Monday

May 30, 2016
Number of results: 75,090

**chemistry**

A block of metal has a width of 3.2 cm, a length of 17.1 cm, and height of 3.7 cm. Its mass is 1.3 kg. Calculate the density of the metal.
*August 27, 2010 by Mely*

**Chem**

A block of metal has a width of 3.2 , a length of 17.1 , and height of 4.8 . Its mass is 1.2 . Calculate the density of the metal.
*September 22, 2010 by Anonymous*

**chemistry**

A block of metal has a width of 3.2 , a length of 17.1 , and height of 4.8 . Its mass is 1.2 . Calculate the density of the metal.
*June 3, 2013 by sue*

**chemistry**

A block of metal has a width of 3.2 cm, a length of 17.1 cm, and height of 3.6 cm . Its mass is 1.5 kg . Calculate the density of the metal.
*August 26, 2015 by sara*

**chemistry**

A block of metal has a width of 3.2cm, a length of 17.1 cm, and height of 5.2 cm. Its mass is 1.1 kg. Calculate the density of the metal
*September 11, 2010 by Javier*

**chem**

A block of metal has a width of 3.2cm, a length of 17.1cm, and height of 3.6 cm. Its mass is 1.3 kg. Calculate the density of the metal.
*September 7, 2011 by jake*

**chemistry**

A block of metal has a width of 3.2 cm, a length of 17.1 cm, and height of 3.9cm . Its mass is 1.3kg . Calculate the density of the metal.
*September 1, 2013 by joe*

**Chemistry **

A block of metal has a width of 3.2 cm, a length of 17.1 cm, and height of 5.8cm . Its mass is 1.5kg . Calculate the density of the metal.
*September 2, 2013 by Jenn*

**Chem**

A block of metal has a width of 3.2 cm , a length of 17.1 cm , and height of 5.2cm . Its mass is 1.2kg . Calculate the density of the metal
*September 12, 2013 by Jillian*

**Chem**

A block of metal has a width of 3.2 cm, a length of 17.1 cm, and height of 4.3cm . Its mass is 1.2kg . Calculate the density of the metal.
*September 16, 2013 by Cf*

**Chemistry**

A block of metal has a width of 3.2 cm , a length of 17.1cm , and height of 5.8cm . Its mass is 1.5kg . Calculate the density of the metal.
*September 29, 2012 by Rae*

**chemistry**

a block of metal has a width of 3.2cm, a length of 17.1cm, and a height of 3.7cm. its mass is 1.3kg. calculate the density
*September 6, 2015 by keith*

**phy**

Calculate the density for a rectangular block using the following measurements. Length: 2.70 cm, Width: 1.10 cm, Height: 9.09 cm, Mass: 72.17 g. Round your answer for density to 2 decimal places. Include the correct unit for density. Show your work
*May 18, 2011 by irtaza*

**Physical Sciance**

Calculate the density for a rectangular block using the following measurements, Length: 2.70cm, Width:1.10cm, Height: 9.09cm, Mass: 72.17g. Round your answer for density to 2 decimal places. Include the correct unit for density.
*February 26, 2008 by Devin*

**Science ASAP please**

1. Which of the following is an example of density? (1 point) ice floating on top of a river convection currents that cause wind oil spill cleanup all of the above 2. What type of property is density? (1 point) chemical property size-independent physical property all of the ...
*April 9, 2013 by Delilah*

**shakhenbi**

a block of metal has a length of 20cm, breadth 10cm and height 5cm. its mass is 2.7kg. find the density of the metal in g/cm3. find out what the block is made of.
*August 19, 2011 by tomba*

**physics**

a block of metal has a length of 20cm, breadth 10cm and height 5cm. its mass is 2.7kg. find the density of the metal in g/cm3. find out what the block is made of.
*August 19, 2011 by tomba*

**Physics**

1. The total length of a spring is 0.25 m. What it is unstretched and 0.30 m when a force of 17.82 N is applied to it. What will be the length when 26.72 N is applied to it? 2. A piller with a cross sectional area of 1.5 m^2 supports a portion of a building with a mass of 1.5 ...
*September 3, 2014 by Cielo*

**chemistry**

If a block of wood with the length 1.05 m, height 5.24 cm, and width 3.36 cm and a mass of 2.56 kg what is the density?
*April 12, 2009 by eve*

**chemistry**

What is the density of a block of unknown material with a mass of 19.07 g if the dimensions are: length = 3.1 cm height = 1.9 cm width = 4.6 cm
*September 24, 2012 by danyae*

**chemistry**

What is the density of a block of unknown material with a mass of 15.86 g if the dimensions are: length = 2.2 cm height = 1.7 cm width = 4.8 cm
*February 19, 2013 by kim*

**science**

What is the density of a block of unknown material with a mass of 13.26 g if the dimensions are: length = 2.2 cm height = 1.7 cm width = 4.1 cm
*February 20, 2013 by mariam*

**chemistry**

What is the density of a block of unknown material with a mass of 13.26 g if the dimensions are: length = 2.2 cm height = 1.7 cm width = 4.1 cm
*February 20, 2013 by mariam*

**chemistry**

What is the density of a block of unknown material with a mass of 17.02 g if the dimensions are: length = 2.2 cm height = 1.7 cm width = 2.7 cm
*February 16, 2014 by malb2*

**chemistry, i need help like a.s.a.p!!!!**

What is the density of a block of unknown material with a mass of 19.07 g if the dimensions are: length = 3.1 cm height = 1.9 cm width = 4.6 cm
*September 24, 2012 by danyae*

**Chemistry**

A block of metal has a width of 3.2 , a length of 17.1 , and height of 5.8 WHAT is the VOLUME OF THE BLOCK?
*August 28, 2008 by Beth*

**physics lab**

For a physics lab, I measured length, width, thickness, and mass of 2 blocks of wood, 3 trials each. There were 2 questions on the lab that I did not understand how to do. 1. For each trial, find the ratio between the mass and the volume. Based on your data, what is the ...
*September 1, 2006 by anonymous*

**chem**

what is the density of a block of unknown material with a mass of 11.56g if the dimension are length = 2.2cm, height =1.7cm, width =6.1cm
*September 4, 2014 by Anonymous*

**maths-urgent**

a metal block of length 4cm ,breadth 3cm and height 2.5 weighs 500g.what is the mass of a block of length 5cm,breadth 4cm made of the same metal.
*January 7, 2013 by manpreet*

**chemistry**

What is the density of a 23.92 g object block if the dimensions: length = 10.6 mm height = 5.47 cm width = 0.0352 m
*September 24, 2012 by danyae*

**chemistry**

What is the density of a 16.54 g object if the dimensions of the block are: length = 12.6 mm height = 1.91 cm width = 0.0140 m
*February 19, 2013 by kim*

**chemisty**

What is the density of a 17.12 g object if the dimensions of the block are: length = 12.6 mm height = 9.82 cm width = 0.0140 m
*February 20, 2013 by mariam*

**chemistry**

What is the density of a 19.74 g object if the dimensions of the block are: length = 12.6 mm height = 2.50 cm width = 0.0140 m
*February 16, 2014 by malb3*

**Fluid ''Physics''**

A block of metal floats in oil of density 700Kg/m3 with 3/4 of volume in mass. Find the density of metal.
*November 6, 2011 by Said *

**chemistry, i need helppp like a.s.a.p!!!!**

What is the density of a 23.92 g object block if the dimensions: length = 10.6 mm height = 5.47 cm width = 0.0352 m
*September 24, 2012 by danyae*

**physics**

A flexible metal sheet of length 6.0cm, breadth 5.00cm and the average thickness of 0.883cm has a mass of 23.00g. calculate the density of the metal
*October 18, 2012 by betty*

**Math**

The volume of a rectangular prism is 6x^3 -x^2 -2x. Which model could represent the rectangular prism? A. Height: 3x-2 Length: 2x+1 Width: x B. Height: 3x+2 Length: 2x-1 Width: x C. Height: 3x-2 Length: 2x-1 Width: x D. Height: 2x-2 Length: 3x+1 Width: x I don't understand how...
*January 29, 2016 by Student *

**Math, pre-algebra**

The volume of a rectangular prism is 6x^3 -x^2 -2x. Which model could represent the rectangular prism? A. Height: 3x-2 Length: 2x+1 Width: x B. Height: 3x+2 Length: 2x-1 Width: x C. Height: 3x-2 Length: 2x-1 Width: x D. Height: 2x-2 Length: 3x+1 Width: x I don't understand how...
*January 29, 2016 by Student *

