Students in a science class observed that when a strip of magnesium (Mg) metal was placed in a test tube containing hydrochloric acid (HCl), the magnesium began to bubble as hydrogen gas and magnesium chloride are formed. Which of the following choices show both the correctly balanced equation and identify the type of reaction?
A.
Mg + 2HCl →2H2 + MgCl2 (single replacement)
B.
Mg + 2HCl →H2 + MgCl2 (single replacement)
C.
Mg + 2HCl →H2 + MgCl2 (synthesis)
D.
2Mg + HCl →H2 + 2MgCl2 (synthesis)
Answers: 2
Other questions on the subject: Physics
Physics, 22.06.2019 08:00, cxttiemsp021
Choose each of the settings that follow and list them below do it ill mark brainliest first object= position= speed= acceleration= second object= position= speed= acceleration=
Answers: 2
Physics, 22.06.2019 16:50, boopiee2349
Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.
Answers: 1
Physics, 22.06.2019 19:30, jennysantoyo13
Scientist have use computer models to create a series of maps that show how susceptible coastal cities in island countries are to the sea rising at different levels. the map shows that a 1 meter rise would swap cities all along the us eastern seaboard. a 6-meter sea level rise with sub merge a large part of florida. thermal expansion has already raise the oceans 10 to 20 centimeters the most likely cause, directly and indirectly, for such a rise in sea level is
Answers: 2
Physics, 23.06.2019 00:30, fattypickeltoefungus
Which of the following conditions lead you to see an absorption line spectrum from a cloud of gas in interstellar space? the cloud is extremely hot. the cloud is visible primarily because it reflects light from nearby stars. the cloud is cool and lies between you and a hot star. the cloud is cool and very dense, so that you cannot see any objects that lie behind it.
Answers: 3
Do you know the correct answer?
Students in a science class observed that when a strip of magnesium (Mg) metal was placed in a test...
Questions in other subjects:
