Quiz

Active

Which phrase describes a volcano that is not expected to erupt again?

quiet volcano

extinct volcano

Odormant volcano

explosive volcano

which two elements are most likely to form an ionic bond? krypton and lithium, magnesium and silicon, calcium and potassium, iodine and chlorine

Suppose an aqueous mixture is prepared containing magnesium sulfate (mgso4), copper (ii) sulfate (cuso4), metallic magnesium, and metallic copper. what reaction, if any, will occur?

A sample of metal has a mass of 12.9 grams and a volume of 29.8 ml. what is its density?

What is the name of CH3?

Which of the following chemical reactions will produce a precipitate?

Why are valence electrons important?

A woman carriers her 100-newton child for a distance of 50 meters to the child's bedroom. How much work does the woman do?

Which statement best describes the compressibility of a gas? A Increasing the temperature of a gas decreases the pressure. B Increasing the temperature of a gas increases the pressure. C Increasing the pressure on a gas decreases the volume.

How many grams are in 3.0 moles of KCI (potassium chloride) ?

3 During a flame test, a lithium salt produces a characteristic red flame. This red color is produced when electrons in excited lithium atoms (1) are lost by the atoms (2) are gained by the atoms (3) return to lower energy states within the atoms