What is the weight of 95% ethanol (0.790 g/mL) if its volume is 21.7mL? a. 17.143 g b. 17.6 g   c. 17.62 g d. 17.1 g

Q: A bag of popcorn that had a mass of 110.0g. After popping the bag its mass is 100.0g. After…

A: Percentage of water can be calculated by dividing the mass of water to mass of popcorn into 100.

Q: I am taking up space botany in all the free time I have. I need 3.20 kiloflowers to make a space…

A: To convert 3.20 kiloflowers into nanoflowers use the following conversion: 1 kiloflowers = 1012…

Q: solution? 2 LİCI(aq) + Pb(NO3)2(aq) → P6C12(s) + 2 LİNO3(aq) 160. g 5.52 g 7.99 g O 8.23 g 359 g…

A: We wil use stoichiometry of the reaction to get the answer

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: ow many miles of Hg can be made from 16 grams of Hg ?

A: given mass of Hg(mercury) = 16g we need to determine moles of Hg = ?

Q: 6. When 60 g of calcium chloride is dissolved in 500 g of Water, greater than (a) exists as a liquid…

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Q: 4. Exactly 2 g of steel wool was placed in a 100 g glass jar. After 50 g of water was added to the…

A: Dear student, we are authorised to solve only one question at a time. Please post rest of the…

Q: From 1962 until 1981 pennies were made from 95% copper and 5% zinc and had a mass of 3.1 g. Starting…

A:

Q: Before Janet leaves the doctor, she is informed that she needs to pay closer attention to her sodium…

A:

Q: 2) A sample of clean air is found to contain 20.45% oxygen gas by volume. How many liters of oxygen…

A:

Q: 4) ½N½(g) + 02(g)= N02(g) ouboi N2(g) + 202(g) =N½04(g) Calculate Kc for each of the following. (a)…

A:

Q: 1. Every three times I clean my bedroom, my mother makes me an apple pie. If An apple pie requires…

A: Note: According to our guidelines we are supposed to answer only one question. Kindly repost other…

Q: a) FeCl3 (aq) b) CuSO4(aq) c) NiCl2(aq) O a) 10 F b) 2 F c) 12 F O a) 3 F b) 1 F c) 2 F O a) 3 F b)…

A: The questions based on Faraday's first law of electrolysis.   it states that mass of an element…

Q: 41) How many molecules of water are present in 54g of water?   A. 1.8x1024   B. 12x1023   C.…

A:

Q: Part A The recommended daily allowance of calcium for those between 19 and 24 years old is 1.2 g of…

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Q: 2M(s)+6HCl(aq)⟶2MCl3(aq)+3H2(g)ΔH1=−783.0 kJ2M(s)+6HCl(aq)⟶2MCl3(aq)+3H2(g)ΔH1=−783.0 kJ…

A: In-order to get the desired equation, following rearrangements in reactions have to be done

Q: How much zinc oxide powder should you add to 2 oz (AV) of 5% zinc oxide (ZnO) ointment to make a 10%…

A: We will first calculate amount of ZnO in 20 oz ointment then calculate ZnO added to it to make 10%…

Q: B. Substance 2 7. Fill the graduated cylinder to 20 mL. 8. Find the mass of the substance 177.5g 9.…

A: Density is defined as mass of substance per unit volume. The formula for calculating it is given…

Q: A dietary supplement for calcium contains 600 mg of CaCO3 per tablet. How many grams of calcium are…

A:

Q: How many mg in 3.41 x 10-5 g?

A: The milligrams (mg) in 3.41 x 10-5 g are to be calculated. Select one: 3.41  x 10 3 mg 3.41  x 10…

Q: Odd one out *   a. Shape of land surface b. Topsoil c, Slope of land d, Land position

A: Since you are posted with multiple questions. As per the rule, I am answering the first question…

Q: 1. Give two reasons why one substance might have a greater density than another substance from a…

A: 1. The size, mass, and arrangement of molecules affect the density of a substance. Consider sample A…

Q: What is the mass in grams of 12 oz mass of salt

A: Given that, mass = 12 oz change into gram ?

