What is the mass of an element with 78 protons and 78 neutrons

3. Where is there not much wind?

How many liters of carbon dioxide can be produced if 37.8 grams of carbon disulfide react with excess oxygen gas at 28.85 degrees Celsius and 1.02 atmospheres? CS2 (l) + 3O2 (g) yields CO2 (g) + 2SO2 (g) 2.78 liters 5.95 liters 11.9 liters 12.

Which of the following usually makes a substance dissolve faster in a solvent?

Griffin was walking to school one day and found a old bone. He took it to a scientist friend of his, and after studying the bone, she determined it was approximately 24,000 years old.

What will happen to water in a cup if the cup is placed inside a sealed bag and left in a warm area?

Explain the energy transformation that must occur for your body to participate in a physical activity, such as playing a sport.

Free branliest to who ever finds out this what does the symbol O represent on the periodic table

According to the periodic table, which of the following is the correct symbol for the element copper? a. cl b. cu c. co d. cr

A bromine atom in an excited state could have an electron configuration of (1) 2-8-18-6 (2) 2-8-18-7 (3) 2-8-17-7 (4) 2-8-17-8

The temperature of the diatomic hydrogen gas sample is increased to 100∘c. the root-mean-square speed vrms for diatomic hydrogen at 100∘c is: