A metallic bond is a bond between two metals or cations. In metallic bonding, the electrons are shared between the positive ions. The electrons move around between atoms. This is what allows objects with metallic bonds to be malleable and able to conduct electricity.
Answer is "<span>the
oxidizing agent receives electrons from the reducing agent</span><span>".
There are two types of reactants in redox reactions. One is oxidizing agent and
other is reducing agent.
Oxidizing agent is a substance which helps to oxidize other substance by
gaining electrons. This is also called as oxidizer. Due to the gaining
electrons, oxidizing agents tend to be reduced.
Reducing agent or reducer helps to reduce other substance while loosening
electrons. Hence, reducing agents tend to be oxidized.</span>
D=density
m=mass
v=volume
d=m/v
m=176 g
v=(4 cm)³=64 cm³
d=176 g/64 cm³=2.75 g/cm³
The desnity of the aluminum is 2.75 g/cm³
Answer:
Explanation:
You can deal with this question using two different but related approachs.
1) <u>First approach: 1 mole of gas at 1 atm and 0°C occupy 22.4 liter</u>.
With that you can set a proportion:
- 1 mole / 22.4 liter = 2.00 / V
⇒ V = 2.00 mole × 22.4 liter / 1 mole = 44.8 liter.
<u>2) Second approach: use ideal gas equation:</u>
⇒ V = nRT / p
- V = 2.00 moles × 0.0821 atm-liter / K-mol × 273.15 K / 1 atm = 44.85 liter ≈ 44.9 liter.
There, the two calculations yield the same result, although the second one is more accurate only if you need to use 3 or more significant digits, which is not correct in this case.
If you measure the presure as 1.0 atm (two significant digits) and the temperature as 0.0 °C (two significant digits), the volume must be resported with two significant digits, which yileds to the same result with both calculations: 45 liter.
