1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alexandr1967 [171]
3 years ago
5

aluminum has a density or 2.7g/cm3. copper has a density of 8.96/cm3. which metal would you choose to build a model airplane?

Chemistry
1 answer:
erik [133]3 years ago
7 0

Answer: Aluminium

Explanation: Aluminium metal has a lower density than copper. So, for the same volume of metal used to build a model airplane, the aluminium plane would be very lightweight while that of copper would be heavy.  The lightweight airplane will fly easily.

You might be interested in
If aqueous solution of lead (ll) nitrate and sodium sulfate, which insoluble precipitate is formed
forsale [732]

Answer:

Lead(II) sulfate

Explanation:

This looks like a double displacement reaction, in which the cations change partners with the anions.

The possible products are

Pb(NO₃)₂ (aq)+ Na₂SO₄(aq) ⟶PbSO₄(?) + 2NaNO₃(?)

To predict the product, we must use the solubility rules. Two important ones for this question are:

  1. Salts containing Group 1 elements are soluble.
  2. Most sulfates are soluble, but PbSO₄ is an important exception.

Thus, NaNO₃ is soluble and PbSO₄ is the precipitate.

7 0
3 years ago
What’s the Difference between attractive forces and ionic/covalent/metallic bonds
Deffense [45]

Answer:

Explanation:The main difference between ionic covalent and metallic bonds is their formation; ionic bonds form when one atom provides electrons to another atom whereas covalent bonds form when two atom shares their valence electrons and metallic bonds form when a variable number of atoms share a variable number of electrons in a metal lattice.

7 0
2 years ago
How many elements are found in the following chemical equation? K + Cl → KCl
KengaRu [80]
There are 2 elements in the equation that form a product
8 0
3 years ago
Read 2 more answers
What is it called when particles travel from an area of high consentration to an area of low consentration?
Umnica [9.8K]
If it isn't using energy, it's called diffusion
8 0
3 years ago
4. Biotic factors that affect other organisms in an ecosystem include all but which of the following factors? a. Symbiosis b. Pr
GenaCL600 [577]

I think its d but im not sure

5 0
2 years ago
Other questions:
  • Convert: 20.9 mL = ___L<br> 2.09<br> 0.209<br> 0.0209<br> 209<br> 20.9
    11·1 answer
  • How many grams of KBr are required to make 550. mL of a 0.115 M KBr solution?
    12·1 answer
  • Molecular shape of XeOF4​​
    8·1 answer
  • What percentage of gases are in the earth?
    11·1 answer
  • A total of 2.00 mol of a compound is allowed to react with water in a foam coffee cup and the reaction produces 146 g of solutio
    8·1 answer
  • calculate the standard potential arising from the reaction in which NADH is oxidized to NAD and the corresponding biological sta
    5·1 answer
  • Why is force and Velocity different??
    11·2 answers
  • A car with a mass of 3,500lbs accelerates negatively from 35m/s to 8m/s in 8s. What is the
    14·1 answer
  • The diagram shows an early model of the atom. It was suggested by JJ Thompon. The atom was thought to be positively charged
    10·2 answers
  • Name the type of reaction involved in the conversation of ethanol to Ethan​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!