Homework Help: Science-Chemistry

Posted by Sara on Tuesday, April 27, 2010 at 11:59pm.

A student has blocks of four different materials of identical mass. The materials are ice, gold, aluminum, and Styrofoam. Which blocks would have the largest volume?

Would it be gold?

Also this other question:

What is the total number of atoms in a single unit of the compound Ga(OH)^3?

Thank you very much for all of your help;-)

Science-Chemistry - DrBob222, Wednesday, April 28, 2010 at 12:08am
The idea in the first question is to reason through it. What do we know about mass, volume, density? Since mass = volume x density, then
volume = mass/density; therefore, the highest density will be the smallest volume and the lowest density will have the largest volume. right?
The question tells us mass is exactly the same; therefore, the volume MUST depend upon the density.
What do you know about the densities of ice, aluminum, gold, and Styrofoam?

2nd question:
A single unit of Ga(OH)3. That means one molecule. There will 1 Ga atom and 3 O atoms and 3 H atms for a grant total of 1 + 3 + 3 = ??

Answer this Question

Related Questions

science - does it take 96 percent less energy to make an aluminum can from ...
Biology - Can you give me an order from 1 to 3 for the following materials, 1 ...
Science - Identify 5 different materials that you encounter or use on a daily ...
physics - Which of the following objects will float in a tub of mercury? a. a ...
Reading - When you're scribbling a note with a pencil, do you ever wonder ...
chemistry-calorimetric - Develop a detailed calorimetric method for determining ...
PHYSICS HELP - A solid cylinder has an area of 10cm2 and a height of 1.0 m. The ...
Science - PLEASE HELP Science Test Friday Study Guide? I have 1 to 22 already ...
Science - PLEASE HELP Science Test Friday Study Guide? I have 1 to 22 already ...
Chemistry - A homogenous mixture of metals is called an alloy. An alloy is found...

For Further Reading

First Name:
School Subject:
Answer: