A compound (C7H14O) has a strong peak in it’s IR spectrum at 1710 cm-1. It’s 1H NMR spectrum consists of only three singlets in the ratio 9:3:2 at δ = 1.0, 2.1, 2.3 ppm respectively. Identify the compound.

Pls! plant cells and animal cells were observed under a microscope. the characteristics of two cells are listed below. cell p: does not capture sunlight cell q: has cytoplasm but no chloroplast which statement about the two cells is correct? cell q also has a cell wall. cell q also has large vacuole. cell p also has a large vacuole. cell p also has a cell membrane.

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

What is true for a substance that releases energy