Consider the balanced equation below.
2h2s + 302 > 2802 + 2h2o
which option gives the correct mole ratios?
h2s so2 = 2 2 and 02: h20 = 3: 2
h2s so2 = 2 3 and o2: h20 = 3: 2
h2s so2 = 4: 4 and 02: h20 = 5: 4
h2s so2 = 4: 6 and o2 h20 = 4: 4

Use addition and subtraction to simplify the following polynomials. a. add polynomials: (3 – 4x + 8x^2) + (–6 + 2x – 5x^2) step 1: rewrite the polynomials without the parentheses. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial. b. subtract polynomials: (3x – 5 – 7x^2) – (–2 + 6x^2 – 5x) step 1: rewrite the polynomials without the parentheses. remember to multiply each term in the second parentheses by –1. show your work. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial.

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

Find the multiplicative inverse of 8-12i