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Ronch [10]
3 years ago
12

The nucleus is held closely together by?

Chemistry
1 answer:
Hoochie [10]3 years ago
7 0

The nucleus of an atom is held together by the strong nuclear force to hold together protons and neutrons. The strong nuclear force is stronger than electricity and gravity. It's even the strongest out of the four fundamental forces.

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Is this equation balanced or unbalanced?<br> C+02=CO2
LenKa [72]
This equation is balanced
4 0
3 years ago
Assuming the relative rate of secondary hydrogen atom abstraction for the chlorination of propane is 3.9 times faster than the r
Ghella [55]

Answer:

% of n-propyl chloride = 43.48 %

Explanation:

There are 2 secondary hydrogens and 6 primary hydrogens

The rate of abstraction of seondary hydrogen = 3.9 X rate of abstraction of primary hydrogen

probability of formation of isopropyl chloride = 3.9 X 1 (relative rate X relative number of secondary hydrogens)

Probability of formation of n-propyl chloride = 1 X 3 (relative rate X relative number of primary hydrogens)

Total probability = 3.9

% of n-propyl chloride = 3 X 100 / 6.9 = 43.48 %

7 0
4 years ago
Which of these solutes raises the boiling point of water the most?
sergey [27]

Answer:

D. ionic sodium phosphate (Na3PO4)

Explanation:

Molecule for molecule, the solute that raises the boiling point of water the most is the one that makes the most particles in the solution. Lithium chloride breaks up into two ions (Li+ and Cl-). So does sodium chloride (Na+ and Cl-). Molecular molecules don't break up at all, so sucrose has only 1 particle per molecule. Sodium phosphate makes 4 total particles (3 Na+ ions and 1 PO4^3-). And magnesium bromide would make 3 particles (1 Mg2+ and 2 Br-). So the most is 4.

6 0
3 years ago
Compared to most substances, water is unusual because it ____ when it goes from the liquid to solid state.
yuradex [85]

Answer:

expands

Explanation:

Most substances become increasingly compressed when frozen solid, but water is a famous exception.

6 0
3 years ago
Read 2 more answers
Hannah made a diagram to show how plants make their own food. What should Hannah write to fill in the blank in the diagram?
Black_prince [1.1K]

Answer:

Answer: Energy from the sun.

Explanation:

<em>If you look at the hints it says that it needs something else for a plant to grow and what does a plant need? </em>

<em />

<em>Air, Water, and energy from the Sun to make food</em>

<em />

<em />

<em>Hope this helps :)</em>

7 0
3 years ago
Read 2 more answers
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