As the nylon thread is pulled out of liquids in the beaker,the measured mass of the liquids in the container decreases.Explain why in terms of atoms

Q: If 1.00 g of gray zinc powder reacts with 0.49 g of yellow sulfur powder, what is the mass of the…

A: Given : Mass of gray zinc powder = 1.00 g Mass of  yellow sulfur powder = 0.49 g Mass of ZnS = ?

Q: In today's laboratory you are going to mix elemental copper and elemental sulfur to form a…

A: molar mass of Copper = 63.55 g/mol The relation between the mass of a substance and the number of…

Q: When burning 180 g of glucose in the presence of 192 g of oxygen, water and carbon dioxide are…

A: Given that : Mass of glucose = 180g Mass of oxygen = 192g Mass of water = 108g Carbon dioxide…

Q: If a certain mixture contains 29.3027% water, how many grams of water are contained in a 12.2576…

A:

Q: Use the following terms to complete the statement: 6.02 x 1023 molecules 6.02 x 1023 atoms 4 atoms…

A: One mole of an element contain Avogadro's number 6.02×1023 of atoms of that element. Therefore, 1…

Q: For a sample consisting of 258.49 × 1023 molecules of methane, CH4, calculate

A: Given: no of molecules = 258.49 x 1023 moleculesWe know that,1 mol contain =NA= 6.023 x 1023…

Q: The mass of silver in a 9.000 g of silver chloride,AgCl is ?

A:

Q: A hydrate initially weighs 5.821 grams and is heated. After heating it weighs 3.331 grams. Assuming…

A: •Here given weight of hydrate initially :-             W1 =5.821 gm  •Weight after heating:-…

Q: why is the arrangement of the constituent atoms or molecules more important in determining the…

A: Three state of matter solid , liquid and gas. The arrangement of atoms or molecules in the lattice…

Q: What is Kc?

A: Interpretation: The information about Kc is to be provided.

Q: A chemist has two different gasohol mixtures available. One contains 20% alcohol and the other 12%…

A:

Q: 200 g of a silicon compound is decomposed, resulting in 41 g of solid silicon and the remainder of…

A: Calculate the number of moles of both the compounds. nSiClF3 = WSiClF3MSiClF3nSiClF3 =200 g120.5…

Q: How many moles of CO2 are in 3.13 grams of CO2? Express in decimal form.

A: Given that: Mass of CO2 = 3.13 g Moles of CO2 = ?

Q: in her pocket for a few hours. When she took out the chocolate bar to eat it, the bar was was no…

A: Given, examine the state of the chocolate bar in the morning and then in the evening.

Q: what is the percent by mass of sugar in a mixture that contains 157 g of salt, 1.215 kg of flour and…

A: Given, mass of salt = 157 g Mass of flour= 1.215 Kg 1 Kg = 1000 g 1.215 Kg = 1.215 x 103 g Mass of…

Q: Convert to particles : 38.1 g iron (III) chloride to atomic mass units (amu)

A: Please find your solution below : Atomic mass unit is defined as 1/12 th of mass of unbound neutral…

Q: Use the equation to answer the questions. Round both answers to nearest whole number. Y = 51.75 1.25…

A: •Given:-    Y = 51.75 - 1.25 X •Here we have to calculate value of X for given values of Y.

Q: What are the names of the fundamental laws which explain the properties of massand define one of…

A: Answer -  The names of the fundamental laws which explain the properties of mass - 1.The law of the…

Q: I was looking over and was doing calculations so I could understand and no offense but shouldn't the…

A:

Q: A chemist has a 19.50g sample of drinking alcohol (ethyl alcohol). what is the volume ogf the…

A: The relationship between mass and volume is given below.

Q: Calculate the number of moles in and the mass of an 6.24 L sample ammonia, NH3, measured at standard…

A: Here, we have to calculate the number of moles in and the mass of a 6.24 L sample ammonia, NH3,…

Q: Portland cement contains 61 % calcium oxide. Calculate the mass of calcium oxide and the mass of the…

A: One ton is equal to 907.185 kgs.The conversion factor is  (1ton/907.185 kgs )  or  (907.185…

Q: An unknown compound has the following chemical formula: NxO where  x  stands for a whole number.…

A:

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

A: Number of moles of a chemical compound is used to measure the amount of compound in the given…

Q: 1. A student measured a 6.790 g sample of a hydrated salt. After heating, the mass of anhydrous salt…

A: a. Given that weight of hydrated salt is 6.790 g and mass of anhydrous salt is found to be 4.501 g.…

Q: The combined mass of the flask, stopper, calcium chloride solution, test tube, and sodium sulfate…

A: Given:  Combined mass of the flask, stopper, calcium chloride solution, test tube, and sodium…

Q: What are the proper units for molar mass in chemistry? O kg/cm O g/mL g/mol

A:

Q: What percent by mass of iron(II) phosphate is iron?

A: The molecular formula of Iron(II)phosphate is Fe3(PO4)2. Percentage by mass of any component can be…

Q: The scuba tank of oxygen gas weighs about 16 kg. How many atoms of oxygen gas (O2) are there in the…

A: Molar mass of oxygen gas(O2) is 32 g/mol

Q: A hydrated compound with a mass of 7.00g is heated. Its mass after heating is 5.63g. What is the…

A:

Q: A chemist needs 1.25 moles of sugar to dissolve in 1 liter of water. How many grams of sugar will…

A:

Q: what is the mass of calcium carbonate reacted?

A: Given, Mass of marble before reaction 3.0g Mass of marble after reaction 1.8g

Q: How much does 8.44 x 1063 molecules of water weigh?​

A: Molecular weight of water =18g/mol i.e. 1  mol of water (6.023 x 1023 molecules) of water has mass…

Q: A 12.5g sample of a hydrate of calcium chloride is found to contain 3.06 g of water. what is the…

A: We have to predict the formula for Calcium hydrate.

Q: Write the balanced chemical reaction in the space below that is described by the following:

A: A symbolic representation of of a chemical reaction that reveals 3 things…

Q: Calculate the mass of carbon (in grams) in 366 g of acetic acid.

A: Given :-  Mass of acetic acid = 366 g  To calculate :-  Mass of carbon (in grams)

Q: What is the mass of 1.761 × 10^8 mol S? Answer in units of g.

A:

Q: A sample of a compound is found to contain 21.82 g of carbon, 9.16 g of hydrogen, 20.42 g of oxygen,…

A: Mass of compound is,

Q: What is the percent by weight (w/w%) of sugar in soda? Assume the average mass of sugar in soda is…

A: Mass of  sugar (solute) = 22.0 g Total mass if the solution = 370.0 g weight (w/w%) = ?

Q: Atoms and molecules are too small to count individually, but instead we can mass out a sample and…

A: In chemistry, measurements are crucial for accurate results. However, errors can occur during the…

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.