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
Stolb23 [73]
3 years ago
13

Omg I’ve been stressing for the past minutes can someone please help me

Chemistry
2 answers:
Alona [7]3 years ago
5 0

Answer:

I think it would be the last answer

Explanation:

SVEN [57.7K]3 years ago
4 0
Last answer i’m pretty sure
You might be interested in
Calculate the volume in liters required to prepare a 5.00 m solution of nacl using 15.4 g of nacl
Vedmedyk [2.9K]
<span>52.7 ml First, determine how many moles of NaCl you have Atomic weight sodium = 22.989769 Atomic weight chlorine = 35.453 Molar mass NaCl = 22.989769 + 35.453 = 58.442769 g/mol Moles NaCl = 15.4 g / 58.442769 g/mol = 0.263505653 mol Now molarity is defined as moles/liter, so let's set up an equation for the number of liters we can make. molarity = moles/liter Substitute the known values 5.00 = 0.263505653/liter And solve for liters 5.00 = 0.263505653/liter 5.00* liter = 0.263505653 liter = 0.263505653/5.00 liter = 0.052701131 So you can make 0.0527 liters of the solution. Or 52.7 ml</span>
8 0
3 years ago
What is a metal that forms two types of oxides and rusts in moisture​
monitta

Answer:

An example of a metal that rusts is Iron

6 0
3 years ago
Read 2 more answers
Calculate the percentage by mass of titanium in liemenite
inysia [295]
FeO·TiO₂

w(Ti)=M(Ti)/M(FeO·TiO₂)

w(Ti)=47.88g/mol/151.73g/mol=0.3156 (31.56%)
8 0
4 years ago
The elements in Groups 1 and 2 get more reactive as you go down the group.
deff fn [24]

Answer:

Sodium and Magnesium

Explanation:

The elements in Groups 1 and 2 get more reactive as you go down the group.

This means that Sodium is more reactive than lithium and Magnesium is more reactive than beryllium.

On the periodic table, as you go down the group, the reactivity of an element increases. Especially with metals in group 1 and 2. Now Lithium is a metal of group 1, followed by Sodium, while Beryllium is a metal in group 2, followed by magnesium. That's how I picked the answers

4 0
3 years ago
Give an example of a solution that can be seperated by simple distilation.​
Juliette [100K]

Answer: Evaporation of salt water

Explanation: During the process of evaporating salt water which involves simple distillation, pure water is separated with salt molecules.

When heated water evaporates from the solution since it is less dense. When condensed it becomes pure water and salt is left out since it is more denser.

8 0
3 years ago
Other questions:
  • What is one advantage the United States has over Canada for maintaining a diversified economy?
    15·2 answers
  • Unlike the earth, the sun _____.
    6·2 answers
  • Silver (Ag) has two stable isotopes: 107Ag, 106.90 amu, and 109Ag, 108.90 amu. If the average atomic mass of silver is 107.87 am
    9·1 answer
  • How many moles of water will be produced when 3 moles of ethane are burned
    13·1 answer
  • Gaseous methane (CH4) will react with gaseous oxygen (O2) to produce gaseous carbon dioxide (CO) and gaseous water (H2O) . Suppo
    6·1 answer
  • A sample of an unknown compound is vaporized at 130°C . The gas produced has a volume of 1280mL at a pressure of 1.00 atm and it
    8·1 answer
  • How much more acidic is 1 to 9
    9·1 answer
  • How many moles are in 3.4 x 10^23 atoms of O2?
    9·1 answer
  • “Enter the conjugate acids of no2- and no3-“
    14·1 answer
  • Whoever gets right I will give you Brainly
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!