CHEMISTRY HIGH SCHOOL

The atomic mass of hydrogen is one.true or false

Answers

Answer 1
Answer: its 1.0079 is hydrogen's atomic mass , the answer to your statement is true
Answer 2
Answer:

Answer: True

Explanation:

Atomic mass Approximately, the number of protons plus neutrons in an atom.

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Identify the bond types between the carbon and the two oxygen Atoms in the carbon dioxide molecule.

Answers

The type of bond between the atoms in the carbon dioxide molecule is COVALENT BOND.
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In the phase diagram below, point B describes the critical point.TRUE

FALSE

Answers

The critical point is said to be the end point of a phase diagram. The most known example is the liquid-vapor critical point, the point in a PT curve that signifies that at this point both vapor and liquid coexist. The critical point is characterized by a critical pressure and a critical temperature.

how many moles of oxygen gas (o2) are required to react with 3.75 moles of ammonia (nh3) in the reaction 4nh3 + 5o2 → 4no + 6h2o?

Answers

4 NH₃ + 5 O2 = 4NO + 6 H₂O

4 moles NH₃ ---------> 5 moles O₂
3.75 mols NH₃ -------> ?

Moles O₂ = 3.75 x 5 / 4

Moles O₂ = 18.75 / 4

= 4.6875 moles of O₂

hope this helps!

which of the following types of electromagnetic radiation is most dangerous? 1) Gamma Radiation 2) Ultraviolet Radiation

Answers

Gamma radiation is the most dangerous.

What information do the coefficients of a balanced equation give about the reactants

Answers

The information that the coefficients of a balanced equation give about the reactants are to tell how many moles of reactants are needed and how many moles of product can be produced.

The compound before the arrow are called blank and the compound after the arrow are called blank

Answers

First one is reactants and then second one is products
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