**Science**

Calculate:what is the density of a metal block that has a mass of 750 grams and a volume of 55 cubic centimeters?
*October 12, 2011 by Faith*

**physics**

An object has a length of 5.0 cm, a height of 3.0 cm and a width of 15.0 cm. It has a mass of 24 grams. What is its density?
*January 26, 2010 by special*

**Math **

The height was 30, the width was 25,and the length is 20. What is the volume, in cubic inches, of the block of ice? I think you multiply 30x25x20 and get 15,000. The answer is 15,000 cubic inches. Harry wants to make another block of ice with the same volume. He needs one ...
*January 21, 2015 by Anonymous *

**Calculus**

Gloria would like to construct a box with volume of exactly 45ft^3 using only metal and wood. The metal costs $15/ft^2 and the wood costs $6/ft^2. If the wood is to go on the sides, the metal is to go on the top and bottom, and if the length of the base is to be 3 times the ...
*November 4, 2015 by Dave*

**physical science**

An object has a length of 5.0 cm, a height of 3.0 cm and a width of 15.0 cm. It has a mass of 24 grams. What is its density?
*November 23, 2010 by t.o*

**PHYSICAL SCIENCE**

An object has a length of 5.0 cm, a height of 3.0 cm and a width of 15.0 cm. It has a mass of 24 grams. What is its density
*September 11, 2012 by DEOCRIOUs*

**Chemistry**

Block A of an unknown metal has a volume of 125cm^3 . Block B of a different metal has a volume of 145cm^3. If block A has a greater mass than block B, what can be said if the relative densities of two metal?
*January 18, 2013 by Quan*

**Chemistry**

How do you do this? A block of metal measuring 3.0 cm X 4.0 cm X 5.0 cm has a mass of 470.0g. What is the density of the metal in grams per cubic centimeter?
*October 16, 2011 by Miranda*

**MATH!**

The length of a triangle is twice the width. The area is 32 square units. Find the length and width. I have the length of the triangle=2x and the width=x... so would the equation be 2x(x)=32 OR NO? Assume the "length" is the height measured from some side we will call the "...
*May 7, 2007 by megan*

**Physics**

Is this correct?? Metal block weighs 500g in air and 446g completely submerged in water. Calculate density and relative density. Density of water = 1000kg/m3 BF (Buoyant force) will be 500g-446g = 0.54 g (or 0.054 kg). For volume: If BF = Density(water)*V*g then V = BF/density...
*April 10, 2015 by Danny*

**chemistry**

what is the density of unknown material with a mass of 17.44g if the dimensions are length 2.2cm, height 1.7cm, and width 4.1cm
*September 17, 2013 by juan*

**Chemistry**

The Densities of Liquids and solids O.k. so here is my problem. I will give you the whole problem just incase my mistake is somewhere else, but the volume for the metal and the density for the metal in the end seem to be wrong. (Density of unknown liquid) Mass of empty flask ...
*August 22, 2007 by Sara*

**Chemistry**

a cube of metal has a mass of 1.45 kg. when the metal is placed into a graduated cylinder containing 356mL of water, the volume increases to 898 mL. calculate the density of the metal in g/mL
*July 2, 2013 by Colby*

**chemistry**

A block of metal is 6.88 cm long, 2.03 cm wide, and 1.85 cm high. It has a mass of 215.1 grams. What is the density of this metal. I've tried adding all the cm up and squaring them, dividing them, multiplying but i can't get the answer
*February 6, 2015 by paige*

**Physics CENTER OF MASS**

A thin rectangular plate of uniform areal density σ = 2.79 kg/m2 has length of 37.0 cm and width of 23.0 cm. The lower left hand corner is located at the origin, (x,y)= (0,0) and the length is along the x-axis. (a)There is a circular hole of radius 8.00 cm with center at...
*April 10, 2016 by Jesse*

**Pre Calc**

Given the sum of all the edges of the rectangular solid at the right is 76cm, the area of all of its faces is 228 cm^2, and its volume is 216 cm^3. Find its height, width and length. [hint- Let the height, width and length be the roots of a cubic polynomial x^3 + ax^2 + bx +c...
*September 12, 2010 by Emma M*

**physics**

A block of mass 4.253 kg is released on the track at a height 5.52 m above the level surface. It slides down the track and makes a head-on elastic collision with a block of mass 17.012 kg, initially at rest. The acceleration of gravity is 9.8 m/s2 . Calculate the height to ...
*October 27, 2010 by paul*

