Why does a chemical equation need to be balanced to support the law of conversation of matter?

What is exchanged between two or more atoms that undergo ionic bonding?

This symbol ⇔ indicates: question 2 options: that heat must be applied. that the reaction is reversible. that a gas is formed by the reaction. an incomplete combustion reaction.

In order to boil, a liquid's vapor pressure must be greater than the pressure of the atmosphere. TRUE FALSE

Calculate molality, molarity and mole fraction of KI if the density of 20% (mass) aqueous KI is 1.202 g/mL

If you were asked to convert 3.5 moles of aluminum to grams, which of the following should you use for the conversion?. Select one:. a. fraction: 6.022 times 10 superscript 23 atoms Al over one mol Al atoms. b. fraction: 26.981 g Al over one mol Al.

Which is a sign of a chemical change? Question 6 options: Paint on a freshly painted wall dries and is no longer sticky. Ice cream melts when left at room temperature. Vinegar is mixed with baking soda resulting in carbon dioxide bubbles.

What is the correct term for water Atom element product reactant

Do carbon atoms gain, lose, or share electrons?

In aqueous solution the ag ion forms a complex with two ammonia molecules. Write the formation constant expression for the equilibrium between the hydrated metal ion and the aqueous complex.

Which samples are substance? (A) HCI (aq) (B) NaCI (aq) (C) HCI (g) (D) NaCI (s)