Lead<span> (/lɛd/) is a chemical </span>element<span> in the carbon </span>group<span> with symbol Pb (from Latin: plumbum) and atomic </span>number<span> 82.
~ I don't know if this will help, but I hope it does. ~</span>
It is the R group or the variable group that determines the chemical properties of alcohols and amines. Depending on the number of polar and non polar groups and other molecular parts.
Answer:
Universal indicator is a mixture of many different indicators which gives different colours at different pH values of the entire pH scale. It is used to obtain an idea of how acidic or basic a substance is.
Answer:
2.409 x 10²⁴
Explanation:
There are two nitrogens for every mole of NH₄NO₃
Since there are two moles, that means there are 4 nitrogens
There are 6.022 x 10²³ atoms in every mole of any element
(6.022 x 10²³) x 4 = 2.4088 x 10²⁴
Use sig figs to round it to 2.409 x 10²⁴
Net ionic equation:
Be(2+) + 2OH(-) ----> Be(OH)2
:-) ;-)
