An alloy is made by mixing 35.0 g of gold 42.0 G of nickel and 51.5 G of aluminum what is the percent of each metal in the alloy ?

Q: 50. A 56-g sample of iron reacts with 24 g of oxygen to form how many grams of iron oxide?

A: Interpretation - A 56 g sample of iron reacts with 24 g of oxygen to form iron oxide. The grams of…

Q: what is the percent by weight of sugar in soda if the average mass of sugar in soda is 35 g and the…

A: The mass of solute present in 100 g of solution known as the (w/w) percent concentration of the…

Q: One pound of sulfur combines with one pound of oxygen to produce a gas. What is the percent by…

A: Mass of sulphur = 1 pound Mass of oxygen = 1 pound

Q: A major component of gasoline is octane C8H18. When octane is burned in air, it chemically reacts…

A: The balanced equation for combustion of octane is given as - 2C8H18  + 25O2  => 16CO2 + 18H2O So,…

Q: what is the mass, in grams

A:

Q: Carbon dioxide (CO2) is a gaseous compound. Calculate the percent composition of this compound.…

A: Mass percentage is given by, Mass percent =mass of the elementTotal Mass ×100

Q: Hot-air balloons float because the air caught inside the balloon is heated up by a burner, making it…

A: The density of a compound is determined by the ratio between mass of the compound to its volume. It…

Q: When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 14.4 gg of carbon…

A: This question is asking about the mass of carbon dioxide during reactions of carbon with oxygen gas.…

Q: A commercial juice is known to have 80 % of the daily allowance of vitamin C per serving. If the…

A: Vitamin C is chemically known as ascorbic acid, it is an important component of a healthy diet. We…

Q: A major component of gasoline is octane (C3H,g). When liquid octane is burned in air it reacts with…

A:

Q: A major component of gasoline is octane (C,H). When octane is burned in air, it chemically reacts…

A: Given :-  Octane + oxygen → carbon dioxide + water  Amount of O2 = 2.6 g  To calculate :-  Amount of…

Q: A dose of of asprin of 25.0 mg per kilogram of body weight has been prescribed to reduce the fever…

A: The temperature or fever of human body is brought down using aspirin tablets. It also helps in…

Q: The chemical formula for hydrogen chloride is HCI. A chemist determined by measurements that 0.0150…

A:

Q: Suppose 12 g of natural gas combines with 48 g of oxygen in a flame. The chemical change produces 33…

A: Given, Mass of natural product = 12 g Mass of oxygen = 48 g Mass of carbon dioxide = 33 g

Q: The nickel is comprised of two metals, nickel and copper. Surprisingly, the coin is only 25% nickel.…

A: The coin is comprised of nickel and copper. The mass percentage of nickel in the coin is = 25% The…

Q: If a gold alloy contains 20% silver and 5% copper, what is the percent of gold in the alloy?

A: An alloy is an admixture of metals, or a metal combined with one or more other elements.

Q: A 194g sample of caffeine contains 6.02 *10^23 molecules of caffeine. If a typical 10-hour energy…

A: 1000 mg = 1 g Given that: Amount of caffeine = 422 mg Number of molecules of caffeine per 194 g =…

Q: When chlorine gas is bubbled into a solution of sodium bromide, the sodium bromide reacts to give…

A: Amount of a reactant reacted can be calculated using the amount of product formed using…

Q: In a butane lighter, 9.8 gg of butane combines with 35.1 gg of oxygen to form 29.6 gg carbon dioxide…

A:

Q: An Alloy is made by mixing 40.0 grams of tin, 30.0 grams of lead and 55.0 grams of copper. What is…

A: Here we are provided with the mass of each metals in the given alloy. So, it is very easy to find…

Q: How many Liters of gasoline will be used to drive a car 499 miles in a car that averages 33 miles…

A: Given,

Q: How many.grams F in 584.8 g Br2F6? Put the answer in the box in regular (non-scientific) notation.…

A: Number of moles is defined as given mass divided by molecular mass.

