Answer = B
In conservation of mass ,
Mass of recatant = Mass of product
Mass of C + mass of O2 = mass of co2
3 g + 8g =11 g
which observation illustrates the law of coservation of mass? Which observation illustrates the law of conservation...
which observation illustrates the law of coservation of mass? Which observation illustrates the law of conservation of mass? The C:O mass ratio of one compound is exactly double that of another compound. When 3 g of carbon reacts with 8 g of oxygen, 11 g of carbon dioxide is produced. The C:O mass ratio of a particular compound is the same, regardless of the size or source of the sampl O Burning 10 g of propane produces twice as much...
Use the law of conservation of mass to answer the questions. Consider a hypothetical reaction in which A and B are reactants and C and D are products. If 13 g of A completely reacts with 21 g of B to produce 18 g of C, how many grams of D will be produced? A 3.6 g sample of sodium hydrogen carbonate is added to a solution of acetic acid weighing 10.1 g. The two substances react, releasing carbon dioxide...
Calculate the mass ratio of one element to the other for the first sample. Then repeat for the second sample. Chapter 1 Adaptive Follow-Up For Practice 1.1 Constants Periodic Table Two samples of carbon dioxide decompose into their constituent elements. One sample produces 52.8 g of oxygen and 19.8 g of carbon, and the other sample produces 17.1 g of oxygen and 6.40 g of carbon. Show that these results are consistent with the law of definite proportions
2.1 MULTIPLE CHOICE 1) Which element has the chemical symbol, P? Al lead B) phosphorus platinum D) potassium to water is formed if 3.2 of methane reacts with 12. Me react to form carbon code and water. What of open to produce 3.3 o carbon dioxide? A1724 14.88 DJ 160 3) Which of the following two whom we stopes? 2.2 OTHER QUESTIONS (Fill in the blank, TRUE or FALSE and calculations) On and Complete the sentences in questions and using...
The great French chemist Antoine Lavoisier discovered the Law of Conservation of Mass in part by doing a famous experiment in 1775. In this experiment Lavoisier found that mercury(II) oxide, when heated, decomposed into liquid mercury and an invisible and previously unknown substance: oxygen gas. 1. Write a balanced chemical equation, including physical state symbols, for the decomposition of solid mercury(11) oxide (Hgo) into liquid mercury and gaseous dioxygen. 2 HgOG) - 2Hg() + O2(g) x 5 ? 2. Suppose...
9) What is the total number of atoms in 0.139 mol of Fe(OH263-? A) 19.0 B) 2.64 98.37. 1022 D) 1.59. 1024 E) 184. 1024 10) How many carbon atoms are there in 52.06 g of carbon dioxide? A) 8.648.10-23 B) 3.134 x 1025 C) 7.122 1023 D) 5.206 X 1024 E) 1.424 . 1024 11) A nitrogen oxide is 63.65% by mass nitrogen. The molecular formula could be A) NO B) NO2 CN204 D) N20 E) either NO2 or...
Please help me. I’m so confused QUESTION 1 The mass of carbon present in 1.000 g samplies of each compound The mass of axygen present in 1.000 g samples of each compound The ratio of the mass of a carbon atom to that of an oxygen atom . The mass of oxygen contred with 1.000 g of carbon in each compound QUESTION 2 all atoms have nuce all atoms have electrons isotopes of a given element differ only in mass...
1. Moles of Reactant to Mass of Reactant: Identify the iodide ions and ozone in the balanced chemical equation. Use mole ratio, then convert to grams. A method used by the EPA for determining the ozone concentration in the air is to pass an air sample through a bubbler containing iodide ions. The iodide ions remove the ozone according to the following reaction: O3(g) + 2 I-(aq) + H2O(l) → O2(g) + I2(aq) + 2 OH-(aq) How many grams of ozone...
30. Which of the following is not true about the electromagnetic spectrum? a. ultraviolent light (UV) has a shorter wavelength than does visible light b. the energy of a wave is continuous c. the energy of a wave is proportional to the frequency d. The energy of a wave in inversely proportional to the wavelength True/false 31 The shape of a molecule influences the amount of radiation that can be absorbed 32_ __Carbon atom always forms four bonds 33___Water vapor...
CHE115 Tear this page out of your laboratory manual Name: our laboratory manual and submit it to your TA with your answers Zinc reacts with lodine in the fixed mass ratio of 1 gram of zinc to ne, how many grams of iodine are required to completely react with B. Post-Lab Assessment Questions: (32 pts) 1. (4 pts) Given that zinc reacts with i 3.88 grams of iodine, how many grams of 4.2 grams of zinc? You must show your...