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The basic unit of a chemical unit

If a neutral compound is composed of carbon and hydrogen and you know that it has exactly 2 carbons connected by a double bond, how many hydrogens will the compound have? A. 4 B. 8 C. 2 D. 6

Para balancear una ecuacion quimica se cuenta el numero de:

The activation energy for the reaction no2 (g) + co (g) ⟶no (g) + co2 (g) is ea = 400 kj/mol and the change in enthalpy for the reaction is δh = - 250 kj/mol. what is the activation energy for the reverse reaction?

Which of these themes is most closely related to the harlem renaissance

Which of the following statements is true? Question 5 options: Nuclear decay rates vary with the conditions of the reaction, but chemical reaction rates do not.

In which group is an element that has an outer-level electron configuration consisting of one electron in the nd orbital and two electrons in the ns orbital?

List two non-SI units for volume, and explain how they relate to the cubic centimeter.

G which atomic orbitals overlap to form the carbon-carbon σ bonding molecular orbital of acetylene, c2h2?

Where did the earth hold most of its original water