Q: Question attached

A: Given  initial mass = 2.752 g final mass = 1.941 g  a) To calculate the percent of water in the…

Q: (a) 2C(s) + O2(s) → 2C0(g) (b) 2NAHSO3(s) Naz503(s) + 502(s) + H2O(g) (c) 2C(s) + 2H20g) CO23) +…

A: Equilibrium constant kc is the ratio of equilibrium concentration of products over the equilibrium…

Q: A volatile liquid (one that evaporates quickly) was put into a jar and sealed. The temperature of…

A:

Q: 180 1. "OH OCH3 2. H* 180 18OH OH 3 1 A. 1 only В. 2 only С. З only D. 1 and 2 E. 1 and 3 F. 2 and 3…

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

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Q: A. O 2C2H6(g) + 702(g) 4CO2(g) + 6H2O(g) B. O C2H6(g) + 3.5014) → 2CO2(g) + 3H2O(g) C. O 2C2H6(g) +…

A: Ethane having formula C2H6

Q: 1. A cup of water containing an ice cube at 0°C is filled exactly to the brim (so that a single…

A: To answer this question , we will consider the fact about density of liquid water and ice.

Q: The air exhaled from the lungs of a smoker has a concentration of 20-50 ppm CO. In contrast, air…

A: The concentration of CO in exhaled air has been provided in the units of ppm (parts per million).

Q: 1. 2M(s)+6HCl(aq)⟶2MCl3(aq)+3H2(g)2M(s)+6HCl(aq)⟶2MCl3(aq)+3H2(g) Δ?1=−699.0 kJΔH1=−699.0 kJ 2.…

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Q: A solution is prepared by dissolving 49.3 g of KBr in enough water to form 473 mL of solution.…

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Q: A classic SUV features a 194 L gas tank. Assuming a molecular formula of C8H18 for gasoline and…

A: Consider the balanced reaction for the complete combustion of gasoline to give CO2  and  H2O is as…

Q: The density of metal #2 is 3 times greater than the density of metal #1. 52.5 g of metal #2 caused…

A: Given Density of metal #2 is 3 time greater than density of metal #1

Q: The melting point and the normal boiling point of water can be used to calibrat- thermometers. What…

A: What are the melting and boiling point of water in kelvin temperature ?

Q: You have decided to go on a road trip with your friends to Joshua Tree National Park (the desert!)…

A: The amount of water required for each person for 3 days = 1.85 gallons x 5 x 3 = 27.75 gallon =…

Q: Earth's atmosphere is approximately 78.0% nitrogen and 21.0% oxygen. What is the mass in grams of…

A: The volume of gas is = 1 m3 The pressure of the air = 1 atm The temperatur of the air = 25oC =…

Q: Earth's atmosphere is approximately 78.0% nitrogen and 21.0% oxygen. What is the mass in grams of…

A: Earth's atmosphere consists of 78.0% nitrogen and 21.0% oxygen apart from 0.9% argon and 0.1% other…

Q: water. What can be done to the mixture to help dissolve the remaining sugar After the mixture is…

A: Answer: This question is based on factors affecting the solubility of a solute in a solvent. Here,…

Q: Earth's atmosphere is approximately 78.0% nitrogen and 21.0% oxygen. What is the mass in grams of…

A: Pressure of air (P) = 1 atm Volume of air (V) = 1000 L Temperature of air (T) = 298 K Universal gas…

Q: 5) What mass of methane does a single cow produce? Calculate the high and the low end, please. 179 g…

A: Stoichiometry refers to relationship between the amounts of reactants and products as per balanced…

Q: 9. Wolf teeth cost $28 per kg from Mr. Topango. An average wolf tooth weighs .55ounces. If you give…

A:

Q: fa "classic" SUV features a 52 gallon (197 L) gas tank and assuming complete combustion and a…

A: Given ,  Volume of tank is 197 L Density of gasoline = 0.78 g/mL

Q: 8. Suppose you were asked to prepare a 250 g chocolate mousse which is a 35% chocolate, 30% cream,…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Based on the following incomplete I.C.E. (or R.I.C.E.) 4 NO2 (g) + 02 (g) = 2 N205 (g) Which of the…

A: The given reaction is, 4 NO2 (g) + O2 (g) = 2 N2O5 (g) The ICE table given is,   NO2 (g) O2 (g)…

Q: Obtain about 0.50 g of aluminum foil. Measure and record its mass accurately. Tear the foil into…

A: The given mass if the aluminum foil is about 0.50 g.

Q: Someone invents new units of measurement: grobs, hulks, and blubs. They define that 1 hulk is equal…

A:

Q: T26 What is the density of argon gas at STP? Select one: a. 0.562 g/L b. 1.78 g/ml c. 0.562 g/ml d.…

A:

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.