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
TiliK225 [7]
2 years ago
8

- a) write the formula unit of calcium fluoride.

Chemistry
1 answer:
8090 [49]2 years ago
5 0

Answer:

hope this image is helpful for you

You might be interested in
Which of the following are produced when a base is dissolved in water?
Irina-Kira [14]

Answer is: B. Hydroxide ions.

An Arrhenius base is a substance that dissociates in water to form hydroxide ions (OH⁻).  

For example sodium hydroxide: NaOH(aq) → Na⁺(aq) + OH⁻(aq).

Another example, balanced chemical reaction: Ba(OH)₂(aq) → Ba²⁺(aq) + 2OH⁻(aq).

According to the Arrhenius definition barium hydroxide is base.

Acids and bases when react (neutralisation) produce salt and water.

3 0
2 years ago
Read 2 more answers
Two or more velocities added by......​
alexdok [17]

speed and direction in which an object is moving. both speed and direction of motion. is a vector. two or more velocities add by velocity addition.

5 0
3 years ago
Which solution is the most concentrated? 2.0 mL of 10 M H2SO4, where H2SO4 has a molar mass of 98 g/mol 5.0 mL of 1.0 M PbSO4, w
marishachu [46]

Answer: the option 4) 2.0 mL of 10.5 M H₂O₂, where H₂O₂ has a molar mass of 34 g/mol.

Its concentration is 10.5 M.

Explanation:

1) The unit M means molar. It is the molarity of the solution.

Molartity is the concentration of the solution expressed as number of moles of solute per liters of solution.

The formula of molarity, M, is:

M = number of moles of solute / volume of solution in liters

2) 2.0 mL of 10 M H₂SO₄, where H₂SO₄ has a molar mass of 98 g/mol

⇒ concentration is 10 M

3) 5.0 mL of 1.0 M PbSO₄, where PbSO₄ has a molar mass of 303 g/mol

⇒ concentration = 1.0 M

4) 2.0 mL of 10.5 M H₂O₂, where H₂O₂ has a molar mass of 34 g/mol

⇒ concentration is 10.5 M

5) 100 mL of 10 M NaCl, where NaCl has a molar mass of 58 g/mol

⇒ concentration is 10 M

7 0
3 years ago
Read 2 more answers
Describe how chemistry is a part of your life morning routine?
Maksim231197 [3]
When you wake up early, and go brush your teeth the toothpaste is made of chemical compounds, the water that you use to wash your faceis treated chemically. To make the coffee sugar or sweetener has chemical compounds.
6 0
3 years ago
How do I answer question 4
lidiya [134]

One box is 120g.

mass of 126 boxes = 126*120 = 15120 g

(note: used an additional significant figure when first digit is a 1, so four significant figures)

Using the conversion 1 lb. = 453.6 g/lb

15120g = 15120 g / (453.6 g/lb) = 15120 g * (1/453.6) lb/g = 33.3 lbs. (3 significant figures)

3 0
3 years ago
Other questions:
  • The smallest particle of matter that retains the chemical properties of carbon is a carbon:
    9·1 answer
  • What elements and atoms are involved in a basketball?
    9·1 answer
  • If i initially have 4.0 l of a gas at a pressure of 1.1 atm, what will the volume be if i increase the pressure of 3.4 atm?
    9·1 answer
  • The fourth type of Earth’s movement is galactic movement. What does the term galactic refer to?
    5·1 answer
  • Based on table j, which metal is more active than tin but less active than zinc
    10·2 answers
  • Balance the following reaction in acidic solution:. . Ag(s) + NO3-(aq) -> Ag+(aq) + NO(g)
    15·1 answer
  • Name the subatomic particles in nucleus
    15·1 answer
  • Why do people act like they are your friends, then talk and whisper behind your back to another?
    12·2 answers
  • Glycolysis is the process by which energy is harvested from glucose by living things. Several of the reactions of glycolysis are
    11·1 answer
  • BALANCING CHEMICAL EQUATIONS WORKSHEET
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!