the following terms to their definitions electronegativity ioniza…
- Electronegativity: An element's tendency to attract other electrons. - Ionization Energy: How much energy it takes to remove an electron from an atom. - Atomic Radius: The size …
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what is the mass, in grams, of 63.0 moles of c? 8.06 grams 756 grams 12…
756 grams
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alkal metals are highly ____ since they ____ easily to form ions nonrea…
reactive, lose 1 electron
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which of the following are usually good conductors of heat and electric…
Metals
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unit 5 l test 2526 which group on the periodic table is inert, and has …
Noble Gases
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which group on the periodic table has the most reactive non - metals? a…
B. Halogens
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group 3 - 12 on the periodic table, which are located in the d - subshe…
Transition Metals
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which of the following elements has the largest atomic radius? f o n c
C. \(C\)
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unit 5 l test 2526 which of the following is true about elements and el…
Na is more electronegative than Ca.
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the periodic table of the elements is shown below. cesium (cs), the cir…
Sodium (Na) and Potassium (K)
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the table below provides some information about an unidentified element…
K (Potassium - Atomic number 19)
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which element is brittle and does not conduct heat or electricity? o b …
B. B
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unit 5 l test a property of most nonmetals in the solid state is that t…
Brittle
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details no additional details were added for this assignment. which typ…
both igneous and sedimentary rock
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unit 5 l test 2526 the modern periodic table arranges elements based up…
Atomic number
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independent practice: elements and the periodic table 1.why are element…
1. They have similar chemical properties due to the same number of valence electrons. 2. - Group 1 - Period 3 - 11 - Lithium (Li), Potassium (K), Rubidium (Rb), Cesium (Cs), Franc…
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which list consists of elements that have the most similar chemical pro…
Mg, Ca, and Sr
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which letter represents one of the elements in the halogen family? o a …
C
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group 17 elements on the periodic table are mostly metalloids metals no…
Nonmetals
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which letter represents one of the elements in period 4? a b c d
B
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which of the following is correct? argon is a halogen magnesium is in p…
Silver is a transition metal.
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unit 5 l test 2526 the periodic table is an organizational tool used fo…
all of the above
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click or tap on any pronoun (or group of words containing a pronoun) th…
they, It
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what is an * 20 points electron? the small dense region consisting of p…
a subatomic particle whose electric charge is negative
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classify each of the materials below. in the center column, state wheth…
| Material | Pure Substance or Mixture | Element, Compound, Homogeneous, Heterogeneous | |---|---|---| | concrete | Mixture | Heterogeneous | | sugar + pure water ($C_{12}H_{22}O_…
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what is a proton? * 20 points the small dense region consisting of prot…
a stable subatomic particle with a positive electric charge
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3. note the mass of a copper(i) oxide formula unit in the image below. …
\(1181\space g\)
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6. “what they the franks learned from the arabs wasindispensible in the…
D. The effects of interregional contact on the development of European culture and technology
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1. the jars below, from left to right, each contain exactly one mole of…
1. Each jar contains the same number of atoms. 2. The jar of sulfur.
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the equivalent mass of kmno₄ in a high basic medium is equal to its mol…
C. 1
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what kind of bond is formed when lithium and fluorine combine to form l…
Hydrogen, polar.
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what is the bond order of no? do not use fractions to report your answe…
Bond order: \(2\) Stable
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is the no molecule paramagnetic or diamagnetic? paramagnetic diamagnetic
Paramagnetic
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the correct formulas for the binary covalent compounds triiodide heptaf…
4) \(I_3F_7\) and \(P_4O_6\)
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question 10 (1 point) listen the correct formulas for ammonium sulfate …
2) \((NH_4)_2SO_4\) and \(NH_4C_2H_3O_2\)
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question 9 (1 point) listen the correct names of $ca_3n_2$ and $ba_3n_2…
3) Calcium nitride and Barium Nitride
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question 8 (1 point) listen which of the following is correct? 1) s₈ is…
3) \(O_2\) is a molecular element.