**Chemistry**

hmmm...I just can't seem to get it. It looks like I got it right up to the volume of the metal point. Don't I have to divide the mass of the metal by the density of the water given before? (0.9970)? I guess I am having a problem with this which results in the wrong answer for ...
*August 22, 2007 by Sara*

**science**

at a construction site a crane lifts a block of mass,m,vertically upwards through a height of 70 m at constant speed by means of a strong cable.The block experiences a force of magnitude 8 N as a result of air friction as it is lifted vertically upwards. The cable does 377 860...
*March 26, 2013 by Thalente*

**Chemistry**

O.k. I am confused. So here is what I did. Mass of empty flask plus stopper: 37.34g mass of stoppered flask plus water: 63.67g Mass of stoppered flask plus liquid: 52.01g Mass of water: 63.67 - 37.34= 26.33 Volume of Flask(density of H20 at 25*C, 0.9970 g/cm^3: (37.34g)/(0....
*August 22, 2007 by Sara*

**Chemistry**

mass of empty flask with stopper = 32.634 g mass of flask with water and stopper = 59.479 g density of the water = 0.9973 g/cm^3 mass of water = 26.845 g volume of water = 26.918 cm^3 the flask is then emptied and an unknown substance is added mass of flask with new liquid and...
*October 16, 2007 by Vanessa*

**Physics**

A block of mass m1 = 5.0 kg is released from A, at a height h = 9.0 m. It makes a head-on elastic collision at B with a block of mass m2 = 11.0 kg that is initially at rest. Calculate the maximum height to which m1 rises after the collision. the track is frictionless
*March 17, 2013 by Anonymous*

**PHYSICS CENTER OF MASS**

A thin rectangular plate of uniform areal density σ = 2.79 kg/m2 has length of 37.0 cm and width of 23.0 cm. The lower left hand corner is located at the origin, (x,y)= (0,0) and the length is along the x-axis. (a)There is a circular hole of radius 8.00 cm with center at...
*April 10, 2016 by Nancy*

**Algebra 2**

The width of a rectangular box is twice the height. Twice the length of the box exceeds the sum of the width and the height by 5in. Given that the sum of the length, width, and height is 16in, find the length, width, and height. I got, w=2h 2L=w+h+5 L+w+h=16 I don't know if ...
*November 17, 2015 by Coly*

**Algebra 2**

A rain gutter is made by bending up the edges of a piece of metal of width 36 in. If the length of the piece of metal is 24 in., find the height that maximizes the volume. I need all of the steps to get to the answer.
*April 22, 2011 by Brandon*

**physics**

A cubical block of density rB and with sides of length L floats in a liquid of greater density rL. (a) What fraction of the block’s volume is above the surface of the liquid? (b) The liquid is denser than water (density rW) and does not mix with it. If water is poured on the ...
*February 3, 2016 by mary*

**chemistry**

Block A of an unknown metal has a volume of 125 cm3. Block B of a different metal has a volume of 145 cm3. If block A has a greater mass than block B, what can be said of the relative densities of the two metals? (Assume that both blocks are solid.)
*September 1, 2014 by lexie*

**physics**

In the Figure the pulley has negligible mass, and both it and the inclined plane are frictionless. Block A has a mass of 1.3 kg, block B has a mass of 2.7 kg, and angle è is 26 °. If the blocks are released from rest with the connecting cord taut, what is their total kinetic ...
*March 22, 2009 by sweety*

**physics**

In the Figure the pulley has negligible mass, and both it and the inclined plane are frictionless. Block A has a mass of 1.3 kg, block B has a mass of 2.7 kg, and angle è is 26 °. If the blocks are released from rest with the connecting cord taut, what is their total kinetic ...
*March 22, 2009 by nicks*

**Math**

A piece of metal is bent into a rectangle and has a length which is 5 times as long as its width. If the perimeter of the piece of metal is 13 feet 6 inches, find the length and the width of the piece of sheet metal. You must use a variable , write an equation and solve the ...
*May 16, 2008 by Jon*

**college chem**

In this experiment a hot metal block at 100oC is added to cold water in a calorimeter. The heat lost by the metal block equals the heat gained by the water and the two end up at the same temperature. In one experiment, the mass of the metal block is 89.5 grams, the volume of ...
*October 8, 2009 by Sarah*

