1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ioda
4 years ago
12

PLS HELP I NEED TO PASS THIS... In 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?
Question 7 options:


A.odor


B.gas is produced


C.temperature decreased


D.magnesium appeared
Chemistry
1 answer:
Bond [772]4 years ago
8 0

B gas is produced is the answer.


You might be interested in
What do you think about our current forms of recycling? Why?
tankabanditka [31]
It is absurd. Environmentalists prefer that you don’t recycle at all because most if not all of our recyclables are being recycled incorrectly.
8 0
3 years ago
Please help as soon as possible!
Keith_Richards [23]

Answer:

4 because CoCO2 is in a degree And it’s all four different elements

7 0
3 years ago
Read 2 more answers
How many orbitals are in the n=3 level
solniwko [45]

The third shell has 3 subshells: the subshell, which has 1 orbital with 2 electrons, the subshell, which has 3 orbitals with 6 electrons, and the subshell, which has 5 orbitals with 10 electrons, for a total of 9 orbitals and 18 electrons.

7 0
3 years ago
Read 2 more answers
A student hypothesized that the amount of sunlight a sunflower plant receives determines the number of sunflower seeds the plant
BabaBlast [244]

Answer:

Dependent variable

Explanation:

In every experiment, there must be a dependent variable and an independent variable.

The independent variable is that variable that you have to manipulate in order to receive a response. E.g, in the experiment described in the question, the amount of sunlight a sunflower plant receives is the independent variable.

The dependent variable is the number of seeds produced. It is the response obtained by carefully manipulating the amount of sunlight

5 0
3 years ago
What is 334 kiloLiters to Liters?
motikmotik

Answer: 334000 Liters

- $Supreme$

7 0
1 year ago
Other questions:
  • The _______ elements tend to lose electrons and form positive ions, while the _______ elements tend to gain electrons and form n
    14·2 answers
  • Consider the model of a sodium atom .Which feature does the model show accurately ?
    14·1 answer
  • a little kitten jumps from a tree and hits the ground 2.6 seconds later.with this information calculate the cat's velocity right
    9·1 answer
  • A piece of tin has a mass of 16.52 g and a volume of 2.26 cm3 what is the density of tin?
    8·1 answer
  • Help school so annoying
    6·1 answer
  • 5. A grouping of organisms based on shared characteristics is called
    9·2 answers
  • Explain The element lithium has two common isotopes: Li–6 and Li–7 If the average atomic mass of lithium is 6.94004 u, determine
    9·1 answer
  • 2.00 gallons is equal to how many liters?
    14·1 answer
  • Hazardous materials are grouped into classes identifying their.
    14·1 answer
  • How many grams are in 4.63 ×1024 molecules of CCl4​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!