A European car advertises an efficiency of 22 km/L, while and American car claims an economy of 30mi/gal. Which car is more efficient?

Q: Describing the relationship between the melting time for an ice cube and amount of salt sprinkled on…

A: The freezing point depression is the one that results in lowering of freezing point of the pure…

Q: What is the unit of energy now used in the metric system? Give both name and symbol.

A: Unit of energy in metric system is to be accomplished.

Q: Nanotechnology, the field of building ultrasmall structures one atom at a time, has progressed in…

A: Hello. Since the question has multiple subparts, the first three subparts are solved. In case the…

Q: please write together with its units.

A:

Q: if a 12 oz energy drink has a total of 39 grams of carbohydrates (total sugars 39 grams) determine…

A: The full form of 'oz' is ounce which is a unit used for measuring volume. In the given case, it is…

Q: A vanilla milkshake at a restaurant contains 542 calories. What quantity of energy is in this shake…

A: 1 kilocalories = 4184 joules1 calorie = 4.184 joules.

Q: A college student produces about 101 kcal of heat per hour on the average. What is the rate of…

A: According to the rule of conversion of the unit, 1 cal is equal to 4.184 J So, (1×103) cal is equal…

Q: Food safety guidelines recommend that a beef ribs roast (bone-in) should cook for 23.0 minutes per…

A: The recommended cooking time per pound of beef ribs has been provided as follows: Time=23.0 min/lb…

Q: As a material expands its weight per unit of volume

A: Density = mass/volume  Expansion means increase in the volume

Q: A hybrid electric vehicle has an EPA gas mileage rating of 53mL/gal in the city. How many kilometers…

A: 1 gallon = 3785.41 ml 53 miles = 85.2952 km mileage of car = 53 miles/gal or 3785.41 ml needed to…

Q: A breakfast of cereal, orange juice, and milk mightcontain 230 nutritional Calories. Express this…

A: Given: A breakfast of cereal, orange juice, and milk might contain 230 nutritional Calories

Q: Energy that moves particles of matter is: Temperature

A: Need kinetic energy for particles movement.particles colloid with each other then increase in…

Q: 114.0 mL of H2O at 20.32 oC  is heated  to 86.22 oC. How many kJ of heat did it gain from the…

A: 114.0 mL of H2O at 20.32 oC  is heated  to 86.22 oC. How many kJ of heat did it gain from the…

Q: A household receives a $145 electricity bill. The cost of electricity is $0.120/kWh. How much…

A: Given, total electricity bill = $145           cost of electricity = $0.120/kWh Now, total energy…

Q: Identify the following as kinetic of potential energy examples: -Hitting a cue ball in a billiards…

A: Kinetic (movement) energy is a type of energy that outcomes from an item's movement. There are…

Q: Your car gets 25 miles galloon of gas . What would you be your Car's fuel efficiency in km/L

A:

Q: A tablespoon of olive oil contains 115 nutritional calories. How many joules of energy are in this…

A: Given : energy in calories = 115 cal.

Q: The distance an object moves per unit of time + direction =

A: Velocity is a vector quantity means it also depends on the direction.

Q: When heated, solid copper(II) carbonate decomposes to solid copper(II) oxide and carbon dioxide gas.…

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: How much heat, in Joules, is absorbed by 60 g of water in order to increase in temperature from 23°C…

A: Interpretation: The amount of heat, in joules absorbed by 60 g of water in order to increase in…

Q: Density is a very useful intensive characteristic property of matter. Why?

A: A question to describe about importance of density as the characteristic property.

Q: 2. A small car has a fuel efficiency of 34.3 miles per gallon. What is this fuel efficiency in…

A:

Q: 91.6 mL of H20 at 25.04 °C is heated to 67.94 °C. How many kJ of heat did it gain from the…

A:

Q: Hi, please choose which of the two substances has the property lis

A: 1. Boiling point depends upon mass .           Boiling point  α  molecular mass     2. Soulbility…

Q: Classify each of the following as a physical (P) or a chemical (C) change   Cooking an egg Boiling…

A: Before we classify the given changes as Physical Change or Chemical Change, let's understand the…

Q: In a solar box cooker sunlight falls on the and the food gets cooked by absorbing heat energy.

