In a dilution, solvent is added to a given amount of a concentrated solution. What happened to the total concentration?

Which compound is formed from a network of bonded ions? A) sugar, C12H22O11 B) water, H2O C) methane, CH4 D) salt, NaCl

Hydrogen gas can be prepared by reaction of zinc metal with aqueous HCl: Zn (s) + 2HCl (aq) → ZnCl₂ (aq) + H2 (g) How many liters of h₂ would be formed at 742 mm Hg and 15 °C if 25.5 g of zinc was allowed to react?

If the apparent magnitude of a star increases, the star get brighter, true or false?

What is the total number of moles of aluminum oxide that can be formed when 54 grams of aluminum reacts completely with oxygen?

What statement is true about the eight elements on the periodic table termed metalloids? Group of answer choices They are the only naturally occurring elements. They are the only man-made elements. They have properties of both metals and nonmetals.

Which term best describes the substances that cause oil and water molecules in salad Dressing to interact and mix? surfactants miscible liquids immiscible liquids compressed molecules

Two molecules have the same molecular geometry but different electron domain geometries. Which combination of atoms and lone pairs around the central atom could describe these molecules?

High zinc intakes can inhibit the absorption of copper true or false

Which is the theoretical reason behind the framers favoring of a bicameral congress?

What is the maximum number of covalent bonds an element with atomic number 8 can make with hydrogen?