Your answer is C forms of the same element that differ in the number of neutrons in each atom because if the number of neutrons change the whole element changes.
Answer:
he pH of a solution is defined as the negative log10 [H+] ... 1 x 10-11. 11. Acidic Solution. 1 x 10-4. 4. 1 x 10-10. 10. 1 x 10-5. 5. 1 x 10-9.
Explanation:
m
Alloys are mixtures of metals and other elements, which still keeps many characteristics of metal.
Alloys are sometimes desirable as they have some properties that the original metals don't, for example more flexibility or less fragility. Steel is such an alloy: it prevents movement of iron parts, making it stronger.
Answer:
<u><em>5.74M or 5.74 mol/L (to 3 sign. fig.)</em></u>
Explanation:
The molar mass of NaNO3 is 85g/mol, which means that:
1 mole of NaNO3 - 85g
? moles - 122.0g
= 122/85 = 1.44 moles
Concentration in mol/L = no. of moles (moles) ÷ volume (L)
=<em> 5.74M or 5.74 mol/L (to 3 sign. fig.)</em>
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<em>I hope the steps are clear and easy to follow.</em>
KHP (aq) + NaOH(aq) ---> KPNa (aq) + H2O(l)
Moles of KHP = 
Moles of NaOH = 
Molarity of NaOH = 
