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
nirvana33 [79]
3 years ago
12

Which substance is least soluble at 90°C?

Chemistry
1 answer:
jekas [21]3 years ago
7 0

Answer:

NH3

Explanation:

Which salt is least soluble at 90 degrees Celsius

You might be interested in
Give the number of significant figures in this number: 40
lubasha [3.4K]
The # 4 is the only significant # in 400.. Trailing 0's r not significant unless there is a decimal.

in 0.7000, there are 4 significant #'s.

8 0
3 years ago
Read 2 more answers
Name at least three types associated with the microwave
Bond [772]
Hi , if you are asking for the types of energy , here's your answer:

1. Radiative energy , because the microwave is releasing radiation.
2.Light energy , because there is light inside the microwave.
3.electronic energy , because the microwave is using electricity.
8 0
3 years ago
The teal line of the hydrogen emission spectrum has a wavelength of 486.0 nm. A hydrogen emission spectrum has a violet, a blue,
Sloan [31]

Answer:

The correct answer to the following question will be "4.08 × 10⁻¹⁹ Joule".

Explanation:

Given:

Wavelength, λ = 486.0 nm

As we know,

E=h\upsilon =\frac{hc}{\lambda}

On putting the estimated values, we get

⇒          =\frac{1241.5 \ ev\ nm}{486 \ nm}

⇒          =2.554 \ ev

∴ 1 ev = 1.6 × 10⁻¹⁹ J

Now,

Energy, E=2.554\times 1.6\times 10^{-19}

⇒               =4.08\times 10^{-19} Joule

7 0
3 years ago
How many molecules are in 2.00 moles of h2o
Sedaia [141]
1 mole = 6.022×10^23 atoms. 1 water molecule = 2 Hydrogen atoms + 1 oxygen atom. So, 1 mole H2O = 1.2044×10^24 hydrogen atoms. Therefore 2 mole H2O will have 2.4088×10^24 hydrogen atoms.
8 0
3 years ago
In your own words what is equilibrium?
fenix001 [56]

Answer:

when the forward and reverse reactions occur at equal rates.

chemical reaction is in equilibrium when the concentrations of reactants and products are constant - their ratio does not vary.

8 0
3 years ago
Other questions:
  • Why do some scientists prefer to express concentrations of water contaminants in the units ppm and ppb rather than molarity?
    13·1 answer
  • HELPPPPPP I NEED HELP PLZ THANK U
    11·2 answers
  • Which of the following is an example of convection?
    15·1 answer
  • The __is (are) an example of a transform boundary.
    10·1 answer
  • What is an isotope ? how is the mass calculated ?
    15·1 answer
  • What does the element symbol on the periodic table indicate?
    9·1 answer
  • What is the density of an object with a mass of 2 g & a volume of 8 ml ?
    6·1 answer
  • How many moles are in 3.612x10^24 atoms of phosphorus?
    13·1 answer
  • PLS HELP I WILL MARK BRAINLYEST BUT PLS JUST HELP MEEEEEEEEEEEEEE
    10·2 answers
  • Arrange the following elements based on their size (atomic radii) from largest to smallest: Ca, Ge, Br, K, Kr
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!