What is the first basic metal on the periodic table

Farming is one example of a human activity that has changed the environment. Which is the NOT a reason farming has hurt the environment?

What must differ between the atom of two different elements

What is the net ionic equation for AgNO3 (aq) + K2SO3 (aq) ?

How many formula units in 10.8 g of MgCl2

A beaker contains 500 ml of 2.40M KNO3 the beaker is left uncovered so that all of the water evaporates. What mass of KNO3 crystals will remain in the beaker when the beaker is dry.

Observe: Change the Surface area from Minimum to Maximum. You can imagine that a solid reactant has been dissolved in a liquid. How does this change how many Reactant B molecules are exposed to Reactant A?

When placed in a 200-mL square box, a substance has a spherical shape and has a volume of 75 mL When placed in a 200-mL circular tube, the same amount of that same substance has a spherical shape and a 75-mL volume.

What is the example to the word camouflage

Given the reaction 2NaOH + H2SO4 = Na2SO4 + 2H2O, what is the total number of grams of NaOH needed to react completely with 196 grams of H2SO4

The mass flow rate of gasoline leaving a refinery is 1610 kg/min. The specific gravity of a gasoline is 0.700. A retail gasoline pump is able to fill a 20.0 gallon automobile tank in 1.80 minutes.