Q: Under certain conditions, the substances iron and oxygen combine to form iron(II) oxide. If 22.0…

A: Iron reacts with oxygen to form iron oxide. Write the complete reaction. 2Fes+O2g→2FeOs This means…

Q: The mass of a test tube and hydrate was 35.2755 grams. The mass of the empty test tube was 23.7726…

A: Mass of water is equal to the mass of the hydrated salt test tube and the mass of anhydrous salt…

Q: A 28.0-g sample of nitrogen gas combines completely with 6.0 g of hydrogen gas to form ammonia. What…

A: Nitrogen gas reacts with hydrogen gas to form ammonia. Write the complete reaction. N2g+3H2g→2NH3g

Q: Aqueous hydrochloric acid (HCI) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: The chemical reaction between HCl and NaOH is shown here-HCl+NaOH→NaCl+H2OHere moles of HCl…

Q: steel is an alloy of iron, carbon, and other metals, typically steel contains 2.14% carbon by mass.…

A: We have to calculate the total mass of steel sample.

Q: What is the mass of copper, g in 1.652g of copper chloride? what is the mass of chlorine g

A: Copper Chloride ( CuCl2 ) Molar mass of CuCl2 = 134.45 g/mol   1 mole CuCl2 contains ;  1 mole of…

Q: (a) A student has a 10.0g sample of CaBr2. Show the setup of the calculation to determine the number…

A: The number of the moles of any substance present in a sample is the ratio of the given mass of that…

Q: The solubility of benzoic acid in water at room temperature  is 0.35 g per 100 mL of water. 4.54 g…

A: The question is based on the concept of crystallization. we have to determine how much quantity of…

Q: An alloy is made by mixing 40.0 grams of tin, 30.0 grams of lead and 55.0 grams of copper. What is…

A:

Q: 25g of ice cubes at-5 C glass with 100 g of water at 25 c 7. If you put the glass with water and ice…

A: Mass of ice cube = 25 g The mass of water is = 100 g The mass of empty glass is = 7 g

Q: A commercial juice is known to have 110 % of the daily allowance of vitamin C per serving. If the…

A: Percentage of Vitamin C present in the juice per serving = 110% Daily allowance of Vitamin C = 75.0…

Q: The chemical formula for sodium bromide is NaBr. A chemist measured the amount of sodium bromide…

A: A question based on mole concept that is to be accomplished.

Q: A sample of ascorbic acid (vitamin C) is synthesized in thelaboratory. It contains 30.0 g carbon and…

A: The mass of oxygen (in grams) in the second sample has to be  computed

Q: When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 21.6 gg of carbon…

A: 1) Write the balanced chemical equation for the given chemical reaction. 2) Identify the limiting…

Q: Brass is a combination of copper and zinc in different percentages. What mass of copper is contained…

A: A question based on concentration terms that is to be accomplished.

Q: Under certain conditions, the substances iron and oxygen combine to form iron(III) oxide. If 23.6…

A: Limiting reactant :- A reactant which is present in lesser number of moles than required as per…

Q: according to the national heart, lung and blood institute LDL-cholesterol levels of less than 130 mg…

A: Volume of blood in an average human is,

Q: How many grams are needed to prepare a 5,067 g of CaCl2 of 6 % solution? (Type your answer with the…

A:

Q: The mole is a unit that counts things and it can be converted into

A: Mole is the unit of the amount used extensively in the calculation of chemistry. The mole amount of…

Q: The chemical formula for barium oxide is BaO . A chemist measured the amount of barium oxide…

A:

Q: - grams c

A:

Q: When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 21.6 g of carbon…

A: The carbon and oxygen react to form carbon dioxide as follows: The stoichiometry of the reaction…

Q: Saline

A: We will use formula of (w/v)%

Q: n extra-strength aspirin tablet contains 0.250 grams of the active ingredient, acetylsalicylic acid.…

A: Given : 1 grain contains 50 mg of active ingredient  And 1 tablet has 0.250 g of active ingredient…

Q: A major component of gasoline is octane (CH3). When liquid octane is burned in air it reacts with…

A:

Q: What is the percent by mass of NaCl

A: Percent by mass of NaCl = (mass of NaCl/mass of solution) × 100%

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.