**Math: Geometry **

Joe is making a toy from a rectangular block of wood. He drills two holes, each with diameter 1.4 cm, through the block. The block of wood has length 15 cm, width 8 cm, and height 5 cm. a)What is the volume of the block before the holes are drilled? b)What is total volume ...
*April 6, 2015 by Thomas Simmons *

**Physics, Desperate Need of help!**

Gold, has a mass of 19.32g for wach cubic centimeter of volume, is most ductile metal and can be pressed into a thin leaf or drawn out into long fiber. -If a sample of gold, with a mass of 27.63g is pressed into a leaf of 1.000micometers thickness, what is the area of the leaf...
*August 31, 2006 by krystal*

**Physics**

A paladin howitzer fires a 46.00 kg projectile towards a 1000 kg metal block resting on a frictionless surface. Just before impact, the projectile is traveling with a horizontal velocity of 529 m/s. After the collision, the embedded projectile and the metal block move along ...
*February 2, 2015 by Samiboo711*

**physics**

In the Figure the pulley has negligible mass, and both it and the inclined plane are frictionless. Block A has a mass of 1.3 kg, block B has a mass of 2.7 kg, and angle è is 26 °. If the blocks are released from rest with the connecting cord taut, what is their total kinetic ...
*March 22, 2009 by sweety*

**physics**

In the Figure the pulley has negligible mass, and both it and the inclined plane are frictionless. Block A has a mass of 1.3 kg, block B has a mass of 2.7 kg, and angle è is 26 °. If the blocks are released from rest with the connecting cord taut, what is their total kinetic ...
*March 22, 2009 by nirali*

**physics**

A block of ice of mass 4.10 kg is placed against a horizontal spring that has force constant k = 210 N/m and is compressed a distance 2.60×10−2 m. The spring is released and accelerates the block along a horizontal surface. You can ignore friction and the mass of the ...
*October 7, 2010 by ami*

**Science**

Jake was doing a lab to find the density of metal. Here's his data: mass of the metal sample: 45 grams, volume of metal sample: 4.5 mL. Use his data to determine the density of the metal sample. Can you help? I don't get this.
*October 7, 2010 by Haley*

**Chemistry**

length in cm of one side of perfect cube of gold with a density of 18g/cc and mass of 25g? How would i set up this equation? I don't know what length formula I would use, because I know that i am not supposed to just divide the density by the mass, because that would be ...
*September 24, 2011 by Bob*

**physics**

The density of an unspecified material is 3.27 g/cm (cubed) . if the mass of a block of this material is 10.9kg, what is the volume of the block in cubic meters? A Wooden block is pulled to the right across a level surface at a constant velocity by a force of 47 Newtons, the ...
*May 24, 2012 by Jen*

**Chemistry**

You discover a chunk of white shiny metal and want to know what it is made of. So, you have it analyzed by mass spectrometry and you see two peaks of different heights, according to the data shown below: Peak 1 - mass (amu): 106.90509 -relative peak height (%): 53.875% Peak 2...
*October 21, 2015 by Anonymous*

**chemistry**

a block of metal with dimensions of 5.6 cm and 11 cmm weights 5.55 kg.what is the density of the metal
*February 6, 2015 by Anonymous*

**Science**

a sample of an unknown metal has a mass of 21.6g and a volume of 8.00cm^3 . calculate the density of the unknown metal
*February 23, 2013 by Stefan*

**physics**

A block of unknown mass is attached to a spring with a spring constant of 6.00 N/m and undergoes simple harmonic motion with an amplitude of 12.0 cm. When the block is halfway between its equilibrium position and the end point, its speed is measured to be 33.0 cm/s a)Calculate...
*April 27, 2009 by Jessi*

**physics**

A block of mass m is held against a spring of spring constant k which is compressed a distance Ax. On the shaded region (d = 2 m), there is a coefficient of kinetic friction = 0.3 microcontroller, which then applies the rest of the course takes place without friction. The loop...
*November 17, 2011 by sarah*

**physics**

Find the center of mass of a rectangular plate of length 10 cm and width 39 cm. The mass density varies linearly along the length. At one end, it is 8 g/cm2; at the other end, it is 18 g/cm2. (Assume the x-axis begins at the 8 g/cm2 edge and extends along the length. Assume ...
*October 11, 2011 by mymi*

