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
Bogdan [553]
3 years ago
12

Which of phase changes requires an input of energy

Chemistry
1 answer:
Reika [66]3 years ago
4 0

Melting requires an input of energy to convert a solid to a liquid.

Hope this helped!

Good luck :p

Brainliest is always appreciated :)

~ Emmy

You might be interested in
92dm3 of a gas dissolved in a solvent. How many moles is this?
Paul [167]
Assuming its at r. t.p and pressure
no. of moles = 96/24=4moles
altho some books will say that its 23.7dm3/mole but that doesnt really matter because its the process that matters
5 0
4 years ago
Determine the molarity of 56.00 grams of aluminum nitrate in 450 milliliters of solution?
SVETLANKA909090 [29]

Answer:

4.62 M

Explanation:

Molarity = moles/volumes (L), so you need to find the moles and the volumes in liters.

Finding the volume is easy because you just have to convert mL to L, so the volume is 0.45 L

Next, find the moles. You can do this by using the molar mass of aluminum to convert the grams to moles. The molar mass of aluminum is 26.98 g/mol.

56 g * (1 mol/26.98 g) = 2.08 mol

Now, divide the moles (2.08) by the volume (.45 L)

Molarity = 4.62 M

3 0
3 years ago
Which should give the least vigorous reaction when dropped in water?
yanalaym [24]
Which should give the least vigorous reaction when dropped in water?

H2SO4 - sulpfhuric acid
7 0
3 years ago
Consider the following mechanism for the formation of tert-butanol: (CH_3)_3CBr(aq) rightarrow (Ch_3)_3 C^+ (aq) + Br^- (aq) (CH
Sloan [31]

Answer:

The mechanism is in the attached file. The reaction intermediates are the following: C4H8O, C4H9O

Explanation:

Terbutanol is a tertiary alcohol. It is one of the four isomers of butanol. It is a transparent liquid (or a colorless solid, depending on the temperature), with an odor similar to camphor. It is very soluble in water and ethanol.

The scheme shows a protonation of the double bond and the nucleophilic attack of the water to the carbocation, then it loses a proton and the terbutanol is formed.

Download pdf
4 0
3 years ago
HURRY PLEASE!! A student builds a model of a town. The model's scale in 1:48. Fill in the missing
kherson [118]
123 store stop
School and store
48
5 0
3 years ago
Other questions:
  • If a substance changes its shape and size, is it a physical or chemical change? - chemical - physical - both
    9·1 answer
  • Explain the value or importance of using the International System of Units when describing motion. Provide an example that suppo
    9·1 answer
  • What is the term for an atom with an unequal number of protons and electrons?
    8·1 answer
  • The electronegativity is 2.1 for H and 3.0 for N. Based on these electronegativities, NH4 would be expected to The electronegati
    7·2 answers
  • Aqueous sodium hydroxide was mixed with aqueous zinc(ii) nitrate, and a crystallized zinc(ii) hydroxide product was formed. cons
    12·1 answer
  • Why would an element like chlorine prefer to exist as a diatomic molecule instead of as an atom?
    10·1 answer
  • 7) Determine the number of tin atoms in 7.5 moles of tin.<br> The molar mass of tin is 118.71 g/mol
    14·1 answer
  • Water has a specific heat of 4.18 J/g°C. If 35.0 g of water at 98.8°C loses 4.94 kJ of
    6·1 answer
  • How many moles are equal to 89.23 g of calcium nitrate?
    6·1 answer
  • Why cant you see individual atoms without a special tool​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!