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
Schach [20]
3 years ago
6

III. For the following four sections: If you are given the formula, name the

Chemistry
1 answer:
serious [3.7K]3 years ago
5 0

Answer:

15.Potassium oxide

16.Calcium chloride

17.Aluminium sulphide

18.CaS

Explanation:

15.K is the chemical symbol of Potassium and generally the name of the non-metal at the end of a formula has the suffix '-ide' and since O is oxygen, the name becomes Potassium oxide.

16. The same applies here. Ca is Calcium and Cl is Chlorine but since its the non-metal at the end, it ends in -ide. So Calcium chloride.

17.The same applies here too. Al is Aluminium and S is Sulphur so Aluminium sulphide.

18. Calcium's symbol is Ca and that of Sulphur is S and that gives the formula CaS.

You might be interested in
Which best describes a chemical reaction that follows the law of conservation of matter?
Leno4ka [110]
I’m thinking C for this hope it’s right
5 0
2 years ago
MARK AS BRAINLIEST IF YOU ANSWER THIS CORRECTLY
Sunny_sXe [5.5K]
C. If the banks of the river are eroding, then the river will be wider.
5 0
3 years ago
2Na(s) + Cl2(g) ------ 2NaCl(s)
Dovator [93]

Answer:

1. 7.256g of NaCl

2. 47.33g of Cl2

Explanation:

2 moles of Na reacts to produce 2 moles of NaCl

8 moles of Na will still produce 8 moles of NaCl

Mass of NaCl = molar mass of Nacl/moles of Nacl

=58.5/8

=7.256g of NaCl

From the equation, 2 moles of Na reacts with 1 mole of Cl2

3/2 moles of Cl2 will react with 3 moles of Na

Mass of Cl2 = 71/1.5

=47.33g of Cl2

6 0
3 years ago
The work done to expand a gas is 121 J. During the gas expansion, 402 J of heat is absorbed by the gas sample. Calculate the cha
butalik [34]

Answer: 3.50

Explanation:

because the heat of engine cause a gas

7 0
3 years ago
What is the molarity of a NaOH solution if 28.2 mL of a 0.355 M H2SO4 solution is required to neutralize a 25.0-mL sample of the
Verdich [7]

Answer:

[NaOH} = 0.4 M

Explanation:

In a reaction of neutralization, we determine the equivalence point of the titration. In this case, we have a strong base and a strong acid.

(H₂SO₄, is considered strong, but the first deprotonation is weak)

2NaOH  +  H₂SO₄  →  Na₂SO₄  + 2H₂O

As we have 2 protons in the acid, we need 2 OH⁻ from the base to form 2 molecules of water.

In the equivalence point we know mmoles of base = mmoles of acid

Let's finish the excersise with the formula

25 mL . M NaOH = 28.2 mL  .  0.355M

M NaOH = (28.2 mL  .  0.355M) / 25 mL → 0.400

8 0
3 years ago
Other questions:
  • What is the density of oxygen gas (O2) at 2.3 atmospheres and 305 Kelvin? Show all of the work used to solve this problem.
    6·1 answer
  • How can you tell if a chemical reaction has occurred?
    8·1 answer
  • Why do the vinegar and oil in a salad dressing separate into layers if left standing for too long?
    10·1 answer
  • The volume of solution in a test tube is measured to be 0.0067 liter. Which digits in A certain satellite orbiting Earth has a s
    12·1 answer
  • 2. List three types of chemical changes.<br><br><br><br> Help me
    7·1 answer
  • How many atoms are in 0.075 mol of titanium?
    6·1 answer
  • a 1kg rock is at a height of 100 meters. What is the rocks gravitational potential energy at 100 meters high
    6·2 answers
  • Some COCl2 is placed in a sealed flask and heated to 756 K. When equilibrium is reached, the flask is found to contain COCl2 (7.
    11·1 answer
  • PLS SOMEONE HELP ME ANSWER THESE QUESTIONS ARE THEY CONDUCTION OR CONVECTION OR RADIATION
    11·1 answer
  • Are bonds broken or formed, throughout each phase change present on a heating<br> curve?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!