Which substance is a product of a fermentation reaction?

a - glucose

b - zymase

c - ethanol

d - water

How much heat is needed to raise the temperature of 50g of a substance by 15c when the specific heat is 0.92?

Calculate both the number of moles in a sample of chromium containing 5.00 1020 atoms and the mass of the sample.

Why is activation energy required to start some reactions? A.) to break the bonds of an endothermic reaction B.) to overcome electron repulsion of an endothermic reaction C.) to overcome electron repulsion of an exothermic reaction D.

The phosphate functional group in the non cyclic amp molecule answer

For a given amount of matter, this type of reaction produces the most energy. A. fusion B. fission C. physical D. chemical

Henry Moseley organized the periodic table by A. atomic weight. B. atomic number. C. electronegativity. D. overall charge of atoms.

What happens when elements chemically combine? A.) All elements retain their original properties B.) New properties are former C.) Only metals retain their original properties D.) New elements are formed

Which element consists of positive ions immersed in a "sea" of mobile electronsa) sulfur b. nitrogen c. calcium d. chlorine?

1.87e3 m + 24 m + 5.43e-1 km + 1.561e2 km = km

Which 2 continents have the most obvious fit of the coastlines. subject science