A regulation NBA basketball has a surface area of 283 square inches What is the surface area of this basketball in square centimeters ? STARTING AMOUNT

Q: A student dispensing a solution (the volume is between 20-30 mL) into a reaction container using a…

A: The least count of volumetric buret is 0.01 mL. Hence the reading should be taken upto 2 decimal…

Q: Density of water

A: The density of water is defined as the mass per unit volume which would be  a measurment of how…

Q: State the density of water in grams per milliliter.

A: Interpretation - The density of water in grams per milliliter is to be explained.

Q: Is paper clip steel more dense or less than water

A: Is paper clip steel more dense or less than water.

Q: Question 4 4. The average distance from Earth to the Sun is 150,000 kilometers. What is that…

A: Note : The correct answer is first option only, It might be given wrong in the portal,  option…

Q: A calculator is found to have a mass of 118 grams. Using unit analysis, show what the mass of this…

A: Given, mass = 118 gm this measurement change into lb

Q: For household purposes, the use of teaspoon in measuring the dose is acceptable. All teaspoons…

A: Household spoons which include teaspoons, tablespoons, etc are not standardized and it gives only…

Q: What volume (in mL) would an object have if the object has a mass of 17.949 g and a density of 10.0…

A:

Q: Calculation of volume, given mass and density: What is the volume (in mL) of 32.0 grams of gold?

A: Given the density of gold is 19.3g/cc and mass is 32g.

Q: The density of a solid substance is usually greater than its density in a liquid form, yet the…

A: The term density can be defined as the measurement which can be used to compare the amount of the…

Q: percentage of matter

A:

Q: what is the literature value for the density of water to four significant figures?

A: Density is a physical quantity that can be determined with the help of the mass and volume of the…

Q: When a marble is dropped into a beaker of water, it sinks to the bottom. Which of the following is…

A: When a marble is dropped into a beaker of water, it sinks to the bottom. Which of the following is…

Q: Mass of picnometer + liquid, mass of liquid is 30.708g, mass of picnometer + liquid is 61.005g, what…

A:

Q: eaming Goal: o convert between metric units expressing length, area, and volume. Converting squared…

A:

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: Is a pencil being sharpened a chemical or physical change

A:

Q: A rock is placed on a balance and its mass is determined to be 20.140 g. When thesame rock is placed…

A: • The values provided in the question are:-  i) Mass of a rock, m = 20.140 g  ii) Initial volume of…

Q: Which one of the following is an intensive property? Group of answer choices amount of substance…

A: Answer:- Intensive property is the property whose value does not depend on the amount of the matter…

Q: Density of Unknown Solid, mass of picnometer + metal + water is 75.167g, what is the number of…

A: All the non-zero numbers are significant figures and zeroes between two non-zero numbers are…

Q: Density of Unknown  Liquid, mass of picnometer + liquid is 61.005, mass  of  empty picnometer…

A:

Q: The smallest bone in the human body, which is in the ear, has a mass of  0.0030 g. what is the mass…

A: Given, The smallest bone in the human body which is the ear, has a mass of 0.0030 g mass of bone in…

Q: A soda can is found to have a volume of 362 milliliters. Show, using unit analysis, what the volume…

A: Given,Volume = 362 milliliters.

Q: What is that temperature in the kelvin?

A: We can convert degree celsius to kelvin by this formula :-  0°C + 273.15 = 273.15k   Given…

Q: density of the silver metal.

A:

Q: Is the melting point of a chemical a physical property or chemical property

A: Physical property :-  A property which can be measured without changing the chemical composition of…

Q: What is the total mass of silver gained or lost?

A:

Q: A puzzle cube has a volume of 187 ml What is the volume of the cube in in

A:

Q: che time, in minutes, tl

A:

Q: Can you show me the process of how I would know the number of centimeter in one feet, from the…

A: The number of centimeters in 1 feet is, 1 ft = 30.48 cm

Q: The area of a telescope lens is 6.930 × 10' mm². (a) What is the area in square feet (ft")? (Answer…

A: here we are required to find  the area of telescope lens in the unit of square feet

Q: Density of Unknown liquid, mass of liquid is 30.708g, mass of water is  30.31g, what is the density…

A: Given is  Mass of liquid (Ml) = 30.708 g Mass of water (Mwater) = 30.31g Density of liquid (dl) = ?…

Q: what is the mass of a troy ounce of gold in grams and in carats

A: In chemistry gold represented as symbol Au having atomic number=79.

Q: A microorganism contains 0.0000046 g of vanadium. Express this amount in scientific notation.

A: Introduction- Scientific notation is the way of representing large decimal numbers in a smaller way.…

Q: Density of Unknown Solid, mass of picnometer + metal 46.356, mass of picnometer + metal + water,…

A: The rules for finding number of significant figures are as followes : 1) All non zero digits are…

Q: Atom X has a radius of 0.130 nm. Assume that the atom is sphere and calculate its volume in cubic…

A: Given: The radius of atom X =0.130 nm Conversion factor : 1 nm = 10-9 m  The volume of the atom (in…

Q: Density of Unknown liquid, mass of empty picnometer  is 30.297g, mass of picnometer + liquid is…

A:

Q: a graduated cylinder contains 15.00 ml of water initially. after a metal object is placed in it…

A: Please find your solution below :

Q: Osmium (Os) is the densest element known (density = 22.57 g/cm3). Calculate the mass in pounds and…

A: Complete solution is given below in next step

Q: A certain quantity of water is given 4.0kL of heat. This raises the temperature by 30 degrees…

A: NOTE: The units of heat will be KJ and not KL. Given: Amount of heat absorbed = 4.0 KJ = 4000 J…

Q: A racing car speeding around the oval at the Indianapolis 500 travels at a speed of 176 miles per…

A: Given:Speed = 176 miles/hour.

Q: The Olympic Games shot put field event uses a 16 pound (lb) shot. What is this mass in kilograms?

A: Unit conversion: 1 pound (lb) = 0.454 kg

Q: 1. In classical Physics and general Chemistry, matter is any substance that has mass and takes up…

A:

Q: balloon is the same as the air pressure outside the balloon. Suppose we next heat the air inside the…

A: When the temperature rises, the volume of the balloon increases. An increase in volume leads to a…

Q: Density: A barge company wants to float supplies down the Kansas River. To make the most money, they…

A:

Q: A rock is placed on a balance and its mass is determined to be 22.410 g. When the same rock is…

A: Answer - Density - Density is a measure of mass per volume. The average density of an object equals…

Q: Alex has been taking Excedrin for her headaches. The adult dosage is 250 milligrams per tablet to…

A: Excedrin is used for temporary relief of pains like headache , muscle pain tooth ache etc. Excedrin…

Q: A nickel is found to have a mass of 4.87 grams. Using unit analysis, show what the mass of this…

A:

Q: Earth's oceans have an average depth

A: An ocean is a huge body of saltwater that covers 71 percent of surface of earth.

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.