Is making salt water to gurgle for a sore throat a physical or chemical change

What do scientists do when they make a mistake?

What is the molecular formula for chloroform? none of these choices CH3C CHCI3 CH2C12 CCI4

What is the molality of an aqueous solution that contains 29.5 g of glucose (C6H12O6) dissolved in 950 g of water (H2O) ?

Metallic magnesium reacts with steam to produce magnesium hydroxide and hydrogen gas. a. If 16.2 g Mg are heated with 12.0 g H2O, what is the limiting reactant? b. How many moles of the excess reactant are left? c.

Which scientist discovered the neutron

Which two of Earth's spheres interact when mountain glaciers melt due to hot lava released by a volcano? Cryosphere and geosphere Cryosphere and hydrosphere Geosphere and biosphere Hydrosphere and biosphere

The reaction 2CH4 (g) ⇌C2H2 (g) + 3H2 (g) has an equilibrium constant of K = 0.154. If 6.70 mol of CH4, 4.05 mol of C2H2, and 10.05 mol of H2 are added to a reaction vessel with a volume of 5.20 L, what net reaction will occur?

What is harder to pull apart a sodium ion from a chloride ion or a potassium ion from a chloride ion?

Under what conditions is the ideal-gas assumption suitable for real gases?

How is the energy released by an earthquake related to its moment magnitude?