How are elements in the nitrogen family (group 15) similar to each other

The first law of thermodynamics states that. How is this also a statement of the principle of conservation of energy? A. A change in internal energy causes work to be done and heat to flow into the system. B.

Matter materials made of only one kind of atom is called: A) matter B) element C) compound

Imagine the reaction A + B ⇌ C + D is at equilibrium, where the forward and reverse reactions are at equal rates. What would happen to the rate of the forward reaction if the [A] were suddenly to increase?

What is the best example of electromagnetic energy in everyday life

Which of these is NOT a physical change? A. Candle burning. B. Evaporation of water. C. Magnetisation of iron.

Draw the correct structural formula for the following compounds: (be sure to include the hydrogen atoms where required) a) 2-pentene b) 2,3-diethyl-3,5-dimethylhexane c) 4-ethyl-2,6-dimethyl-2-heptene

4. Electronegativity is a measure ofA) the energy needed to remove an electron from an atom. B) the energy released when an electron is added to an atom. C) the magnitude of the negative charge on an electron.

Mitochondria are responsible for dna maintenance storage making protein providing energy for the cell

A hot air balloon contains 40.0 liters of helium gas at 203 kilopascals. What will be the volume of the helium when the balloon rises to an altitude where the pressure is only 35.0 kilopascals?

Which characteristic of a substance is considered a chemical property