The answer to your question is THE HUMAN EYE CAN ONLY PERCEIVE A NARROW RANGE OF WAVELENGHTS
Answer: Use c1(v1) = c2(v2) to solve<span> that </span>problem. 87%(200) = (35.5<span>%)v2 v2 ≈ 490.5. I hope this helps! Source(s)</span>
Answer:
a)there would be no reaction
Explanation:
The activity series of metals has many functions. The one applicable to this problem is that it can be used to determine whether a reaction will occur or not. Also, based on the positions of metals in the series, we can know how reactive a metal is compared to another.
In a single displacement reaction, a metal replaces another metal based on their position on the activity series. Metals that are higher in the series are generally more reactive than others below them and so will displace them.
Would aluminum replace magnesium to form a new compound or would there be no reaction?
Magnesium is higher than aluminum in the activity series. Therefore it is more reactive than aluminum. No reaction will occur.
<span>Avogadro's constant/number is 6.022 Ă— 10^23 molecules for every 1 mole of substance.
And reaction produces 0.875 moles of h2o.
So,
Number of molecules produced = Avagardo's number x Number of moles of h2o produced.
Number of molecules produced = (6.022 Ă— 10^23) x (0.875)
Number of molecules produced =5.26925 Ă—10^23 molecules.</span>
Answer:
they use echos to communicate
Explanation: dolphins make echos in order to signal there partners, and others in there pod. or they can use it to signal for prey, or signal that they are in trouble.