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
mafiozo [28]
3 years ago
6

A number is three times the difference between twenty and the number. What is the number?

Chemistry
2 answers:
Svetllana [295]3 years ago
8 0

Answer:

the number is 7

Explanation:

"Three times" means multiply by 3

"Difference" means subtract

"Sum" means add

3(x - 7) = 23 - (3x + 2)

3x - 21 = 23 - 3x - 2

3x - 21 = 21 - 3x

6x = 42

x = 7

Andre45 [30]3 years ago
4 0
15, as 3 times 5 is 15 and 20-5 is 15
You might be interested in
Which quantity is constant when working with boyles, charles, and gay lussacs law?
oee [108]

boyles law states that the volumes of a gas will decrease as pressure increases if the temperature remains constant.

charles law states that the volume of a gas will increase as temp increases if the pressure remains constant.

gay-lussacs law states that the pressure increases as temp increases if the volume remains constant.

7 0
4 years ago
Read 2 more answers
10) One mole of a diatomic ideal gas is initially at a temperature of 127 °C and
Vladimir79 [104]
Ok hold on one second
6 0
3 years ago
0.450 mol of aluminum hydroxide is allowed to react with 0.550 mol of sulfuric acid; the reaction which ensues is: 2Al(OH)3(s) +
Veseljchak [2.6K]

Answer:

The answer to your question is 1.1 moles of water

Explanation:

                     2Al(OH)₃  +   3H₂SO₄   ⇒   Al₂(SO₄)₃  +   6H₂O

                       0.45 mol      0.55 mol                                ?

Process

1.- Calculate the limiting reactant

Theoretical proportion

       Al(OH)₃ / H₂SO₄ = 2/3 = 0.667

Experimental proportion

       Al(OH)₃ / H₂SO₄ = 0.45 / 0.55 = 0.81

From the proportions, we conclude that the limiting reactant is H₂SO₄

2.- Calculate the moles of H₂O

                        3 moles of H₂SO₄ ----------------  6 moles of water

                        0.55 moles of H₂SO₄ -----------    x

                        x = (0.55 x 6) / 3

                        x = 3.3 / 3

                       x = 1.1 moles of water

5 0
3 years ago
How many molecules are in 3.50 moles of NO2
NeTakaya

Refer pic for answer....

6 0
4 years ago
What is true of all mass and volume of all floating objects
GarryVolchara [31]
If the density is higher than water than the object will sink
5 0
3 years ago
Read 2 more answers
Other questions:
  • One g of U-235 produces approximately how much more energy than 1 g of coal? (a) 3,000 times, (b) 19,000 times, (c) 80,000 times
    9·1 answer
  • Dr. Garcia is performing an experiment to see how cell division in flies is affected by the addition of a certain protein, calle
    15·2 answers
  • Please help due tomorrow
    15·1 answer
  • Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional
    7·1 answer
  • What is the colour change that would be observed if carbon dioxide gas were bubbled into a mixture of calcium oxide, bromothymol
    7·1 answer
  • What is the physical state of fluorine at room temperature?
    12·1 answer
  • Hardness of metals can be decreased by: (a) adding interstitial alloying elements (b) making glassy metals through extremely hig
    15·1 answer
  • Which of the following would be a reasonable synthesis of CH3CH2CH2CH2OH?Group of answer choices
    11·1 answer
  • What mass of HCl is needed to prepare 1.00 mole of Cl₂? 2 KMnO₄ + 16 HCl → 2MnCl₂ + 5 Cl₂ + 8 H₂O + 2 KCl
    7·1 answer
  • does anyone have any advice for breaking up with your gf because you both lost feelings and after months you have been trying to
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!