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
jekas [21]
3 years ago
8

6) What is located in the nucleus?

Chemistry
1 answer:
jek_recluse [69]3 years ago
7 0

Answer:

Protons and Neutrons are found in the nucleus

You might be interested in
a solution of KCl in water has a concentration of 0.243 M. The solution has a volume of 0.580 L. How many grams of KCl are prese
Novosadov [1.4K]

Answer:

10.5 g

Explanation:

Step 1: Given data

  • Molar concentration of the solution (C): 0.243 M
  • Volume of solution (V): 0.580 L

Step 2: Calculate the moles of solute (n)

Molarity is equal to the moles of solute divided by the liters of solution.

M = n/V

n = M × V

n = 0.243 mol/L × 0.580 L = 0.141 mol

Step 3: Calculate the mass corresponding to 0.141 moles of KCl

The molar mass of KCl is 74.55 g/mol.

0.141 mol × 74.55 g/mol = 10.5 g

8 0
3 years ago
A reaction is non-spontaneous at any temperature when
slavikrds [6]

Answer:

A reaction is non-spontaneous at any temperature when the Gibbs free energy > 0.

Explanation:

There is a state function, that determines if a reaction is sponaneous or non spontaneous:

ΔG = Gibbs free energy

A reaction is non spontaneous when it does require energy to produce that reaction. It will be spontaneous, when the reaction does not require energy to be occured.

The formula is: ΔG = ΔH - T.ΔS

ΔH → Enthalpy → Energy gained or realeased as heat.

ΔH < 0 → <em>Exothermic reaction. Spontaneity is favored </em>

T  → Temperature

ΔS → Entropy →  Degree of disorder of a system.

When the system has a considered disorder ΔS > 0, disorder increases.

When the system is more ordered, ΔS < 0, disorder decreases.

The reaction will be non spontaneous if, the enthalpy is positive (endothermic reaction) and the ΔS < 0 (disorder decreases). It will not occur if we do not give energy.

ΔG < 0 → Spontaneous reaction

ΔG > 0 → Non spontaneous reaction

ΔG = 0 → System in equilibrium

8 0
3 years ago
Please help on the questions that is left blank!! Due soon and will mark brainliest
34kurt

Answer: The strength of an acid or alkali depends on the degree of dissociation of the acid or alkali in water. The degree of dissociation measures the percentage of acid molecules that ionise when dissolved in water. He could use universal indicators or litmus paper for this.

i hope this helps you!

3 0
3 years ago
When testing to see how water affects plant growth, John make sure one set of his plants does not get water. This set of plants
Mashcka [7]

Answer:

control.

Explanation:

during an experiment you are required to maintain a separate group of subjects to collect data on so you will be able to make comparisons from your observations. assuming the watered plants grew, what does that mean? they grew at a quicker rate? slower rate? the same rate? compared to what? you need this control group in order to prove your observations either one way or the other such as "compared to unwatered plants, the watered plants grew at *blank* rate."

4 0
3 years ago
Which of the following would not be a clear indication of a chemical change
Alekssandra [29.7K]

I believe the answer is "After adding two substances together a new order is detected" because nearly all of the other answers suggest a chemical change has taken place. The reason I say "almost" is because answer two and four results in bubbles forming so the answer cannot be both. The only one to not clearly show a chemical change has occurred is the last answer.

3 0
3 years ago
Other questions:
  • 5. How many significant figures are in the measurement +0.500 mg?
    7·1 answer
  • Is the mass of the reactants always equal to the mass of the products in a chemical reaction?
    8·1 answer
  • What is the name of an atom with 3 protons and 4 neutrons?
    5·2 answers
  • Just need a letter so no that does not help
    13·1 answer
  • The radioactive isotope of lead, Pb-209, decays at a rate proportional to the amount present at time t and has a half-life of 3.
    14·1 answer
  • Explain what the atomic number and atomic mass of an element represent. use an example of an element. describe how the atomic nu
    9·1 answer
  • If the solubility of sugar at 25ºC is 211 g/100 g H2O, what mass of sugar can be dissolved in 300 g of H2O?
    8·2 answers
  • A science teacher asked students to calculate the density of a toy block. The mass of the block was 110 grams and the volume of
    14·1 answer
  • Of ozone, molecular oxygen, and oxygen radicals, which is the most stable form of oxygen? How do you know?
    15·1 answer
  • Select the sentence from the section "Cute Beavers Also Cause Trouble" that is MOST important to include in the section's summar
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!