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is the no molecule paramagnetic or diamagnetic? paramagnetic diamagneti…
# Explanation: ## Step1: Determine the molecular orbital configuration of NO Nitrogen has 7 electrons and oxygen has 8 electrons. So, NO has 7 + 8 = 15 electrons. The molecular or…
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question 7 (1 point) listen the correct formulas for manganese(ii)hydro…
3) \(Mn(OH)_2\) and \(Cu(NO_3)_2\)
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what is the bond order of the cn molecule? do not use fractions to repo…
For the bond - order of \(CN\): \(3\) For the stability of \(CN^{-}\): Stable
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question 6 (1 point) listen the correct names of fe3(po4)2 and zn(no3)2…
2) Iron(II)Phosphate and Zinc nitrate
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question 5 (0.5 points) listen the correct formulas for copper(ll)bromi…
3) \(CuBr_2\) and \(Cu_2O\)
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question 4 (0.5 points) listen the correct names of $\\ce{pbcl_{4}}$ an…
2) Lead(IV)chloride and Nickel(II)Bromide
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is the cn⁻ ion paramagnetic or diamagnetic? paramagnetic diamagnetic
Diamagnetic
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question 3 (1 point) listen the correct names of the acids hcl and hco₃…
1) Hydrochloric acid and Carbonic acid
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question 2 (1 point) listen the correct names of the acids hno₃ and h₂s…
3) Nitric acid and Hydrosulfuric acid
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question 1 (1 point) listen the correct formulas for beryllium sulfide …
1) \(BeS\) and \(Li_3P\)
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what is the hybridization on the central atom of scl₃⁺? ○ sp³ ○ sp² ○ s…
\(sp^{3}\)
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question 3 what is the hybridization on the central atom of scl₃⁺? sp³ …
\(\sigma\)-bonds: \(6\) \(\pi\)-bonds: \(3\)
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question 1 a bond order of 1.5 represents a stable chemical bond. true …
True # Question 2
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use with textbook pages 276 to 285. light vocabulary chemiluminescence …
1. energy 2. incandescence 3. luminescence 4. energy 5. chemiluminescence 6. incandescence 7. wave 8. wavelength 9. electromagnetic spectrum 10. electromagnetic wave 11. wavelengt…
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draw an mo energy diagram of li₂⁺. drag the appropriate labels to their…
- In the \(2s\) orbital of \(Li\): label with 1 electron. - In the \(2s\) orbital of \(Li^{+}\): label with 0 electrons. - In the \(\sigma_{2s}\) (bonding) orbital of \(Li_{2}^{+}…
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19) circle the correct choice given below the diagrams 1) a) a pure sub…
1) B. A pure substance - (a compound) 3) E. mixture of an element and a compound 5) D. mixture of compounds 7) A. A pure substance - (an element) 9) C. mixture of elements 11) B. …
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naming acids homework possible points: 1.88 when naming acids with endi…
When naming acids with **polyatomic** ending in **-ate**, you change the suffix to **-ic**, and add **Acid** to the end. When naming acids with **polyatomic** ending in -ite, chan…
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naming acids homework possible points: 1.88 are made from hydrogen and …
1. Binary 2. Acids 3. Nonmetal 4. Hydro 5. Nonmetal 6. -ic 7. Acid
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naming acids homework possible points: 1.88 acids have a of less that .…
pH, 7, sour, caustic, hydrogen
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38. in baking biscuits and other quick breads, the baking powder reacts…
41. \(63.8\space g\) 42. \(44.2\space g\) 43. \(40.6\space g\) 44. \(25.4\space g\) 45. \(204.3\space g\)
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uranium is an element that is often used in nuclear power plants. urani…
They each have the same number of protons.
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... it may be concluded that a pure democracy... can admit of no cure f…
Pure democracies can't cure faction mischief because a majority has a common passion/interest, communication/concert from government form, no check on sacrificing the weaker. A re…
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which steps will help you identify central ideas in a sonnet? check all…
finding a single idea or concept that links the big ideas in each quatrain, restating main ideas in my own words
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10. which of the following statements is false? a. atoms found in an el…
10. B. The atoms of chlorine are the same as the atoms in potassium. 11. C. Iron plus sulfur after heating. (FeS) 12. - Air (\(N_2+CO_2 + O_2\)): Mixture - Copper: Pure Substance …
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dalton thought that all atoms of the same elements had the same mass. t…
True
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read the first five lines of shakespeares \sonnet 12,\ and use the drop…
a, b, c
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dalton was correct in thinking that atoms could not be divided into sma…
False
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both democritus and dalton suggested that matter is made up of atoms ○ …
True
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review the following quote from machiavelli, the prince. \it is much sa…
A humanist approach that emphasized practical political analysis over idealism.
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which statements about sonnets are true? check all that apply. shakespe…
- B. The sonnet form was invented in Italy, and then adopted by English poets. - C. Sonnets are a kind of poetry. - E. The two types of sonnets are English (Shakespearean) and Ita…
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why is it fun to be frightened? model 1 john carpenters iconic horror f…
Social Science - Psychology
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the selection, and choose the best answer to each question. part a whic…
Part A: A. The poem is divided into three stanzas of equal length. Each is an octave that falls naturally into two parts. Part B: D. It reinforces the orderly progression of the s…
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which of the following represents an element? caco₃ h₂o nacl h₂
$H_2$
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9. quel type de graphique utiliseriez-vous pour montrer lénergie libéré…
B. Graphique à barres
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classify the picture with the correct label. element compound mixture o…
Compound
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classify the picture with the correct label. mixture of elements mixtur…
Mixture of Elements
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what is $h_2so_4$ made up of? 1 hydrogen & 6 sodium 1 hydrogen, 2 sulfu…
2 hydrogen, 1 sulfur, 4 oxygen
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classify the picture with the correct label. compounds mixture of eleme…
Mixture of Compounds
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which of the following is a way in which elements and compounds are sim…
Elements and compounds are pure substances.
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day 4 match the term to its description. 1. solubility a. whether matte…
1. E. Whether or not matter dissolves in water 2. D. The amount of matter in an object 3. B. The amount of space matter takes up 4. C. How well matter allows energy to pass throug…