Answer:
I thinks it's c
Explanation:
cold air is denser than hot air so it sinks.
You would<span> have to </span>measure<span> all of </span>the<span> light and heat energy and use E=mc</span>2<span> to calculate </span>the<span> remaining</span>mass<span>. ... </span>After<span> accounting for </span>the<span> increase in </span>mass<span> due to </span>the<span> constituents binding with oxygen as MrSmellard pointed out and allowing </span>the<span> log to cool to </span>its<span> original temperature, </span>the mass<span> of </span>the<span> log will have ...</span>
A. in a polar bond, electrons are shared
Answer:
3
Explanation:
The reaction expression is given as:
Al(OH)₃ + HNO₃ → H₂O + Al(NO₃)₃
To solve this problem, let us assign coefficient a,b,c and d to each specie;
aAl(OH)₃ + bHNO₃ → cH₂O + dAl(NO₃)₃
Conserving Al : a = d
O: 3a + 3b = c + 9d
H: 3a + b = 2c
N: b = 3d
let a = 1 , d = 1, b = 3 , c = 3
Multiply through by 3;
a = 1, b = 3, c = 3 and d = 1
Al(OH)₃ + 3HNO₃ → 3H₂O + Al(NO₃)₃
Answer:
Apparent magnitude
Explanation:
By definition, Apparent magnitude which is usually denoted by "m" is the measure of the brightness of a star or even other astronomical objects that are observed from Earth. Meanwhile the absolute magnitude is defined as the intrinsic luminosity emitted by a star or other astronomical objects.
Thus, apparent magnitude is correct.