Nguyên tử R có tổng số hạt cơ bản là 58 ,trong đó tỉ lệ giữa số notron so với số khối là 20/39.Cho biết số hạt mỗi loại trong R và kí hiệu nguyên tử R?

A650 ml sodium bromine solution has a bromide ion concentration of 0.245 m. what is the mass (g) of sodium bromide in solution? a) 103.b)0.00155.c)16400.d) 16.4.e) 0.159

What is the oxidation state of each individual carbon atom in c2o42−?

Can someone check my work 98 5.05 acids and bases for this assignment you will be comparing acids and bases. the chart below will you organize the information needed: acids bases chemical properties (2) deodorant detergent vinger dish soap physical properties (2) orange juice toilet cleaner drain cleaner window cleaner ph level acid ph goes from 0-4 bases ph goes from 10-14 examples around you (2) vinger coffee lemon juice dark chocolate