An arctic ecologist measures the thickness of an ice floe. The thickness is 0.241 m. What is the thickness in centimeters? Write your answer as a decimal. cm

Q: A student is determining the density of an unknown metal with a mass of 256.0 g. The student…

A: First, the volume of unknown metal is determined as follows,

Q: thickness of aluminum foil mass of aluminium foil 0.405 g length of aluminum foil 9.5 cm width of…

A: Given data, Length of aluminium foil= 9.5 cm  width of aluminium foil = 9.6 cm  and mass of…

Q: Use significant figures to express the inherent uncertainty in measured quantities and in…

A: The uncertainty in a measurement is an estimate of the amount by which the measurement result may…

Q: Titanium has a density of 4.55 g/mL. A piece of titanium has a volume of 250.0 mL. What mass, in…

A: Given  Density = 4.55 g/ml Volume = 250 ml

Q: what is the density of the salt in g/mL?

A: Density = mass ÷ volume    Rule for significant figure in division:- Round off final answer as per…

Q: A room has a width of 14.1 feet, a length of 15.5 feet, and a ceiling height of 12.0 ft. You plan to…

A:

Q: What is the density, in g/mL, of the metal?

A:

Q: The density of gold is 19.30 g/cm3. What is the mass (in grams) of a block of gold with dimensions…

A:

Q: The density of gold is 19.3 g/mL. What is the volume of 40.3 g of gold? mL

A:

Q: A chemist has a block of aluminum metal (density is 2.7 g/mL). The block weighs 1.1 g. What is the…

A:

Q: The deepest point in the Mariana Trench is approximately 10.9 km. What is this depth in feet?  (1…

A: Given : depth in Km = 10.9 km

Q: How many cubic centimeters are there in 8.14 yd^3 Express the volume in cubic centimeters to three…

A:

Q: An atom of a particular element has a volume of 7.8 x 10-31 m3. What is this volume in cubic…

A: An atom is always neutral because of the equal number of electrons and protons. Electrons are…

Q: The mass of earth is 5.98 ×10²⁴ kg. What is the mass expressed in tera-grams?

A: Given that : Mass of earth = 5.98 ×10²⁴ kg

Q: What is the density (g/mL) of an object that has a mass of 0.2182 kg , when placed into a graduated…

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

Q: How many inches are in 382.5 cm? (1 in=2.54cm)

A: Unit conversion from centimeters to inches can be done using the formula given below:

Q: An atom of a particular element has a volume of 7.8 x 10-31 m. What is this volume in cubic…

A: We know that, 1 nm= 10-9 m then,

Q: The average mass of a mouse is 0.68 ounces. What is this mass in kilograms? 1 ounce=28.35 grams

A:

Q: 7) Cats love to play with balls of yarn. If a 3.75 inch diameter ball of yarn weighs 0.110 lbs, what…

A: Given: Mass of ball = 0.110 lb Diameter of ball = 3.75 inch Radius of ball = 3.75 inch/2 = 1.875…

Q: The density of aluminum is 2.70 g/cm3. The mass of a solid piece of aluminum is 3.32 g. What is its…

A:

Q: An optician measures the diameter of her patient's pupil. The diameter is 0.0023 m. What is the…

A: We have to predict the diameter in mm .

Q: A brick of metal has these dimensions: 9.59 in x 6.09 in x 5.79 in. It has mass 11.7 kg. What is the…

A:

Q: A person is 5.75 feet in height, what is this person's height in meters? 1.00 in 2.54 cm 1 ft = 12…

A: Given data is: Given, the height of the person = 5.75 ft Since, 1 ft = 12 inches 1 inch = 2.54 cm…

Q: A house has an area of 221 m2.  Express the area in square decimeters to three significant figures.

A: The space occupied by a surface of an object or by a flat shape is known as area.

