The greater the electronegativity difference between two atoms bonded together, the greater the bond's percentage of

Please help! its due at the end of class.

Vera_Pavlovna [14]

Answer:

2.down is hypotheses and 23.across is experiment

Explanation:

akechis pancakes

5 0

3 years ago

A cylindrical rod has a length of 27 cm and a diameter of 1.6 mm. What is the cross-sectional area in 10-6 m2?

MrRa [10]

Answer: The cross-sectional area of the cylindrical rod is $2.01\times 10^{-6}m^2$

Explanation:

We are given a cylindrical rod whose cross-sectional area will be in the form of circle.

To calculate the area of circle, we use the equation:

$\text{Area}=\pi r^2$

where,

r = radius of the rod = $\frac{d}{2}=\frac{1.6mm}{2}=0.8mm=0.8\times 10^{-3}m$ (Conversion factor: 1 m = 1000 mm)

Putting values in above equation, we get:

$\text{Area}=3.14\times (0.8\times 10^{-3})^2\\\\\text{Area}=2.01\times 10^{-6}m^2$

Hence, the cross-sectional area of the cylindrical rod is $2.01\times 10^{-6}m^2$

8 0

3 years ago

What is reacitivty series, and how you can access reactivity of metals...

lubasha [3.4K]

In Chemistry, a reactivity series of metals , also known as the activity series refers to the arrangement of metals in the descending order based upon their reactivity .

Salient Features :-

The metal at the top of the reactivity series are powerful reducing agents since they are easily oxidized.
The reducing ability of metals grows weaker while traversing down the series.
The electro-positivity of metals also reduces while moving down the reactivity series.
Metals that are placed higher on the reactivity series have the ability to displace metals that are placed lower in the series.

The metal reactivity series is given below :-

To access the reactivity of metal , from the given reactivity series identify any of the metal and locate the reactivity based upon the choice of reactivity. The metal at the top (Potassium) is most reactive and the metal at the bottom (Platinum) is the least reactive.

To learn more about metal reactivity series visit -

brainly.com/question/16072297