Chemie
Chemische Reaktionen, Stöchiometrie, Molekülstrukturen und Elementeigenschaften.
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24. complete table 2 below. 2 table 2: electron configurations for sele…
| Element | Spectroscopic (Full) | Shorthand | Last Subshell | Valence Rule Used | |---|---|---|---|---| | Mg | \(1s^{2}2s^{2}2p^{6}3s^{2}\) | \([Ne]3s^{2}\) | \(3s\) | Main - gro…
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at the volume of the rock is 3.0 ml, and the mass in 48 g. what is the …
1. La densidad de la roca es \( 16\ g/cm^{3} \) 2. La masa de la plata es \( 141.75\ g \) 3. La masa del silicio es \( 817.6\ g \)
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malic acid is an organic compound that boosts energy, enhances immunity…
Malic acid content affects the taste of apples.
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chemistry study guide part 1- balance the following equations. also, cl…
1. Balanced equation: \(H_2O_2 ightarrow H_2+O_2\). Classification: Decomposition reaction. 2. Balanced equation: \(3KBr + H_3PO_4 ightarrow K_3PO_4 + 3HBr\). Classification: Doub…
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20. frank lloyd wright: his prairie style integrated buildings with nat…
A. Modern architecture with organic forms
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19. which of these subatomic particles has the smallest mass? nucleus e…
electron
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18. how did the discoveries of thomson and rutherford change daltons at…
Atoms are not indivisible, but they are made up of smaller subatomic particles.
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question 7 2 pts what are the similarities and differences in the inter…
Similar: both covalent Different: electrons are shared unequally in polar and equally in nonpolar
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question 9 4 pts 9. polar molecules are termed: hydrophilic hydrostatic…
Hydrophilic
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module 3 exam cp chemistry a o / module 3: the atom 17. what happens to…
They decay into more stable nuclei. They emit radiation. Their mass decreases by 50% with each half - life.
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module 3 exam cp chemistry a 0 / module 3: the atom 16. which statement…
The protons and neutrons are located in the nucleus, and the electrons are located in the space surrounding the nucleus.
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7. you mix sugar in water and stir until its completely dissolved. in t…
solvent; solute; solution
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15. which statements correctly describe atoms? select all that apply. e…
Invisible matter is made of atoms, Atoms have mass.
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14. how are the isotopes of an element different? their mass numbers ar…
Their mass numbers are different.
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2. set your full cup in the tin container. 3. use the dropper to add dr…
True
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question 6 4 pts 6. what is the difference between an ionic and covalen…
In an ionic bond, one atom accepts electrons from the other; in a covalent bond, a pair of atoms share electrons.
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13. how many neutrons are in a fluorine atom with an atomic number of 9…
8 (the fourth option)
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1. measure 10 ml of water into both the glass and plastic graduated cyl…
adhesion and cohesion, due to the liquids attractive forces to the container or to itself
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cohesion: water molecules sticking to each other, caused by the attract…
Hydrogen bonding between the slides make them hold together.
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9. how many protons, neutrons, and electrons are in uranium - 235 with …
92 protons, 92 electrons, 143 neutrons
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8. according to daltons atomic theory, which statement is true? all mat…
All matter is made of atoms.
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6. which statement is one of the postulates in daltons atomic theory? a…
Compounds are formed when atoms of an element combine with other atoms in whole number ratios.
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what is the formula for nitric acid? hno₃ h₃n hno hno₂
$HNO_{3}$
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bonds? yes when hydrogen atoms covalently bonded to nitrogen (n), oxyge…
First blank: Polar molecules Second blank: Nonpolar molecules
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what is the formula for nitric acid? hno₃ h₃n hno hno₂
$\ce{HNO_3}$
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what is the formula for sulfuric acid? h₂so₃ hso₄ so₂ h₂so₄
$H_{2}SO_{4}$
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what is the formula for chloric acid? hclo hcl hclo₃ hcoh
\(HClO_3\)
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4. what is emitted during gamma emission? helium nuclei electromagnetic…
electromagnetic radiation
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is caring\ and that helps me remember that by sharing electrons, two or…
2 Hydrogen atoms and 1 Oxygen atom
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what is the formula for acetic acid? hc₂h₃o₂ hcoh hcl hac
\(HC_2H_3O_2\)
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what is the name for an aqueous solution of hc2h3o2 or ch3cooh? acetous…
acetic acid
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elements and compounds. examples of elements we find in the ocean inclu…
protons: positive charge; electrons: negative charge; neutrons: neutral
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2. use the data in this table to determine the atomic mass of copper. 6…
63.55 u
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snc2p chemistry name: chemical reactions worksheet colors: a = red, b =…
\(P + O_2 ightarrow P_4O_{10}\): \(S\) \(Mg + O_2 ightarrow MgO\): \(S\) \(HgO ightarrow Hg + O_2\): \(D\) \(Al_2O_3 ightarrow Al + O_2\): \(D\) \(Cl_2+NaBr ightarrow NaCl + Br_2\…
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3. name each isotope and write it in symbolic notation. a. atomic numbe…
a. Iron - 56, \(\ce{^{56}_{26}Fe}\) b. Copper - 64, \(\ce{^{64}_{29}Cu}\) c. Chlorine - 37, \(\ce{^{37}_{17}Cl}\)
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1. which subatomic particle is negatively charged? nucleus proton neutr…
electron
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life. to begin that stuc ist look to the atom and b way up from there. …
If atoms are like little legos then compounds are like car built out several of those little legos.
