Ch 7 2024 ed

Please help

1. A candle is placed on one pan of a balance, and an equal weight is placed on the other pan. What would happen if you lit up the candle and waited for a while?. 2. Suppose the candle was placed in a large, sealed jar that allowed it to burn for several minutes before running out of oxygen. The candle and jar are balanced by an equal weight. In this situation, what would happen if you lit up the candle and waited? Gizmo Warm-up Burning is an example of a chemical reaction. The law of conservation of matter states that no atoms are created or destroyed in a chemical reaction. Therefore, a balanced chemical equation will show the same number of each type of atom on each side of the equation. To set up an equation in the Chemical Equations Gizmo, type the chemical formulas into the text boxes of the Gizmo. First, type in "H2+02" in the Reactants box and "H20" in the Products box. This represents the reaction of hydrogen and oxygen gas to form water. Reactants H2+O2 2. Based on what you…

Can you answer it as if you where putting it in those boxes. Set the equation up

1 of 22 > Line 1 6 - 4 3. Answer Bank Line 1 shows that cogs are inversely proportional to sprockets. Line 2 1 3 5 6 . 7 8 . 6. Line 1 shows that cogs are directly proportional to sprockets. Sprockets Line 2 shows that cogs are directly proportional to sprockets. Line 2 shows that cogs are inversely proportional to sprockets. 13 人tv T W. Cogs 4.

18. Balance the following chemical equation for the stoichiometric combustion of methane with oxygen. ____  CH4(g) +  ______O2(g) ⟶   ______   CO2(g)+  ______H2O(g) What are the coefficients for O2(g) and CO2 (g)?

Ma X ATM HOMEWO X #5112480241329813180832311&eISBN=9781305862883&id=1707785907&snapshotid=33... D21 Grades - X G when doe X References Submit Answer MindTap x G Match ea X Use the References to access important values if needed for this question. Under certain conditions, the substance hydrobromic acid can be broken down to form hydrogen and bromine. ervation of Mass: Macroscopic: This is group attempt 1 of 10 Autosaved at 7:17 PM ☆ If 22.3 grams of hydrobromic acid react to form 0.3 grams of hydrogen, how many grams of bromine must simultaneously be formed? grams bromine Ch.2: Ato- Q Search Regenerat

X H Sofia uustil ailalysIS 6.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molecular molar mass of 44. g/mol, is burned completely in excess oxygen, and the mass of the products carefully measured: product mass carbon dioxide 19.50 g water 10.65 g Use this information to find the molecular formula of X Ar Check Terms of Use Privacy Explanation O 2019 McGraw-Hill Education. All Rights Reserved. 11:14 PM 4x 12/3/2019 17 e 99+ O Type here to search hp end pg u home ins prt sc delete f12 fio fi1 f9 f8 f6 f4 f5 f2 f3 ?

Please answer only the calculation.

_____ As2O5 + _____ H2O → _____ H3AsO4

Table 4.5 (data)Unmelted sample Melted sampleSolution Color_______________ ____________Result of adding AgNO3 to test solution______________ _____________Result of adding NH4SCN to test solution_____________ _____________Result of adding K4Fe(CN)6 to test solution____________ _____________4.6 (report)Test or observation is a composition change indicated?Solution color _________(Yes or no)Addition of AgNo3 _________(Yes or no)Addition of NH4SCN _________(Yes or no)Addition of K4Fe(CN)6 _________(Yes or no)

TheoreticalYield=57.1g Actual=23.9g % Yield = ____________

A student sets up the following equation to convert a measurement.(The ?stands for a number the student is going to calculate.)Fill in the missing part of this equation. Note: your answer should be in the form of one or more fractions multiplied together.

Wellness Faculty Mo Use the following information to answer this question. smoke CO2 + H,0 02 hydrocarbons What type of chemical reaction is represented in the diagram? Select one: O a. a single-replacement reaction O b. No reaction is represented. c. a combustion reaction d. a formation reaction O Smoke Signal.pdf

What are the coefficients, written from left to right, for the following chemical equation? _Fe304(5) + _C(s)→ Fe(s) +_CO2(g) O A. 1, 2, 3, 2 O B. 0, 2, 3, 2 O C. 1,3, 2, 3 O D. 1, 2, 2, 3

all one question, draw products

Need all three plz

I need help understanding how to do this homework question. I've been out sick so I don't even know how to even begin to attempt this question.

