Why do A and T (and G and C) pair in a DNA double helix?

Covalent bonds form between them.

Van der Waals forces are thus maximized.

Ionic interactions are thus maximized.

Hydrogen bonds form between them.

How many moles are in NaOH?

Iridium-192 is one radioisotope used in brachytherapy in which a radioactive source is placed inside a patient's body to treat cancer.

The pressure of 6.0 L of a gas is 200 kPA. What will be the volume of the pressure is doubled, keeping the temperature constant?

A solid object has a mass of 30 grams and a volume of 10 cm3. Which is the density of the object?

In which technique atomic absorption or atomic emission is flame temperature stability more critical?

Which laws can be combined to form the ideal gas law? Boyle's law and Charles's law Gay-Lussac's law and Avogadro's law Charles's law, Avogadro's law, and Boyle's law Dalton's law, Gay-Lussac's law, and Avogadro's law

What determines the horizontal arrangement of the periodic table?

A 55.3 g sample of lead heated and then quenched in a 175g sample of water. During the quenching reaction the temperature of the water increases from room temperature, 25.0 °C, to 42.6 °C.

What conclusion can you draw from this experiment about the components of the black ink

How does the size of ions affect the conductivity of a solution?