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
Alexandra [31]
4 years ago
11

Last one ! Can someone please help me PASS this one !!

Chemistry
1 answer:
Alecsey [184]4 years ago
4 0

i would put a 250g block on the opposite side of the other 250g block and i would put a 100g block on the opposite side of the other 100g block


You might be interested in
When electrolyzing copper (ll) chloride, what reaction takes place at the anode? What reaction takes place at the cathode?
klemol [59]

Answer:

Copper ions are reduced into copper atoms.

Cu²⁺₍aq₎ + 2e⁻ →  Cu₍s₎

Explanation:

During electrolysis,  the positive H⁺ and Cu⁺ ions move to the negative cathode and negative OH⁻ and Cl⁻ ions move to the positive anode.

At cathode, copper ions are preferentially discharged due to the low electromotive force required to discharge them compared to the hydrogen ion. The copper ions gain the two electrons lost by the chloride ions when the are discharged. (2 Cl⁻₍aq₎ → Cl₂₍g₎ + 2e⁻)

Thus the half equation is as follows:

Cu²⁺₍aq₎ + 2e⁻ →  Cu₍s₎

5 0
3 years ago
What is gamma rays burst​
storchak [24]

Answer:

In gamma-ray astronomy, gamma-ray bursts are immensely energetic explosions that have been observed in distant galaxies. They are the brightest and most energetic electromagnetic events known to occur in the universe. Bursts can last from ten milliseconds to several hours. b

I love you

6 0
3 years ago
Read 2 more answers
PLEASEEEEEEEEEEEE HELPPPPPPPP I BEGGGGG FOR HELPPPPP
Elza [17]

Answer: There are 21.08\times 10^{23} molecules in 63.00 g of H_2O

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 6.023\times 10^{23} of particles.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}=\frac{63.00g}{18g/mol}=3.5moles

1 mole of H_2O contains =  6.023\times 10^{23} molecules

Thus 3.5 moles of H_2O contains =  \frac{6.023\times 10^{23}}{1}\times 3.5=21.08\times 10^{23} molecules.

There are 21.08\times 10^{23} molecules in 63.00 g of H_2O

3 0
3 years ago
Nemistry I sem
GaryK [48]

Answer:

A

Explanation:

BF3 has a trigonal planar shape.

XeO3 has a trigonal pyramidal shape.

3 0
3 years ago
What is napping in the picture ​
Black_prince [1.1K]
The bird ate the white mouse leaving only 2 white dominant mouses which leaves you to them dying and leaving the darker mouses to reproduce
3 0
4 years ago
Other questions:
  • Solution A has a concentration of 3 M. If solution B is 5 times more concentrated than A what is it’s concentration?
    15·1 answer
  • Which symbol represents a particle with a total of 10 electrons
    10·1 answer
  • at stp which of following would have the same number of molecules a 1 l of c2h4 gas? a. 0.5 of H2 b. 1L of Ne c.2L of H2O d.3L o
    11·1 answer
  • Is it true that soaps are salts of sulfonic acids though some have been made from alkyl sulphonates​
    11·1 answer
  • Which of the following influence the pressure of gases? (select ALL that apply)
    5·1 answer
  • Fe(CN)63- + Re → Fe(CN)64- + ReO4--. What is reduced?
    6·1 answer
  • Is the following true or false every element in the periodic table follows the aufbau principle
    7·1 answer
  • CO2(g) + H2O(I) - -> C6H12O6(s) + O2(g)
    15·1 answer
  • This is my cookie >:( you cannot have it
    10·1 answer
  • 19. What is Planck's law?<br> F = MA<br><br> F = hm<br><br> O E= hf<br><br> E = mc (squared)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!