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
mamaluj [8]
3 years ago
6

What are the properties of all alkaline materials

Chemistry
1 answer:
Fantom [35]3 years ago
7 0
Ammonia, ammonium hydroxide, calcium hydroxide and oxide. I think...
You might be interested in
What is the difference between an exergonic reaction and an endergonic reaction?
Marina CMI [18]

The difference between an exergonic reaction and an endergonic reaction is that an exergonic reaction involves release of energy, while an endergonic reaction involves absorption of energy.

 

<span>In an </span>exergonic reaction, energy is released to the surroundings. The bonds being formed are stronger than the bonds being broken. In an endergonic reaction, energy is absorbed from the surroundings.

 

The correct answer between all the choices given is the third choice or letter C. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

7 0
2 years ago
Read 2 more answers
The mixing of which pair of reactants will result in a precipitation reaction? A. Ba(NO3)2(aq) + Na2CO3(aq) B. NH4Br(aq) + NH4I(
Semenov [28]

Answer:

A. Ba(NO₃)₂(aq) + Na₂CO₃(aq)

Explanation:

  • The reaction between aqueous Ba(NO₃)₂ and Na₂CO₃ is a precipitation reaction.
  • The complete equation for the reaction is;

Ba(NO₃)₂(aq) + Na₂CO₃(aq) → BaCO₃(s) + NaNO₃(aq)

  • Barium carbonate is the precipitate formed during the reaction.
  • All nitrates are soluble in water and all salts of sodium are soluble in water, therefore, Ba(NO₃)₂, Na₂CO3, and NaNO₃ are soluble in water.
  • Precipitation reaction involves reaction of soluble salts to form a precipitate as one of the product.
8 0
3 years ago
Iodine-131 half life 8.040 how long will it take for a 40 gram sample of iodine-131 to decay to 0.75 grams
otez555 [7]

Answer:

See explanation below

Explanation:

To get this, we need to apply the general expression for half life decay:

N = N₀e(-λt)    (1)

Where:

N and N₀ would be the final and innitial quantities, in this case, masses.

t: time required to decay

λ: factor related to half life

From the above expression we need λ and t. To get λ we use the following expression:

λ = t₁₂/ln2   (2)

And we have the value of half life, so, replacing we have:

λ = 8.04 / ln2 = 11.6

Now, we can replace in (1) and then, solve for t:

0.75 = 40 exp(-11.6t)

0.75 / 40 = exp(-11.6t)

ln(0.01875) = -11.6t

-3.9766 = -11.6t

t = -3.9766 / -11.6

<h2>t = 0.34 days</h2><h2></h2>
3 0
3 years ago
Are carbon atoms alive and why? (plz)
Ket [755]

Answer:

yyes they are lovely . . . . .

4 0
3 years ago
Read 2 more answers
What is the mass in grams of 4.63 mol of C8H18?
AlekseyPX

Answer: 114.22852 grams

HOPE THIS HELPS

7 0
3 years ago
Other questions:
  • The value of h for the reaction below is -73 kj how many kj of heat are released
    5·1 answer
  • What is the density of sulfur dioxide (so2) at 1.2 atmospheres and 271 kelvin? show all of the work used to solve this problem?
    13·1 answer
  • At what temperature and pressure can all three phases of water exist simultaneously?
    5·2 answers
  • You have a 15.0 gram sample of gold at 20.0°C. How much heat does it take to raise the temperature to 100.0°C?
    13·1 answer
  • A base?
    5·2 answers
  • What is the dominant element attached to the carbon backbone
    12·1 answer
  • λmax for the π → π* transition in ethylene is 170 nm. Is the HOMO-LUMO energy difference in ethylene greater than or less than t
    12·1 answer
  • According to the kinetic molecular theory of gases, molecules of an ideal gas
    8·1 answer
  • A substance joined by this type of bond shares electrons
    12·1 answer
  • How many grams of iron can be made with 21.5g of Fe2O3
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!