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
marishachu [46]
2 years ago
6

What is Chemistry? What topics are covered in chemistry?

Chemistry
2 answers:
WITCHER [35]2 years ago
5 0

Answer:

chemistry is the scientific study of the properties and behavior of matter.

salantis [7]2 years ago
4 0

Answer:

Taylor lyrics......?????

You might be interested in
The total concentration of ions in a 0.75 M solution of HCl is
EastWind [94]
<h3>Answer:</h3>

The total concentration of ions in a 0.75 M solution of HCl is 1.5 M

That is; 0.75 M H⁺ and 0.75 M Cl⁻

<h3>Explanation:</h3>
  • Concentration or molarity is the number of moles of a compound or an ion contained in one liter of solution. It is measured in moles per liter (M).
  • The concentration of ions making a compound is determined by the ratio of moles of the compound and the constituents ions.
  • For instance, HCl dissociates to give H⁺ and Cl⁻

       HCl(aq) → H⁺(aq) + Cl⁻(aq)

  • Therefore, since the mole ratio between HCl and the constituent ions H⁺ and Cl⁻ is 1:1, then 0.75 M of HCl dissociates to give 0.75 M H⁺ and 0.75 m Cl⁻
  • Hence the total concentration of ions in a 0.75 M solution of HCl is 1.5 M (0.75 M H⁺ and 0.75 M Cl⁻)
4 0
3 years ago
2. Metals react with water and release hydrogen gas. Explain why non-metals do not release hydrogen gas when reacted with water.
Phantasy [73]

Answer:

Its because non-metals are unable to break the bond between the H and O ion and cannot reduce hydrogen by donating electrons

8 0
2 years ago
A student sets up an experiment according to the table below. What question was the student most likely investigating?
user100 [1]

Answer:

88

Explanation:

7 0
3 years ago
The ionization energy is the energy needed to remove an electron from an atom. In the bohr model of the hydrogen atom, this mean
Salsk061 [2.6K]

The ionization energy for a hydrogen atom in the n = 2 state is 328 kJ·mol⁻¹.

The <em>first ionization energy</em> of hydrogen is 1312.0 kJ·mol⁻¹.

Thus, H atoms in the <em>n</em> = 1 state have an energy of -1312.0 kJ·mol⁻¹ and an energy of 0 when <em>n</em> = ∞.

According to Bohr, Eₙ = k/<em>n</em>².

If <em>n</em> = 1, E₁= k/1² = k = -1312.0 kJ·mol⁻¹.

If <em>n</em> = 2, E₂ = k/2² = k/4 = (-1312.0 kJ·mol⁻¹)/4 = -328 kJ·mol⁻¹

∴ The ionization energy from <em>n</em> = 2 is 328 kJ·mol⁻¹ .

6 0
3 years ago
When your grandparents were growing up, they ate
Kryger [21]
It is fresher because of new transportation techniques and refrigerated trailers.
5 0
3 years ago
Other questions:
  • 1. The Russian chemist who designed the first accepted version of periodic table in the 1800s was ______________.
    7·1 answer
  • How many significant figures are in each measurement? 0.00052 m
    12·2 answers
  • Which of the following is a correct formula unit? PbCl AlP Li3Al ClO
    14·2 answers
  • What is the ph category of each of the following i need help plz
    10·1 answer
  • Identify the type of interactions involved in each of the following processes taking place during the dissolution of sodium chlo
    11·1 answer
  • How to separate unreacted iron
    11·1 answer
  • What is the element Ar as in the periodic table
    7·2 answers
  • How many ATOMS of boron are present in 3.61 grams of boron trifluoride ?
    11·1 answer
  • Calculate the number of atoms in 3.21 mole of Mg?
    11·1 answer
  • Write the equilibrium constant expression for this reaction:<br> NH(aq)—&gt;NH3(aq)+H+ (aq)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!