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oxygen is the gas that humans breathe in. it is also the gas that plant…
Sulfur (S), Selenium (Se), Tellurium (Te), Polonium (Po) 3.
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in the equation $c_1\times v_1 = c_2\times v_2$, $c_1$ represents the _…
initial concentration
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graduated cylinders and graduated pipets are designed to measure _____ …
a range of
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a meniscus is the curve that forms at the surface of a liquid. true fal…
True
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vygotsky believed that learning primarily occurred through a. schemas f…
C. one’s social interactions with others
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test your knowledge 3 determine the number of significant figures in ea…
- \(50.0\): \(3\) - \(50.\): \(2\) - \(5.0\): \(2\) - \(500\): \(1\) - \(005\): \(1\) - \(0.005\): \(1\) - \(5.00\times 10^{-1}\): \(3\)
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which of the following best describes the result of using a catalyst in…
The reaction is completed in a shorter amount of time.
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match each si base unit to the appropriate measurement. • mass • temper…
- Kelvin (K) - Temperature - Kilogram (kg) - Mass - Meter (m) - Length - Mole (mol) - Amount of substance - Seconds (s) - Time
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which of the following properties of water explains its solver kinetic …
Polarity of water molecules
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which element or elements are unbalanced in this equation? fe₂o₃ + 3co …
Only the Fe is unbalanced. ### Second Question
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nitrogen gas is an extremely stable molecule because its structure reso…
Triple covalent bonds
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what does the law of conservation of mass state? mass can be destroyed …
Mass cannot be created nor destroyed in a chemical reaction. # Question 2
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which of the following is the atomic number of an atom that has 12 prot…
12
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4. what is the main difference between a beaker and a graduated cylinde…
C. A beaker is for mixing/holding, a graduated cylinder is for accurate measuring ### Question 5
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ich of the following summarizes a change that takes place as a solid tu…
Particles become less ordered.
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what is the name of this binary molecular compound? co carbon oxide cal…
carbon monoxide
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what is the formula of this binary molecular compound? disulfur decaflu…
\(S_{2}F_{10}\)
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what is the formula of this binary molecular compound? dinitrogen pento…
\(N_2O_5\) (the third option in the given choices)
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which of the following is correct regarding the ph scale? a substance w…
A substance with a pH of 3 is 10 times more acidic than a substance with a pH of 4.
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what is the formula of this binary molecular compound? diphosphorus tri…
\(P_2O_3\) (the third option)
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in a phase diagram, which of the following is the term used for a s gas…
Triple point
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what is the name of this binary molecular compound? so3 sulfur oxide su…
sulfur trioxide
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how many protons and electrons are contained in an atom of element 23?
El elemento con número atómico \(23\) (suponiendo un error tipográfico en el enunciado, ya que no existe el elemento 237; el elemento 23 es Vanadio) tiene \(23\) protones y \(23\)…
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topics for test name/date: 1. laboratory tools and equipment - uses and…
- **Fill in the Blank**: 1. Graduated cylinder 2. Tongs 3. Test tube brush 4. Erlenmeyer flask 5. Tripod stand - **Multiple Choice**: 1. B. Pipette 2. B. Heating samples to high t…
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question 4 (1 point) which of the following correctly gives the correct…
1, 2, 1, 4
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question 4 (1 point) which of the following correctly gives the correct…
\(0.172\space mol\)
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when chemicals in the air impact the weathering of rocks the interactio…
- First question: atmosphere and geosphere - Second question: Biosphere
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question 3 (1 point) fe₂(so₄)₃ is called: iron sulfate iron(ll) sulfate…
iron(III) sulfate
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the relative size of two quantities expressed as the quotient of one di…
A mathematical expression that represents the simplest whole - number ratio of elements in a compound.
