It's the rows. They are periods. (1,2,3,4,5,6,7 - the ones without the letters).
75km/hr
A car traveling with constant speed travels 150km in 7200 s. What is the speed of the car
Homogeneous mixture<span>steel
</span>element<span>sodium
</span>mixture, homogeneous<span>brass
</span>
Answer:
An element that is oxidized is a reducing agent, because the element loses electrons, and an element that is reduced is an oxidizing agent, because the element gains electrons.
