1.) the density of iron is 7.8 g/cm3 and that of aluminum is 2.7 g/cm3. using a balance, you find that a block of iron has the same mass as a block of aluminum. which block has the larger volume? question 15 options: you cannot tell from the information given. the volumes are the same. the iron block the aluminum block 2.) iron combines with oxygen and water from the air to form rust. if an iron nail were allowed to rust completely, you should find that the rust weighs question 20 options: less than the nail it came from the same as the nail it came from more than the nail it came from it is impossible to predict. 3.)what is the reason for your answer to the last question? question 21 options: rusting makes the nail lighter. rust contains iron and oxygen. the nail flakes away. the iron from the nail is destroyed. the flaky rust weighs less than iron.
Solved
Show answers
More tips
- H Health and Medicine Which Water Are You Drinking? Is it Worth Buying Bottled Water?...
- A Animals and plants Уход за джунгариками: полезные советы и рекомендации...
- L Legal consultation What Documents Are Required for a Russian Passport?...
- S Sport How to Choose Tennis Rackets?...
- H Health and Medicine AKDS Vaccination: Ensure Your Child s Safety...
- H Health and Medicine Naskol ko Opasen Ukus Kleshcha i Kak Ego Raspoznat...
- C Computers and Internet How to Delete Your Account on Odnoklassniki...
- H Health and Medicine What to Do When Your Jaw Locks Up?...
- G Goods and services What Are the Most Popular Services?...
Answers on questions: Chemistry
- C Chemistry In this lab, you are to carry out the formation of a Grignard reagent from 1-bromo-benzene andits subsequent reaction with solid carbon dioxide (CO2) followed by acidic workup (using...
- M Mathematics Plz help I tried and got it wrong...
- M Mathematics Abox of ice cream bars cost 1.50 after a 25% discount what was the original price of the box of ice cream bars...
- P Physics Trolleys X and Y of masses m and 3m respectively are travelling at the same speed towards each other. The trolleys collide and move off together. Choose the correct answer....
Ответ:
1.) The aluminum block
2.) more than the nail it came from
3.) Rust contains iron and oxygen
Explanation:
1.)
Mass, Density, and Volume are related by the following equation;
Mass = Volume*Density
Solving for volume;
Volume = Mass/Density
If Mass is constant then;
Volume ∝ 1/Density ; That is volume and density will be inversely proportional. The larger the volume the smaller the density
2.)
If an iron nail were allowed to rust completely, you should find that the rust weighs more than the nail it came from since Iron combines with oxygen and water from the air to form rust.
3.)
Rust contains iron and oxygen.
Rust is composed or made up of hydrated iron(III) oxides Fe2O.
Ответ: