The substance is a metal, mainly iron or copper.
<h3><u>Explanation:</u></h3>
Metals are classified as those elements which have a strong structure, hard, malleable, ductile, sonorous and have high heat and electricity conductivity.
Metals are not soluble in water in atomic state because they are in crystal forms which are very hard to be broken by water.
They are conductor for both heat and electricity. Metals have free electrons in their outermost shell which can be free in the lattice which helps to conduct electricity even in molten state.
And metals do usually have very high melting points. So they aren't easy to melt at all. Main conductors that are used are iron and copper.
Answer:
The answers to your questions are below
Explanation:
Physical change is when matter changes its form but is still the same substance.
Chemical change is when matter changes its composition.
iron and oxygen from rust It's a chemical change because iron and oxygen form a new compound different from the reactants.
iron is denser brightly when ignited
. This is a chemical property because iron reacts with oxygen.
oil and water do not mix
it's a physical change, oil and water are in touch but they do not react.
mercury melts at -39°C it's a physical property because mercury changes from solid to liquid but it still is mercury.
The density of water is about 1kg/m³, therefore is the substance has a density of less than 1kg/m³ then it will most likely float however if it is more than 1kg/m³ then it will most likely sink.
Based on Heisenberg's uncertainty principle, the position and velocity of a particle cannot be determined simultaneously with accuracy.
In other words, Heisenberg's uncertainty principle states that the more accurately we know the position of a particle the less accurately we can know its velocity. Mathematically it is given as:
Δx.mΔv >= h/2π
where: Δx = uncertainty in position
m = mass
Δv = uncertainty in velocity
h = plancks constant
Hello,
Your brainliest answer would be:
1A. Both involve ion movements
1B. Passive transport moves ions from high concentration to low, using no metabolic energy.
2A. Both passive transport processes.
2B. Diffusion refers to the movement of any chemical from one place to another, whereas osmosis exclusively from one place to another.
Plz mark me brainliest!
Hope this helps!
