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
wel
2 years ago
12

Can someone answer this chemistry question​

Chemistry
1 answer:
Natalka [10]2 years ago
5 0

Explanation:

this is because of the electrolysis and the hydrogen and oxygen the experiments and all that the conditions are all right you know that song

You might be interested in
What is a half-life in Chemistry?
makvit [3.9K]

Answer:

half-life, in radioactivity, the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay (change spontaneously into other nuclear species by emitting particles and energy), or, equivalently, the time interval required for the number of disintegrations per second of a radioactive ...

Explanation:

braniest

8 0
3 years ago
A solution is made by adding 29.1 mL of concentrated perchloric acid ( 70.5 wt% , density 1.67 g/mL ) to some water in a volumet
Lera25 [3.4K]

Answer:

The concentration of the solution is 1.364 molar.

Explanation:

Volume of perchloric acid = 29.1 mL

Mass of the solution = m

Density of the solution = 1.67 g/mL

m=1.67 g/mL\times 29.1 mL=48.597 g

Percentage of perchloric acid in 48.597 solution :70.5 %

Mass of perchloric acid in 48.597 solution :

= \frac{70.5}{100}\times 48.597 = 34.261 g

Moles of perchloric acid = \frac{34.261 g}{100.46 g/mol}=0.3410 mol

In 29.1 mL of solution water is added and volume was changed to 250 mL.

So, volume of the final solution = 250 mL = 0.250 L (1 mL = 0.001 L)

Molarity=\frac{Moles}{Volume (L)}

=\frac{0.3410 mol}{0.250 L}=1.364 M

The concentration of the solution is 1.364 molar.

6 0
3 years ago
Put the level of organization in order from smallest to largest a. Organelles, cellsorgans, tissuesorgan systems b. Organs, tiss
Lesechka [4]

Answer: My guess is D i hope this is right

Explanation:

8 0
3 years ago
What is usually needed to help a decomposition reaction occur
ArbitrLikvidat [17]
<u>The addtion of energy</u> <span>is usually needed to help a decomposition reaction occur</span>
3 0
3 years ago
Read 2 more answers
This group of elements contains brittle solids at room temperature. They
Natalija [7]

non-metals

they don't conduct heat

5 0
3 years ago
Other questions:
  • Describe the evidence for Mercury having a molten iron core
    12·1 answer
  • 2. 3. For her chemistry experiment, Marisol needs 2 liters of a 50% alcohol solution. The lab has two containers, one with 40% a
    13·1 answer
  • Which measurements are scalar quantities?
    14·1 answer
  • One liter of oxygen gas at standard temperature and pressure has a mass of 1.43 g. The same volume of hydrogen gas under these c
    10·1 answer
  • What is the resultant pressure if 1.7 mol of ideal gas at 273 K and 2.79 atm in a closed container of constant volume is heated
    7·1 answer
  • What is the charge for H before electron share?
    5·1 answer
  • A student adds hydrobromic acid (HBr) to a solution of sodium bromide at equilibrium. How does this change affect the system?
    14·1 answer
  • The following reaction shows sodium hydroxide reacting with sulfuric acid.
    5·1 answer
  • What are tissues made up of?
    14·2 answers
  • A solution of saline may contain 1.81 mol of sodium chloride (NaCl). How many sodium atoms are present in the solution?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!