A: Mirror is used in a solar cooker to increase the radiation input on the absorbing space and is fixed…

Q: Photographs are taken of falling drops of two different liquids: wind wind Liquid A Liquid B Note:…

A: The shape of the liquid drop is due to the surface tension and this physical property depend upon…

Q: A low dose aspirin tablet contains 82 mg of aspirin how many tablets can obtain from 50.g  of…

A: Given that a tablet contains 82 m g of aspirin. The mass has to be converted into grams.

Q: A 1,513,679 g car is traveling 0.965 m/s. Calculate the kinetic energy of the car in J, Do not put…

A:

Q: Compressible is a classification of matter, where its molecules are existing separately from each…

A: A solid cannot be compressed much because its particles are already very closely packed and there…

Q: Which is a property of a nonmetal? A. Poor conductor of electricity B. Solid at room temperature C.…

A: We know that a nonmetal is Poor conductor of electricity

Q: Energy that an object has by virtue of its motion is called

A: Energy of object by virtue of motion is called kinetic energy

Q: You're in a diet that calls for eating no more than 1200 Cal/day. What is this energy in joules?

A: The energy form Calories can be converted into energy form of joules.1200 Calories/day means 1200…

Q: A car travels 28 mi per gallon of gasoline. What is the mileagein kilometers per liter?

A: The number of kilometers or miles covered is called mileage. The given data is that the car travels…

Q: The Honda Insight, a hybrid electric vehicle, has an EPA gasmileage rating of 41 mi>gal in the…

A: The distance of 1 mile is equivalent to 1.609 km. So, 41 miles is equal to 65.969 km.

Q: 91.6 mL of H20 at 25.04 °C is heated to 67.94 °C. How many kJ of heat did it gain from the…

A:

Q: Calculate the heat change in calories for condensation of 13.0 g of steam at 100° C. Express your…

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

Q: Which of the following vocabulary words defines the energy due to motion?  A.Heat B.Potential…

A:

Q: 263.3 mL of H2O at 18.17 °C is heated to 42.56 °C. How many kJ of heat did it gain from the…

A: We know,  q=c×m×∆T =>q=4.184J/g°C×263.3g×(42.56-18.17)°C

Q: A 1-ounce serving of Doritos has 17 g of carbohydrates. What is this mass unit of ounces?

A: The relationship between mass in ounce and g s  1 ounce = 28.35 g

Q: The Toyota Prius, a hybrid electric vehicle, has a U.S. Environmental Protection Agency (EPA) gas…

A: Mileage of the vehicle is 52 mi/gal. This shows that 52 mile can be travelled with one gallon.

Q: of potential energy or kinetic energy.

A: Potential energy is defined as the energy possessed by the body by virtue of its position (energy…

Q: A 45-kg sample of water absorbs 345 kJ of heat.  If the water was initially at 22.1 degrees celsius,…

A: Change in temperature is determined using the given formula,Specific heat of water is 4.184 kJ/kg.oC

Q: A block of aluminum is heated with 600J of energy. Its temperature increases from 10 degrees Celcius…

A: Given , Heat energy given , Q = 600 J initial temperature, Ti= 10°C final temperature, Tf= 47°C

Q: A change of kinetic energy of molecules create what property change in a body?

A: A question based on kinetic energy of molecules, which is to be accomplished.

Q: Could you please explain the law of conservation for match sticks.

A: Let us consider the question as “explain the law of conservation of mass for burning of match…

Q: After being spiked, a volleyball travels with speed near 100 miles per hour. Calculate the kinetic…

A: Kinetic energy of the volleyball is equal to the product of the mass and square of velocity of the…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.