Evolution can not be tested by experiment given that it depends largely on observations that fit into a wider scope and point to a common conclusion.
<h3>Can evolution be proven empirically?</h3>
Science is know to be empirical, In science, the evidence that backs up a claim is what establishes it as true or false. Thus all theories must be tested by experiment.
However, the theory of evolution can not be tested by experiment given that it depends largely on observations that fit into a wider scope and point to a common conclusion. In other words, evolution lies “outside of empirical science”.
The fact that it can not be directly proven empirically does not necessarily make it out to be false. That was the conclusion of Paul Ehrlich in his 1967 article.
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Answer:
1)Pb(NO3)(aq) + MgSO4(aq)------> Mg(NO3)2(aq) + PbSO4(s)
2)Mn(NO3)2(aq) + 2KOH(aq) ----->Mn(OH)2(s) + 2KNO3(aq)
3)Zn(s) + 2H^2+(aq)----->Zn^2+(aq) + H2(g)
4) Cu(s) + 2Ag^+(aq) ---->Cu^2+(aq) + 2Ag(s)
Explanation:
A double replacement reaction is one in which ions exchange partners.
We can see that the ions in the reactants exchanged their partners in the products. Solid lead II sulphate was precipitated.
Reaction 2 is a single replacement reaction. Solid manganese hydroxide is formed.
Reactions 3 and 4 are redox processes as shown in the respective equations.
Molar mass of H2SO4 = 2*1 + 1*32 + 4*16 = 98g
mass of 2 moles of H2SO4 = 98*2 = 196g
2 H2 + O2 = 2 H2O
1 mole O2 --------------- 2 moles H2O
13.35 moles O2 -------- ( moles H2O)
moles H2O = 13.35 x 2 / 1
<span>= </span>26.7 moles of H2O
<span>hope this helps!</span>