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: Density of water

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

Q: What is the density of a 789 kg object that is 1.58 m³ in size? number unit

A: Given, Mass the object = 789 kg Volume of the object = 1.58 m3 Density of the object = ?

Q: I know in order to find the volume you take the density divided by the mass. Although, I do not know…

A: Given: Mass of the foil = 0.557 g Length of the foil= 9.85 cm Width of the foil=10.10 cm

Q: A metal object has a mass of 8.0 ×10^8 micrograms. What is it's mass in kilograms

A: The relationship between mass in Kg and micrograms is  1 Kg = 1000 grams = 109 micrograms

Q: mL. What is t

A: To find the density of the substance whose mass of the substance is 50g  volume is 85.0ml

Q: If a lake has a surface area of 13.5 km? and an average depth of 17.4 m. What is the volume of the…

A: The surface area of a lake = The average depth of the lake = We have to calculate the volume of the…

Q: 4.67*10^5 nm to meters

A: So, as we know that, 1 nm = 10-9 m 1 fm = 10-15 m 1 pm = 10-12 m 1 Å = 10-10 m 1 um = 10-6 m 1 mm =…

Q: A quantity of water is poured into a graduated cylinder, which then reads 156 mL. What is the mass…

A: Given : volume of water = 156 mL

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

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: combined mass of ten raindrops in grams?

A: Given : The mass of a raindrop = 8 milligrams or 8 mg

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: A medical laboratory test is run using a 4.8 uL blood sample. What is the volume in milliliters?

A: Given: The volume of blood sample is  .

Q: 1.65 meters to cubic mililiters

A: As known unit conversion:

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

A:

Q: How many sig figs should I have in 1.18 meters converted to inches

A:

Q: 7.54 x 10e-8 m to nanometers

A: Unit measurements are important in chemistry as they are very helpful while doing calculations. It…

Q: Should the answers length .355 m and .302 m width have the same number of significant figures as…

A: Given: reading of length .355 m and .302 m width

Q: you need a cube of aluminium with mass of 7.6g what must the length of the cubes edge in cm (the…

A:

Q: When you put salts in the fire during a flame test, the flame turns a different color. Is this a…

A: When we puts salt in fire during flame test the flame turns to a different color.

Q: 4398 mg to kilograms

A: We are asked to convert 4398 mg to kilograms (kg)

Q: What are the two unit factors that relate meters and millimeters?

A: Two equivalent quantity’s ratio is unit factor. So the quantity in the numerator and denominator…

Q: Aspirin has a density of 1.40 g/cm. What is the volume in cubic centimeters of a tablet weighing 626…

A:

Q: convert 0.386g to milligrams. use only metric system

A: Convert 0.386g to mg ?

Q: A student collected date to calculate the density of a wooden block. He found the density to be…

A: Significant figures are used to express the degree of accuracy of an answer. The rules for…

Q: A dessert contains 145.05 g of vanilla ice cream, 82 g of fudge sauce, and 39.3 g of nuts. • Part A…

A: The formula for the total mass of the dessert is equal to the sum of the mass of vanilla ice cream,…

Q: The density of a substance relative to the density of water.  It is one of the few measured values…

A: The density of any substance is mass by volume. Density=massvolume The unit of mass is Kg and the…

Q: Which of the followings is the volume of a metal cylinder with 40 mm for diameter, 3.0 cm for…

A: The objective of the question is to calculate the volume of a metal cylinder with a given diameter…

Q: A student determines the density of a liquid by determining the mass of an empty graduated cylinder,…

A: (a) Determine mass of the liquid:

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: If volume is 320mL and density is 13.5mL what is the mass?

A:

Q: An object weighing 18.00 g is placed in a graduated cylinder containing 14.0 mL of water. The total…

A: Given: Mass of object= 18.00 g Volume of water= 14.0 mL Volume of water and object= 29.0 mL

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: A sample is found to contain 7.20*10-^3 g of salt express this quantity in nanograms

A: Mass of sample salt = 7.20 × 10^-3 g Since we know that, 1 gram = 1.0 × 10^9 nanograms

Q: Convert the volume 98.5 ml to units of inches cubed

A: Milliliters and cubic inches, both are units used for measuring volumes. The mathematical…

Q: 34 3. A rectangular sheet of zinc (d = 7.13 g/mL) measures 7.15 cm by 8.97 cm by 0.20 cm. What is…

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.