Hey there!
To find this, you should:
1) multiply the percentage (but in a decimal form) of each isotope by the mass.
2) add all your masses together
3) make sure to check for significant figures and you’re done!
Hope this helps :)
The best answer would be sedimentary rock because it forms from seiment and layers.
not until 9/17. it was the longest shutdown since 1933
A. It is Basic
for example,
NaOH → Na⁺(aq) + OH⁻(aq)
Ba(OH)₂ → Ba²⁺(aq) + 2OH⁻(aq)
Ca(OH)₂ → Ca²⁺(aq) + 2OH⁻(aq)
pH>7