Q: An imperial fathom is exactly 6 feet in length. How many imperial fathoms are there in 1.000…

A: Given that, 1 meter =3.2808 feet An imperial fathom=6 feet It is known that, 1 kilometer= 1000 meter

Q: A student is determining the density of an unknown metal with a mass of 232.0 g. The student…

A: Given, the mass of unknown metal = 232.0 g Now calculate the volume of unknown metal is determined…

Q: An iron cannonball with a density of 7.86 g/cm3 is on display at a military museum. The cannonball…

A: Given: The density of the ball is 7.86 g/cm3. The volume is 115 cm3. The mass of the ball has to be…

Q: How can you tell what numbers are exact, and which are measured? For example, one mile, one meter,…

A: Exact numbers cannot be simplified and have an infinite number of significant figures. Measured…

Q: A rectangular solid measures 1.0 m by 5.6 cm by 2.1 dm. Express its volume in cubic meters, liters,…

A: The volume of the rectangle can be calculated by the formula,Volume (V) = length (l) × width (b) ×…

Q: 1. Calculate the area of a circle with a radius of 10.0 m. Express your answer in square centimeters…

A:

Q: A chunk of gold having a mass of 36.4 g occupies what volume (in dL)? Gold has a density of 19.3…

A: Given density of Gold = 19.3 g/cm3      mass of gold chunk = 36.4 g   Density has formula…

Q: A rectangular box measures 6.00 inches in length, 7.00 inches in width, and 8.00 inches in height.…

A: Given values and their conversion to centimeter: 1 inch = 2.54 cm Length = 6.00 inches = 6.00 x 2.54…

Q: You are using a Pasteur pipet and want to determine the volume of liquid dispensed in a drop. You…

A: From the given figure we can see that the volume of liquid present in the cylinder is approx 1 mL…

Q: A chemist has a block of copper metal density is 8.96g/mL. the block weighs 2.30 g. what is the…

A: Given Copper metal density = 8.96 g/mlBlock weight = 2.30 gram.we need to determine volume of the…

Q: An astronomer measures the distance from Earth to a newly-discovered asteroid. The distance is 2.38…

A: • The values provided in the question are:-    i) Distance between earth and newly discovered…

Q: A pharmacy technician measures the mass of a pill. The mass of one pill is 378 mg. What is the mass…

A: Given that : Mass of one pill = 378 mg Mass of 100 pills = ?

Q: Mr Fast runs 3.7km. Mr Slow runs 630m. How much further does Mr Fast run than Mr Slow?   Add…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: A pharmacist measures the mass of a powdered drug. The mass is  681mg. What is the mass in grams?…

A: We have given that  The mass  of a powdered drug  = 681mg.  mass  of a powdered drug in grams = ?

Q: How much does a copper sphere with a radius of 12.0 inches weigh in pounds? The density of copper is…

A: Given: Radius of copper sphere = 12.0 in Density of copper = 8.96 g/cm3

Q: A medical technician measures the length of a tropical parasite insect. The length is 191 mm. What…

A: Given, Length of tropical parasite insect = 191 mm Here "mm" is millimetres  To convert it into cm…

Q: A spherical iron ball has a diameter of 11.6 cm and has a mass of 4.70 kilograms. This particular…

A: Given : density of metal = 7.86 g/cm3  Diameter of ball (outer diameter) = 11.6 cm And mass of ball…

Q: An atom of a particular element has a volume of 7.8 x 10-31 m. What is this volume in cubic…

A: 1 m = 109 nm 1 m3 = (109)3 nm3 = 1027 nm3

Q: An atom of a particular element has a volume of 7.8 x 10¯31 m3 What is this volume in cubic…

A: The volume of the element is = 7.8×10-31 m3 This volume can be converted into a cubic nanometer by…

Q: A chemist has a block of iron metal (density is 7.87 g/mL). The block weighs 1.50 g. What is the…

A: Given :- Density of iron metal block = 7.87g/mL Mass of iron metal block = 1.50 g We have to find…

Q: A beaker weighs 145.60 grams. The chemical weighs 3.467 grams. What is the total mass?

A: Given: Weight of beaker = 145.60 g Weight of chemical = 3.467 g

Q: There is a block on your desk that acts as a paperweight. Its   measurements are 3 cm by 4 cm by…

A: There is a block on your desk that acts as a paper weight   Its measurements are 3cm by 4cm by…

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.