ᴀᴄᴛɪᴠɪᴛʏ ₄: ᴅᴇꜱᴄʀɪʙᴇ ᴍʏ ꜱᴛʀᴜᴄᴛᴜʀᴇ ᴅᴇᴇᴘᴇʀ! ᴅɪʀᴇᴄᴛɪᴏɴꜱ: ʀᴇᴀᴅ ᴀɴᴅ ᴀɴꜱᴡᴇʀ ᴛʜᴇ ꜰᴏʟʟᴏᴡɪɴɢ Qᴜᴇꜱᴛɪᴏɴꜱ: ₁. ᴡʜᴀᴛ ᴀʀᴇ ꜱᴛʀᴜᴄᴛᴜʀᴀʟ ɪꜱᴏᴍᴇʀꜱ? ₂. ʜᴏᴡ ᴀʀᴇ ᴛʜᴇ ꜱᴛʀᴜᴄᴛᴜʀᴀʟ ɪꜱᴏᴍᴇʀꜱ ᴅᴇʀɪᴠᴇᴅ? ₃. ᴅʀᴀᴡ ᴛʜᴇ ɪꜱᴏᴍᴇʀꜱ ᴏꜰ ʜᴇxᴀɴᴇ. ₄. ᴅʀᴀᴡ ᴛʜᴇ ɪꜱᴏᴍᴇʀꜱ ᴏꜰ ʜᴇᴘᴛᴀɴᴇ

Q: In developing the concept of electronegativity, Pauling used the term excess bond energy for the…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 1.008 4. He 4.003 10 Be 6.941 9.012 LI B C N 10.81 12.01 14.01 16.00 19.00 20.18 15 F Ne 11 12 13 14…

A:

Q: Zn+ 2Au(CN)2 → Zn(CN)4+ 2Au What mass of gold would you expect to recover from 2.50x105 gr

A: Zn+ 2Au(CN)2 → Zn(CN)4+ 2Au2 mol  Au(CN)2 produces  2 mol Autherefore,2 g ×Au(CN)2 produces = 2 g…

Q: A penny has a mass of 2.50g and the Moon has a mass of 7.35x10^22kg. What is the mass of 1 mole of…

A: Given,

Q: Question 34

A: Mixture: Combination of two or more different materials in a way that no chemical reaction occurs.…

Q: Can you help me answer the following questions: 1. What is the mass of hydrous copper sulfate? 2.…

A: (1) Given compound name,         Hydrous copper sulfate

Q: A typical "lead" pencil is actually made from carbon. If the carbon in the pencil weighs 1.50 gram…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: . What is the 3rd most prevalent element in the human body (name, not symbol)?

A:

Q: 6. Fe + C12 FeC13 7. Fe + 02 - Fe203 8. N2 + 02 - N205 9. N2 + H2 NH3 10. NH3 + 02 - N2 + Н20

A: We can balance the chemical equations by counting each elements in reactants side and product…

Q: While cleaning your attic, you found your old rock collection. If 83.58% of the rocks have a mass of…

A:

Q: . While cleaning your attic, you found your old rock collection. If 83.58% of the rocks have a mass…

A: well, it is given that, the weight of percent of rock. hence we can calculate the average weight of…

Q: 16) A 0.0758-g tungsten filament 17) A 1.50-g silver coin 18) A 60.0 g sample of FeCl3

A: Given that : We have to calculate the number of moles contained in each of the following samples :…

Q: Draw the product formed in each reaction.

A: The product formed in the given reaction

Q: 3+(aq) +3 e Al(s) E° = -1.676 V %3D 2+(aq) + 2 e Zn(s) E° = -O.763 V %3D

A: Ecell for the given reaction is

Q: 35 34.9689 75.77 Chlorine 37 36.9659 24.23

A: Atomic mass is the mass of an atom. Atomic mass is sum of protons and neutrons.

Q: A bottle of sodium hydroxide (NaOH) was found to contain 1.23 lb of this chemical. Express the…

A: The conversion factor can be described as the numerical factor that is used to convert one set of…

Q: 2) Ar0, H201D 1) CH3I, cx cess,

A:

Q: A) N2 + H2→__ NH3 5-- --- B) KCIO3 → KCI + 02 51- - C) NaCl + F2→ NaF + Cl2 D) C3H18 + CO2 + H20 ---…

A:

Q: how many mm3 are in 16.7 cm3?

A: We know,  1 cm3 = 1000 mm3  Given, 16.7 cm3

Q: what is the mass in grams of 125 iron atoms?

