What observations did Antoine Lavoisier make? What law did he formulate?

Q: What is the difference between a law and a theory?

A: The difference between a law and a theory has to be given.

Q: You find a solid material and you want to find the identity of this sample. You measure the mass of…

A: Mass of the sample is 52.635 g. Volume of water is 466 mL.

Q: The following diagram represents a chemical reaction in which the red spheres are oxygen atoms and…

A: a) In the left box, there are two type of molecules, one is oxygen (O2) and other is Nitrogen and…

Q: Classify each statement as an observation, a law, or a theory.a. Chlorine is a highly reactive…

A: Observations are based on the experiments performed. Law is a statement obtained from the…

Q: If 26.98 grams is the mass of 1 mole of Aluminum, 26.98 grams =1 mole of Al 13.49 grams = 0.5 moles…

A: Mole concept relates the number of moles with the molar mass and mass of the substance. Just like…

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: Examples: CCO, + HNO, → Zn(NO,)2 + Na,PO, → Practice: AGNO, + NaCI > HCI + AGNO, → Na,SO, + BaCl, →

A: Given :-  CaCO3 + HNO3 →  Zn(NO3)2 + Na3PO4 →  AgNO3 + NaCl →  HCl + AgNO3 →  Na2SO4 + BaCl2 →…

Q: e mass of 1

A:

Q: Discuss the difference between theory and scientific law

A: Theory: The plausible explanation which is given for various kinds of phenomenon, event or behaviors…

Q: 1B3 uhat is after bal Pb Cs). 3.

A: When the same number of each element is represented on the reactant and product sides, then the…

Q: Chapter 1 em 13 13 Part D A pound of coffee beans yields 60 cups of coffee (4 cups = 1 qt). How many…

A: Given that one pound of coffee beans yields 60 cups of coffee.  The conversion of pound to gram…

Q: Fill in the following: What are the mechanisms?

A: 1.The reaction mechanism can be given as follows:The product formed is Markovnikov’s product, as the…

Q: Highlight the five significant contributions of Robert Boyle, Antoine Lavoisier, and John Dalton to…

A: Robert Boyle was born on 1 Jan 1627. He was a scientist with outstanding experimental skills. He was…

Q: Arrange each group in or-der of increasingstandard molar entropy (S°). Explain

A: Entropy is the major of disorderness or randomness.so a gaseous species will have more randomness or…

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: d. AIC13(aq) e. KHS(aq) f. (NH4);C2O4(aq)

A:

Q: What is the term for the modification of a substance that does not alter its chemical composition?…

A: Chemical change: In chemical change composition of the substance changes. When bonds are broken and…

Q: What are the three fundamental laws of chemistry?

A: The laws of chemical combinations are the fundamental laws of chemistry.

Q: what is the volume of water measured with a Beaker Beaker mass= 110.00g water mass= 45.00 water +…

A:

Q: 3. Carefully put an egg in a glass half filled with vinegar. Replace the vinegar on the second day.…

A:

Q: JJ Thomson is credited with the discovery of

A: J J Thomson, in full Sir Joseph John Thomson, (born December 18, 1856) is English physicist who…

Q: A volatile liquid (one that readily evaporates) is put into a jar, and the jar is then sealed. Does…

A: To study the nature of volatile liquid when placed in a closed system

Q: True or false: When forming conclusions from an experiment, the researcher should compare the…

A: Que 1 :  Answer : TRUE Reason : During research process, Initial hypothesis is always taken into…

Q: Complete each of the following equations:

A: The complete reactions are given below -

Q: 1.NABH4 ? с) 2. Нао co,C2H5 1. Hg(OAc)2/THF/H2O ? d) 2. NaBH,ГОН

A:

Q: 1LDA 2) 10. Br OH GMH,SO,/A NH2 11. NH2 12.

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Una masa de mercurio ocupa 0.750 L Qué volumen ocuparia una masa igual de etanol? La densidad del…

A: Note - Since you have asked multiple question, according to our policy, we are supposed to solve…

Q: H* a H. HO Cl2 b XS CH4 hv 1. NaBH4 2. NH,CI(aq) H2 d Pd

A: Organic Reactions.

Q: What was Dmitri Mendeleev’s major contribution to the field of chemistry?

A: Dmitri Mendeleev is a chemist born in Siberia and has great inventions in the field of science. He…

Q: Explain the main goal of chemistry

A: Chemistry is the science that investigates the properties of matter by examining the atoms and…

Q: that reads 452 g. How much sample is left after half an hour? 5.00 g 90.4 g 14.1 g 75.3 g

A:

Q: po, EXEI, UNuvijUEI OWUTU. = 192 g νερό. τάση για εμπέδωση Τι σημαίνει η έκφραση: cυδατικό διάλυμα…

A: 1. 3% aqueous sodium chloride means there is 3g of NaCl in 100g of water.

Q: (d) Sb + He → I + ? 121 124 (e) 241 Am +'B → 4¿n+? 95 3° Cf + ? → 103L + 3 ¿n 259 98

A: Complete the following nuclear reaction ---

Q: a. Sns) + 2Cu°(aq) → Sn + 2C45) (ag) b. Mgs) + Pb"aq) Pb + Mg > (aq) c. 2MN2 + 8H;Om + 10Hg²"(aq) -…

A:

Q: A pure sample of compound X contains only carbon and oxygen in a mass ratio of 0.750 g C : 1.00 g O.…

A: A pure sample of compound X contains only carbon and oxygen in a mass ratio of 0.750 g C: 1.00 g O.…

Q: Fill in the blanks for the table given below: [H+] [OH-] pH РОН 4.2 x 105 A B D 6.8 x 107 E F G H…

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Q: 3 Carefully put an egg in a glass half filled with vinegar. Replace the vinegar on the secohd day.…

A:

Q: 8.W 8 What

A: It is C. The reaction rate is halved

Q: Perform the following calculations and round your answer with the correct number of sig figs: a.…

A: In cases of multiplication and division, count the number of significant figures in each given…

Q: Classify each statement as an observation, a law, or a theory. a. Chlorine is a highly reactive gas.…

A: The given statements are classified as an observation, a law or a theory has to be given.

Q: a. pH = 4.5 %3D b. pH 13.1 C. pH = 7.0 %3D d. pОH %3D 1.0 e. РОН 3D 9.2 f. [H*] = 3.4 x 10$ M g. [H]…

A:

Q: Why are the chemical elements important in the Big history story?

A: A chemical element, also called an element, is anything that can decompose into simple substances…

Q: True or false: When forming conclusions from an experiment, the researcher should compare the…

A: According to atomic theory matter is composed of particles known as atoms.

Q: A) Ag,SO.(aq) + NaCl(aq) - NaSO,(aq) + AgCI(s) B) Ag,SO.(aq) + NaCI(aq) → Na,SO.(aq) + 2A9CI(aq) C)…

A: Both the questions you posted are the same.

Q: In simple terms, what is the difference between a theory and a law

A: Theory and laws are interrelated . Law  According to science , law is generalised statement  based…

Q: In a reaction, 33.4 g of chromium(III) oxide reacts with 11.9 g of aluminum to produce chromium and…

A: The reaction taking place is between chromium (III) oxide i.e Cr2O3 and aluminium i.e Al to produce…

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: 3. 4. 6 7. 10 11 12 13 14 15 16 17 18 1A 2A 3A 4A SA 6A 7A SA He 1.008 4.003 3. 4. 9. 10 Li Be C N F…

A:

Q: Describe the law of conservation of mass? Give an example?

A: The Law of conservation of Mass was given by Antoine Lavoisier. It is used as the fundamental law to…

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.