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Dima020 [189]
3 years ago
9

Every complex cell has DNA in its _______.vacuole

Chemistry
1 answer:
kolbaska11 [484]3 years ago
4 0
The answer would be D
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A balloon with a volume of 0.5L at 293K is cooled to 20K. What is the balloon's new<br> volume?
alina1380 [7]

Answer:

0.03 L

Explanation:

Step 1: Given data

  • Initial volume of the balloon (V₁): 0.5 L
  • Initial temperature of the balloon (T₁): 293 K
  • Final volume of the balloon (V₂): ?
  • Final temperature of the balloon (T₂): 20 K

Step 2: Calculate the final volume of the balloon

The balloon is filled with air. If we assume it behaves as an ideal gas, we can calculate the final volume of the balloon using Charles' law.

V₁/T₁ = V₂/T₂

V₂ = V₁ × T₂/T₁

V₂ = 0.5 L × 20 K/293 K = 0.03 L

3 0
3 years ago
How many electrons does an ion of magnesium have if it’s represented by the symbol shown below? 25Mg2+
Galina-37 [17]

Answer:

10 electrons.

Explanation:

Hello!

In this case, since a normal atom of magnesium has 12 protons and electrons when is not in the form of a cation, since it is a metal that tends to lose electrons when ionized, and therefore it becomes positively charged, we infer  that in form of:

Mg^{2+}

It only has 10 electrons.

Best regards!

7 0
3 years ago
Describe the Self-Consistent Field (SCF) method for obtaining the orbitals of a Boron atom​
weqwewe [10]
<h3>What is Self-Consistent Field (SCF)?</h3>

This is used in quantum chemical models to accurately calculate the amount

of orbitals present in an element.

The Self-Consistent Field (SCF) method for obtaining the orbitals of a

Boron atom​ involves the following processes which include:

  • Selecting an approximate Hamiltonian
  • Solving the Schrödinger equation to obtain a more accurate set of orbitals.
  • Solving the Schrödinger equation again until the results converge.

The converging of the result typically signified the end of the solving of the

equations  and the derivation of the orbitals of the Boron atom.

Read more about Orbitals here brainly.com/question/26000020

6 0
3 years ago
Someone please answer i’ll give you brainly.
lina2011 [118]
Let's hope she didn't watch it without me or i will never be speaking to her again :))
4 0
3 years ago
Explain how redox reactions are involved in energy exchanges
ankoles [38]

Redox reactions involve one substance losing electrons (oxidized) and another substance gaining electrons (reduced) in the same reaction. As electrons are transferred between substances, the electrons lose potential energy and energy is released.

3 0
2 years ago
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