What is the symbol and valence for Sodium?

If the farmer plants the same crop in a field year after year the soil becomes less fertile what causes this decrease in fertility

Are the base pairs always the same?

Balance the redox reaction KMNO4 + NH3 - --> KNO3 + MNO2 + KOH + H2O

What is the molarity of 6 moles (mol) of NaCl dissolved in 2 L of water?

The acidity and basicity of a solution can be described by its ph. a solution is acidic if

What are some differences between insect larvae and worms?

Suppose that 100 grams of water at 50.0°C is placed in contact with 200 grams of iron at 30.0°C. The final temperature is 46.5°C. The specific heats of water and iron respectively, are 4.18 and 0.45 joules per gram times Celsius.

What type of overall charge, if any, does the balloon in Diagram B have? Explain how you determined your answer.

Move deep below the ocean's surface

The Ka of an acid is 1.3 x 10^-7. Based on the Ka and its relationship with Kw, what is the value of Kb? Use KaKb=Kw 1.3 x 10^-21 7.7 x 10^-15 1.3 x 10^-14 7.7 x 10^-8