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the formula of copper(i) sulfide is: (assume numbers in answer chocies …
Cu2S
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c) write the vsepr formula for the n - atom as the central atom in glyc…
- VSEPR formula for N - atom: \(AX_{3}E\) - Approximate \(C - N - H\) bond angle: \(107^{\circ}\) - Approximate \(O - C - O\) bond angle: \(120^{\circ}\)
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question 1 (1 point) what is the ionic charge of an ion with 13 protons…
\(3+\)
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what is the solubility of cd₃(po₄)₂ in water? (k_sp of cd₃(po₄)₂ is 2.5…
The solubility of $\ce{Cd3(PO4)2}$ in water is approximately $1.6\times 10^{-7}\text{ mol/L}$.
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directions: read each document and use the process of elimination to se…
1. 2. European settlement in North America 2. 3. forming alliances to fight the colonial settlers 3. 3. Government by consent
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what is the solubility of cd₃(po₄)₂ in water? (k_sp of cd₃(po₄)₂ is 2.5…
The solubility of $\mathrm{Cd}_{3}(\mathrm{PO}_{4})_{2}$ in water is approximately $1.6\times 10^{-7}\space mol/L$.
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what is the solubility of pbf₂ in water? (ksp of pbf₂ is 3.6 × 10⁻⁸)
The solubility of $\mathrm{PbF}_{2}$ in water is $2.1\times 10^{-3}\space mol/L$.
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identify the subatomic particle that is found in the outer shell of an …
A. Electron
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what is the solubility of mgco₃ in water? (ksp of mgco₃ is 3.5 × 10⁻⁸)
The solubility of $\ce{MgCO3}$ in water is $1.87\times 10^{-4}\space mol/L$.
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the solubility of ni₃(po₄)₂ in water at a particular temperature is 8.0…
$3.5\times 10^{-14}$
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5. vinegar, a common household item, is used in cleaning, cooking, baki…
40.0%
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the solubility of ag3po4 in water at 25°c is 4.3×10⁻⁵ m. what is the ks…
\(K_{sp}=9.2\times 10^{-17}\)
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how many molecules are there in one mole of barium chloride? clear all …
\(6.02\times 10^{23}\) (corresponding to the option \(6.02\times10^{23}\))
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the solubility of ag3po4 in water at 25 °c is 4.3 × 10^-5 m. what is th…
\(K_{sp}\) for \(\ce{Ag3PO4}\) is \(1.2\times 10^{-16}\)
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the solubility of ag3po4 in water at 25 °c is 4.3 × 10^-5 m. what is th…
$9.2\times 10^{-18}$
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3. a compound has the empirical formula of ch₂o. what is the molecular …
\(C_{6}H_{12}O_{6}\)
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2. most gas grills use propane gas. the formula for propane is c₃h₈. wh…
C. I and II
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1. directions drag and drop the correct answer choice to each answer bl…
First box: \( 44.01 \), Second box: \( \text{g/mol} \)
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determine the value of ksp for cu(io₃)₂ by constructing an ice table, w…
$K_{sp}=\frac{[2.7\times 10^{-3}][5.4\times 10^{-3}]^{2}}{[0]} = 7.9\times 10^{-8}$
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multiple - choice question the process where water is changed from a li…
Evaporation
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which is the correct name for p₂o₅? diphosphorus pentoxide phosphorus p…
A. diphosphorus pentoxide
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which compound does h₂so₄ represent when in an aqueous solution? hydrog…
sulfuric acid
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multiple - choice question water in the gas form is called? water water…
water vapor
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which is an iupac name for a covalent compound? zinc monophosphate carb…
carbon dioxide
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question 3 of 24 determine the value of ksp for cu(io₃)₂ by constructin…
The \(K_{sp}\) value for \(Cu(IO_{3})_{2}\) is approximately \(7.9\times 10^{-8}\).
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5 - 26 physical science 1 omenclature of covalent compounds which is th…
sulfur trioxide
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which is the correct formula for phosphorus pentachloride? pcl₄ because…
C. \( PCl_5 \) because a subscript of 5 indicates five \( Cl \) atoms.
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what is the maximum concentration of ni²⁺ that can be added to a 0.0074…
\(1.76\times 10^{-5}M\)
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based on the name, which substance is a covalent compound? dinitrogen p…
dinitrogen pentoxide
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what is the maximum concentration of ag+ that can be added to a 0.00780…
\(3.22\times 10^{-5}M\)
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which formula correctly represents antinomy trichloride? sbcl₂ sbcl₃ sn…
SbCl₃
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which is the formula for nitrogen trihydnde? 3nh n₃h nh₃ n₃h
NH₃
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which is the formula for iodine tribromide? ibr₃ ib₃ ibr i₃br
\( IBr_3 \)
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which is the iupac name for no? nitrogen monoxide binitrogen oxide dini…
nitrogen monoxide