A: Given that: Number of iron atoms = 125 Atomic mass of iron =  55.845 g/mol

Q: 3g. 2Fe203 + 3C ----> 3CO2 + 4Fe 3h. Fe2S3 ----> 2Fe + 3S 3i. 2KI + Pb(NO3)2 · ----> 2KNO3 + Pbl

A:

Q: Supposed to magnesium feelings and sulfur or heat it so they react with each other forming magnesium…

A: Concept: The pure substances have constant composition throughout the given substance. The mixed…

Q: A sample of stainless steel contains 10.5% chromium by mass. What mass of chromium, in grams, is…

A: Given information,             Stainless steel sample contains 10.5% chromium by mass.…

Q: a. b. C. d. 'Н CI 1. BULI, -70 °C to +20 °C 2. H₂0 1. BuLi, -70 °C to +20 °C 2. H₂0 NMe2 OMe NH3 NH3…

A:

Q: Volume of DNA crystals is 0.144 nm^3 what is the volume in milliliters

A: Given: Volume in nm = 0.144 nm3

Q: 1. What are the two figure all about?? 2. What chemical symbols do you see in both figures?? 3.…

A: It is given that two figures A and B are drawn for a molecule,

Q: 6419.012 10 B 11 12 Na Mg 22.99 24.31 20 Na 10.81 12.01 14.01 16.00 19.00 20.18 13 14 15 16 17 13 Al…

A: Given : 2KI+Pb(NO3)2→PbI2+2KNO3 Mass of yellow solid produced (PbI2)=3g To Find: Mass of KI produced…

Q: He H 1.008 4.003 10 B C N O F Ne Li Be 6.949012 11 12 10.81 12.011 14.007 15.999 18 998 20.180 13 14…

A: Answer is option B and C  CH4<PH3<H2S  HSO3-<H2SO3<H2SO4

Q: 1 2 4. 10 11 12 13 14 15 16 17 18 1A 2A 3A 4A SA 6A TA BA He 1.008 4.003 4. 9. 6. 10 Li Be B. 10.81…

A:

Q: C;H,O2 20 1 30 3H t 8.04 1H,s J=7 4 20 2H.9 J=7 3 2 PPM 6.

A:

Q: How many sigfigs does this number have 0.021?

A: Rules:- All non-zero digits are significant. Zeros between non-zeros are significant. Trailing…

Q: Complete each of the following equations:

A: The complete reactions are given below -

Q: Co S04 504 Ba Soy 2504 Na 2504

A: As I can see that all the five examples you asked are sulphates. The solubility of sulphates in…

Q: White sand is made of silica (silicon dioxide, or SiO2), which has a density of 2.20 g/cm³. How many…

A:

Q: H Не 1.008 4 Li Be 4.003 6 B CN oF Ne 10.81 12.011 14.007 15.999 18.998 20.180 13 10 5.94 9.012 11…

A: Identify the correct relationship of the following---

Q: Part F The compound iron chloride can exist with either iron(II) ions or iron(IIl) ions. Conduct…

A:

Q: { Al/Pb Zn/Mg Al/Mg Fe/Pb Al/Fe Fe/Mg Al/Sn Fe/Sn Zn/Fe Pb/Sn Zn/Sn Pb/Mg Zn/Pb Sn/Mg

A:

Q: If the tax on alcohol is Php 500 per proof gallon, how much tax must be paid on 5 gallons of alcohol…

A:

Q: ~xxx se HS04 (A) ☆ (C) (D) Fasit + 4 #504 gl "ye

A:

Q: An alien from the Planet X uses the units below for mass. How many zigs is 2.5 hums?  3 zigs = 1…

A: There are variety of units that are employed in measurement of mass. These smaller as well as larger…

Q: Taking logarithms and antilogarithms is necessary to solve many chemistry problems. For practice,…

A:

Q: Nitrogen makes up what fraction of the mass of the hum Body? Nitrogen makes up what percentage of…

A: 1.Fraction of Nitrogen in mass of human body  70 kg  of Nitrogen is 1 fraction   2.2 Kg   of…

Q: Run 0.01 0.0005 1 0.001 0.01 0.0025 0.005a2 0.01 0.01 0.005 3 il reg 4 olo 2nirio 0.02 HM oion 0.01…

A: Let assume the reaction is     A+B=C  The meaning of this equation is 1 mol  of A reacts with 1 mol…

Q: 22. Br2 + KI KBr 12 23. Ag + AuCl3 → AgCl Au 24. Mg + CO2 Mg0 + C -> 25. Fe304 Al - Al203 + Fe

A: To get the Balanced chemical equation we have to balance the number of atoms on the both sides of…

Q: t2 = 20.9 Hns typ = 0.603/K k = 0•693 O: 693/20.9 0.693 K = E a.033 br

A: Half life It is the time when the Concentration becomes half of the initial Concentration

Q: Which of the noble gases other than radon would you expectto depart most readily from ideal…

A: Ideal gas equation is given by- P: Pressure of the gas. V: Volume of gas. n: number of moles of…

Q: 1 H 1.008 3 4 Li Be 6.94 9.012 5 7 8 9 BCNO F 10.81 6 24 11 2 He 4.003 14 15 16 10 Ne 12.011 14.007…

A:

Q: In water conversation, chemistry spread a thin certain inert materials over the surface of water cut…

A: Given that: Volume of the inert oil, V = 0.10 mL Area for the oil spreading, A = 42.9 m2 First of…

Q: 2.66 + 4.38 ×10* -1.0835×10 K K JK T -1.2517×10¬ K -2.85 + 6.543×10² K?

A: Now, ∆S298 =2S298oHcl-S298oCl2-S298oH2 ∆S298 =2×186.9-223.1-130.7∆S298 =20Jkmol

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.