CHEMISTRY HIGH SCHOOL

What isotope has 33 protons and 48 neutrons?

Answers

Answer 1
Answer:

Answer:

Arsenic- As

Explanation:

that's the answer hope it helps

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Which solution reacts with LiOH(aq) to produce a salt and water?

Answers

2 LiOH + H₂SO₄= 2 H₂O + Li₂SO₄

is sulfuric acid ( H₂SO₄) producing H₂O and Li₂SO₄ ( Lithium sulfate)

hope this helps!

Balance chemical equations
_Fe + _H₂SO₄ -> Fe₂ (SO₄)₃ _ H₂

Answers

2 Fe + 3 H₂SO₄ = 1 Fe₂(SO₄)₃ + 3 H₂

hope this helps!

Calculate the number of moles56.75 g of Al(NO3)3
8.35 g of Al2(SO4)3
3.8 g of FeSO4

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number of moles = mass /molar mass

Relationship between genes chromosomes an dna .

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Answer:

Genes are segments of DNA that contain the code for a paticular  protein that works in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.

Explanation:

Answer:

The answer should be A

Explanation:

Which best describes the trends in electronegativity on the periodic table?

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The correct answer is:

Electronegativity increases up and to the right

Explanation:

Electronegativity, logo χ, is a chemical property that explains the trend of an atom to attract a shared pair of electrons towards itself.As you move from left to right across the periodic table, electronegativity increases, and as you move down the table electronegativity decreases.
Electronegativity is higher on the right side of the periodic table, such as the noble gasses. There electronegativity is around 3.0 and 4.0 while the left side has electronegativity ranging from .7 to 1.0

Check the statements that are a part of the Early Atomic Theory. a.Scientists believe that the atom is made up of elements. b.Atoms combine in whole number ratios to form compounds. c.Atoms cannot be created or destroyed during a chemical reaction.

Answers

Answer: C

Explanation: Because it cannot, no one can create or destroy an atom, it just moves. It either bonds to another atom or it roams freely.
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