Todd wondered what would happen if he could remove all the atoms in a metal spoon. He asked his friends what they thought. This is what they said:

Q: How many atoms of silver are in a bracelet that weighs 34.0 g? O 1.1 x 1023 O 1.1 x 106 O 1.9 x 1023…

A: We have to calculate the number of atoms.

Q: When kerosene is burned with oxygen, the products are carbon dioxide and water. If you produce 72…

A:

Q: Suppose you measure out 5.00 x 1022 atoms of aluminum in the form of a solid nugget on the balance.…

A: The formula for the conversion from atoms to moles is : => moles = number of atoms given / 6.022…

Q: What mass of potassium phosphate is needed to form 300.49 grams of potassium bromide?

A: 1 mole of potassium phosphate formed 3 moles of potassium bromide.

Q: How many argon atoms are contained in 7.66 x 10 mmol of argon?

A: Given: Moles of argon = 7.66 × 105 mmol = 766 mol.                            (since 1 mol = 1000…

Q: 3) Show your calculations clearly. Suppose you are provided with a 36.55 g sample of potassium…

A:

Q: About Gravity, tick only the incorrect alternative(s), choose one or more: a) In gravimetric…

A: Gravimetric analysis is a technique used in inorganic labs to determine the amount of analyte…

Q: 19.78 mL of bromine contains 6.022 x 1023 bromine molecules. How many bromine atoms are in 3.00 L of…

A: Given -> Volume (V1) = 19.78 ml = 0.01978 L (1L = 1000 ml) Number of bromine molecules in V1=…

Q: Calculate the total number of N atoms in 23.8 g N2O5. O 2.65 x 1023 total N atoms O 9.31 x1023 total…

A:

Q: 2. If you want to produce 85 g of silicon, how many grams of magnesium will you need? How many grams…

A: The chemical reaction that takes place between sand and magnesium metal to produce elemental silicon…

Q: How many moles of Sr are there in 6.00 x 109 Sr (Strontium) atoms? Show work.

A:

Q: In an experiment, a specific amount of KClO3 is allowed to decompose to produce 4.40 g of KCl. How…

A: Given Mass of KCl produced = 4.40 g To find Mass of O2 produced in the experiment.

Q: Which of the following will react with Mg (s)? a.Co(NO3)2(aq) b.FeCl2 (aq) c.NaC2H3O2(aq)…

A: More electropositive metal can replace less electropositive metal by redox reaction. In redox…

Q: Which of the following combinations of chemicals will result in a potentially explosive mixture?…

A: For the given reactions, the possible products have been predicted below.

Q: When methane is burned with oxygen the products are carbon dioxide and water. If you produce 36…

A:

Q: What percentage of Water (H20) is Hydrogen ? 89 % 4.5 % 11% 2.5 %

A: To find:  Percentage of Hydrogen in water  89% 4.5% 11% 2.5%

Q: An aluminum plant produces 60 million kg of aluminum per year. How much aluminum oxide is required?

A: The amount of Aluminum oxide required to produce 60 million aluminum per year is given below

Q: the born- haber process is produces ammonia (NH3) and is responsible for the vast increase in…

A:

Q: Potassium chlorate is the prime ingredient in most Chinese fireworks.  If I have 25 grams of…

A: Balance chemical reaction of potassium chlorate  2KClO3  ------------> 2KCl +  3O2  molar mass of…

Q: molar mass C

A:

Q: How could a carbon atom could become a nitrogen atom? Explain and be specific in your explanation

A: Nuclear reaction: The given reaction is a nuclear reaction. In the nuclear reaction, one nuclide is…

Q: 10 Chemical bond that forms between nonmetal atom and a metalloid atom. C. Metallic bond D. Hydrogen…

A: 10. A chemical bond is a strong force of attraction holding the atoms or ions together in a…

Q: 39.5 g of cobalt will combine with 107 g of bromine to form a binary compound. How much of the same…

A:

Q: Why are some substances reactive and others not?

