In the physical science lab, Kim and Dawn added small pieces of magnesium to hydrochloric acid. They observed that bubbles formed, the test tube got hot, and the magnesium disappeared. What is a sign that a chemical reaction has taken place in this experiment?
a. odor
b. gas is produced
c. magnesium appeared
d. temperature decreased
Answers (1)
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “In the physical science lab, Kim and Dawn added small pieces of magnesium to hydrochloric acid. They observed that bubbles formed, the test ...” in 📙 Chemistry if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
A particular power source contains a chemical that releases electrons on one side and a chemical that accepts the electrons on the other side. This flow of electrons from one side to the other provides power.
Answers (1)
Which statement is true about oxygen-17 and oxygen-18?
Answers (1)
What mineral is this? Irregularly shaped, white with nonmetallic luster, the hardness of 2.5, shows cubic cleavage and dissolves easily in water.
Answers (2)
Which substance can be broken down by a chemical change
Answers (2)
A structure containing at least 2 different types of tissue that work together for a common purpose is
Answers (1)
New Questions in Chemistry
Select the correct responses to the questions from the drop-down menus. Which wind blows cool air inland during the day? Which wind blows cool air toward the sea at night? Which winds blow steadily from specific directions and over long distances?
Answers (2)
Consider the balanced equation for the following reaction: 3Ca (ClO3) 2 (aq) + 2Li3PO4 (aq) → Ca3 (PO4) 2 (s) + 6LiClO3 (aq) Determine the theoretical yield of LiClO3 (aq) in grams if the percent yield of LiClO3 (aq) is 81.0% and 9.
Answers (1)
What is the total number of valence electrons in a sulfide ion in the ground state? (1) 8 (3) 16 (2) 2 (4) 18
Answers (1)
Write the name and formula of the compound made of magnesium and fluorine
Answers (1)
How was or wasn't the scientific method followed in this experment
Answers (1)