Limiting Reactants 111 of 147 Constants Penodic Table The octane rating of gasoline is a relationship of the burning efficiency of the given gasoline mixture to the burning efficiency of octane (Cs H1s). Like most hydrocarbons, octane reacts with oxygen gas to produce carbon dioxide and water. The unbalanced equation for this reaction is Determine the balanced chemical equation for this reaction. C's H18 (g) + O2 (g)→CO2(g) + H20(g) Enter the coefficients for each compound in order, separated by commas. For example, 1, 2,3,4 would indicate one mole of Cg H18, two moles of O2, three moles of CO2, and four moles of H O. C&His(g)+ O2(g)→CO2(g) + H2O(g) > View Available Hint(s) UNLEADED 2,25,16,18 2.23 0204 EXITI Previous Answers v Correct It is important to balance a chemical equation before using it for calculations Checking that equations are balanced will help you avoid many errors in chemistry problems Balanced chemical equation 2 CsHis(g) + 25 O2 (g)-→16 CO2 (g) + 18 H2O(g) Part B 0…

* 00 Balance the following equation by writing the coefficient for BF3( g). B203( s) + HF(1) - BF3(g) + H20( 1) IIO %2# %24 & % n d f alt ctrl

What series of steps are required for this conversion

ity 7 Problem-Solving! ctions: Show your solution in the space provided. Follow the GFFSA (Given, Find, omula, Solution, Answer) format if possible. Write your answers in the space provided. (5 points each) 1. Combustion of hydrocarbons like methane (CH4) produces two products, water (H2O) and carbon dioxide (CO2). Consider the chemical equation of this combustlon: CH4 + 2 02- CO2 + 2 H20, when 4 mol of CHa reacts with 4 mol of O2, how many moles of CO2 are formed? What is the limiting reactant? 2. How many grams of lead II chloride are produced from the reaction of 16.2 g of NaCl and 62.0 g of Pb(NO3)27 What is the limiting reactant? How much excess is left over?

I know how to do the equation,  But no matter how I set it up in Chem 101 it says it's not correct. Please help!

This is my data. Could you help me to find the theoretical yield of acetylsalicylic acid in moles and grams. Also Theoretical yield of dry product as well?

please helllppp

two partners were trying to solve the equation. Penny Said that the equation is balanced because there is only 1 Fe on both sides of the equation. But Alex disagrees. Who is correct and why? Write the CER to explain your answer. claim: Evidence: Reasoning

The combustion of ammonia in the presence of excess oxygen yields NO2 and H2O:4 NH3(g) + 7 O2(g) à 4 NO2(g) + 6 H2O(g)The combustion of 28.8 g of ammonia consumes __________ g of oxygen. please explain the step by step procedure

Table 5.5 (data)Sample tested Add HCl Add NH 3Solid CaCO 3 _______ ________Solid CuSO 4 _______ ________Mixture _______ ________Filtrate _______Solid from funnel _______Table 5.6 (report)Identity of water-soluble solid ______Identity of insoluble solid_______

g. h. wit $ Ph Br li NaOCH, CH₂OH (cold, short time) 1. LDA 2 Br OCH₂ & 1. NaOCH₂ CH₂OH 2. BrCH₂CH₂CH₂ 3. H+, H₂O, heat 1. PPh 2. BuLi 3. NaOEt OEt EtOH NaOCH, CH₂OH (warmup, long time)

0日 0 5. Put this equation into word form. Rb+ P Rb3P rubidium plus potassium forms rubidium potasside rubidium and potassium react to form rubidium potasside rubidium and phosphorus react to form rubidium phosphide rubidium combined with potassium forms rubidium phosphide PREVIOUS 5 of 5 SAVE & EXIT esc #3 2$ & 6. 7

6. Determine the stoichiometric coefficients (a, b, c, d, e) of the following reaction: aH₂S + bHNO₂ → cN₂ + dH₂SO4 + eH₂O Answer: H₂S + * The coefficients must be integers. HNO₂ → N₂ + H₂SO4 + H₂O