A: The arrangement of electrons in an element determines whether it will reactive or not. As we know,…

Q: If 23.5 grams of silver nitrate are added to 16.0 grams of sulfuric acid, how many grams of silver…

A: Given: 23.5 grams of silver nitrate is added to 16.0 grams of sulfuric acid. To find: grams of…

Q: tiny,liquid droplets found in the atmosphere

A: The tiny,liquid droplets found in the atmosphere is known as aerosols. These aerosols are the…

Q: There are more molecules of H2O in a cup of water there are cups of water in the entire ??

A: Water has a molecular weight of 18 (with some approximation), which gives it a molar weight of 18…

Q: A 0.580 g sample of calsium(Ca) is allowed to burn in 2.530 g of oxygen gas(O2). The sole product is…

A:

Q: 1. If 23.6 grams of nitrogen are mixed with 17.3 g of hydrogen, how much ammonia may form?

A: Given :-  Mass of Nitrogen, N2 = 23.6 g  Mass of Hydrogen, H2 = 17.3 g  Mass of Ammonia, NH3 = ?…

Q: If 21.4 g of aluminum is reacted with 91.3 g of Fe2O3, the prodücts will be Al2O3 and iron. What…

A: Limiting reagent: In a chemical reaction, the reagent that totally consumed is known as a limiting…

Q: An atom of rhodium (RhRh) has a diameter of about  2.7×10−8cm2.7×10−8cm. How many RhRh atoms would…

A: Given : Diameter of Rh atom = 2.7 X 10-8 cm And the distance to be covered = 6.0 μm = 6.0 X 10-4 cm…

Q: Determine the mass in grams of 7.75 x 1021 atoms of carbon. (The mass of one mole of carbon is 12.01…

A: Given,the mass of one mole of carbon = 12.01 gNumber of carbon atoms = 7.75×1021 atomsHere, we are…

Q: How many moles of mercury (Hg) would be found in 250. grams of mercury?

A: Given that: mass of Hg = 250 g To find: number of moles of Hg?

Q: who received the Nobel Prize in Chemistry in 1912 ?

A: Nobel prize is one of the highest rank award given in the fields of chemistry, physics, literature,…

Q: There were 2250 tons of ammonium nitrate involved in the explosion in 1947. How many kg of oxygen…

A: The decomposition of ammonium nitrate releases oxygen gas, nitrogen gas , water and release high…

Q: Why is carbon monoxide considered to be poisonous?

A: Carbon monoxide has a carbon triply bonded to an oxygen. It exists as a flammable gas with no odor…

Q: A mixture was found to contain 1.05g of SiO2, 0.69 g of cellulose, and 1.82 g of calcium carbonate.…

A: Given : weight of SiO2 = 1.05 g Weight of cellulose = 0.69 g Weight of calcium carbonate = 1.82 g

Q: Platinum is an expensive and rare metal used in catalytic converters. Much research has been devoted…

A: Nanoparticles are very small particles which range between 1 to 100 nm. As they are very small in…

Q: 1. Give reasons why the helium atom is smaller than the cesium atom. 2. A student got a problem…

A: Helium belongs to the first period in the periodic table, having atomic number 2. It has one atomic…

Q: If you mix 80.01 grams of sodium bicarbonate with 85.54 grams of hydrogen acetate how much carbon…

A:

Q: If 75.0 g of AlCl3 has been produced, what mass of Al has been consumed (in grams)?

A: Here we are required to find the mass of Al consumed.

Q: If 2.15 moles of methane are reacted with 7.6 moles of oxygen gas, what mass of water will be…

A: To solve this problem first we write the balanced chemical equation .  Then according to the…

Q: 3) Show your calculations clearly. Suppose you are provided with a 36.55 g sample of potassium…

A:

Q: how many grams of hydrogen gas will I produce?

A: Given :- mass of Mg = 40 g  To calculate :- mass of H2 gas (in g)    Molar mass of  Mg = 24.305…

Environmental Pollution

Environmental pollution occurs due to some unwanted alteration in the surroundings which results in unfavorable effects on all organisms of that surrounding.