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
maksim [4K]
2 years ago
7

NEED HELP PLEASE HURRY

Chemistry
1 answer:
baherus [9]2 years ago
7 0

Answer:

I believe it would be the last 2

Explanation:

the 4th one is magnesium and something else but that's with decomposition and so is the last one. the first three has water and oxygen and stuff that doesn't rly do decomposition

You might be interested in
Calculate the volume of a 0.323-mol sample of a gas at 265 K and<br> 0.900 atm.
Katarina [22]

Answer:

V = 7.8 L

Explanation:

Message

5 0
3 years ago
Which of these is an acid A(Vinegar
ololo11 [35]
Vinegar is the only thing listed
8 0
3 years ago
If you wanted to harvest cranberries which separation method would you use
aleksklad [387]
Hello.

If you wanted to harvest cranberries you would need to use flotation.

Have a nice day.
4 0
4 years ago
What is the symbol for the element whose atoms have 40 electrons each?
inysia [295]
<span>The symbol for the element whose atoms have 40 electrons each is Zr. This is the element zirconium. In the atoms of a pure element, the number of positively charged protons is normally equal to the number of negatively charged electrons. Hence, the number of electrons in the atom can be inferred from the atomic number, which corresponds to the number of protons in an atom. The atomic number of zirconium is 40.</span>
8 0
3 years ago
A) 30.22 g NaCl x 1 mol NaC l =      58.4430 Molar mass (g) NaCl=0.5171 mol NaCl
jekas [21]
The third question requires you to solve for the weight of sodium (Na) and weight of Chloride (Cl) from the calculated moles of each element Na, and Cl.

So, you need to multiply the calculated moles of Na with its molar mass (23 g/ mol) to get the answer for Na. And multiply the calculated moles of Cl with its molar mass (35.45 g/mol) to get the answer for Cl. 
6 0
3 years ago
Other questions:
  • Calcium lon<br> Protons:<br> Neutrons: 20<br> Electrons:<br> Mass:<br> *it’s an ion*
    10·1 answer
  • Valid experiment for does water and oil mix
    5·1 answer
  • Identify each type of titration curve. note that the analyte is stated first, followed by the titrant.
    14·1 answer
  • Which electrons are the valence electrons of the atom?<br> Helpppppppp
    7·1 answer
  • Chloroform (CHCl3), an important solvent, is produced by a reaction between methane and chlorine. CH4(g) + 3 Cl2(g) CHCl3(g) + 3
    9·1 answer
  • Some chemical factories make hydrogen gas (H2) using a process called steam methane reforming. In this process, methane (CH4) co
    15·1 answer
  • 65 g of NaOH is dissolved to make 500 mL of solution. Find moles of NaPH and Molarity of solution.
    10·1 answer
  • Trying to explain why a cactus needs little water to survive is an example of
    6·1 answer
  • What is the rule for determining the mass of an atom
    15·1 answer
  • Potassium + water = potassium hydroxide + hydrogen​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!