Which part (s) of a telephone involves the conversion of sound waves to electrical signals?

a) the microphone

b) neither the speaker nor the microphone

c) the speaker

d) both the speaker and the microphone

sodium azide is an ingredient often added to the medium to select for certain types of bacteria. this compound inhibits components of the respiratory electron transport chain.

Given the balanced equation representing reaction: N2 + energy = = > N + N Which statement describes this reaction? (I) Bonds are broken, and the reaction is endothermic. (2) Bonds are broken, and the reaction is exothermic.

71.89 g CO2 = _g C6H12O6

How did the gold foil experiment lead to the discovery of the nucleus?

The atomic number of an element is always the same as ___ A. The number of electrons B. The number of protons C. The number of neutrons D. The number of protons plus neutrons

What is the relative formula mass for ammonium sulphate

How to find h30 in 0.08m

Nitroglycerin (c3h5n3o9) is a powerful explosive. its decomposition may be represented by 4c3h5n3o9 → 6n2 12co2 10h2o o2 this reaction generates a large amount of heat and gaseous products.

A 3-column table with four rows. The first column has entries Liquid A, Liquid B, Liquid C, Liquid D. The second column titled mass has entries 160 grams, 173 grams, 198 grams, 220 grams.

Which option correctly describes the influence of electronegativity difference on bond character?