Answer:
7.3 × 10¹ m²
Explanation:
The language "product" means that we must multiply the numbers given to get our answer.
9.0 × 10⁻⁴ m × 8.1 × 10⁴ m = 7.3 × 10¹ m²
The significant figures rule for multiplication is that we must us the amount of significant figures in the number with the least significant figures, in this question this is 2 significant digits from both 9.0 × 10⁻⁴ m and 8.1 × 10⁴ m.
Answer:
body mass index
Explanation:
it is the property by which the floating and sinking of body depends
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 .
<u>Salient Features</u> :-
- 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.
<u>The metal reactivity series is given below</u> :-
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
Hi sorry
I don’t know
but maybe next time