**Physics**

1. You are tasked to design a car park on the top floor of a condominium that can accommodate 10 cars, each car has a maximum mass of 2000 kg. The material you are using can withstand a pressure of 500 N/m^2. Calculate how large your park must be? 2. Cheryl filled a measuring ...
*September 3, 2014 by Mei*

**Math**

Calculate the length of the diagonal for the given rectangular prism. Length: 10 cm Width: 4 cm Height: 10 cm
*February 13, 2013 by The Dark Knight*

**Science Density**

Water has a density of 1.0g/cm3. Aperson sits in a bath 150cm in length and 90 cm width. Thw water had a depth of 60cm befor the person sat in the bath. after sitting in the bath the water level rose to 68cm. Calculate the mass of the person, giving your answer in kg.
*October 22, 2014 by Jess*

**Physics**

Find the center of mass of a rectangular plate of length 28.6cm and width 14.3cm . The mass density varies linearly along the length. At one end, it is 6.79g/cm^2,at the other end, it is 35.3g/cm^2 Show steps and explanation in X and Y
*October 18, 2013 by Vinh*

**Physics**

A metal of block of mass 10kg lies on a rough plane, horizontal force of 8n applied to the block through it's centre of mass just slides the block on the plat form. What is the coefficient of limiting friction between the block and the plat form.
*October 18, 2015 by Akumka patricia*

**Algebra**

The volume of a rectangular box is given by the formula V = lwh, where l is length, w is width, and h is height. What happens to the volume if the length and height are doubled and the width is tripled? I don't know how to solve this problem at all. Thank you for your help!
*March 23, 2009 by Cassie*

**physics**

at on time, the velocity of a rifle bullet was measured using a ballistic pendulum made up of a wooden block suspended from a string. the block used here has a mass of 20kg. a 50g rifle bullet is fired into the block, penetrating it by 10cm and causing it to swing upwards, ...
*September 2, 2010 by dave*

**Math**

The sum of the length, width, and height of a box is 80 cm. The length is 10 cm less than twice the sum of the width and the height, and twice the width exceeds the height by 6 cm. Find the height of the box.
*August 25, 2015 by Anonymous*

**physics**

A metal block of mass 5kg lies on a rough horizontal platform.If a horizontal force of 8N applied to the block through its centre of mass just slides the block on the platform,then the coefficient of limiting friction between the block and the platform is
*February 24, 2013 by Kenny*

**MATH help**

A box with no top is to be constructed from a piece of cardboard whose Width measures x inch and whose length measures 3 inch more than the width the box is to be formed by cutting squares that measure 1 inch on each side of the 4 corners and then folding up the sides If the ...
*September 18, 2011 by HM*

**physics**

Consider a frictionless track as shown in Figure P6.48. A block of mass m1 = 4.30 kg is released from A. It makes a head on elastic collision at B with a block of mass m2 = 9.00 kg that is initially at rest. Calculate the maximum height to which m1 rises after the collision.
*July 16, 2010 by luke*

**PHYSICS _ please help**

A metal block of volume 1 * 10^3 cm^3 is suspended from a thread as shown in the diagram. It is lowered into a beaker of liquid of unknown density until it is completely immersed but does not touch the bottom of the beaker. The beaker rests on a balance. The reading of the ...
*August 9, 2011 by GAIL*

**physics**

Consider a frictionless track as shown in the figure below. A block of mass m1 = 4.25 kg is released from A. It makes a head on elastic collision at B with a block of mass m2 = 10.0 kg that is initially at rest. Calculate the maximum height to which m1 rises after the collision.
*October 17, 2010 by sam*

**physics**

Consider a frictionless track as shown in the figure below. A block of mass m1 = 4.20 kg is released from A. It makes a head on elastic collision at B with a block of mass m2 = 9.00 kg that is initially at rest. Calculate the maximum height to which m1 rises after the collision.
*February 17, 2012 by john*

**Math Alex **

Calculate the length of the diagonal for the given rectangular prism. Round to the nearest tenth length 10 com width 4 height 10
*February 24, 2013 by alex*

**chemistry**

I have two problems that I'm stumped on. I know the correct anwers but I'm having problems coming up with the co rrect anwsers. Here are the problems: 1) Magnesium has a density of 1.7g/cm^3 and iron has density of 7.9 g/cm^3. A block of iron has a mass of 819g. What is the ...
*September 29, 2007 by pat*