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
Rashid [163]
3 years ago
8

Which event is an example of melting?

Chemistry
1 answer:
avanturin [10]3 years ago
8 0

Answer:

A. Wax drips down the side of a lot candle.

Explanation:

The chemical change from solid to liquid. This is a combustion reaction, so carbon dioxide gas and water vapour is also produced but you can't see them

You might be interested in
how is rain, hail, and sleet similar and how are they different. Image of question attached. I really need help
maxonik [38]
Its all water  and sleet and hail is ice 
7 0
3 years ago
Water has a slight negative charge around its oxygen atom, and a slight positive charge around its hydrogen atoms Which type of
allochka39001 [22]
C.
Water is polar because one side of the molecule is positive and the other is negative.
3 0
3 years ago
Read 2 more answers
What causes pressure inside a helium balloon?
kupik [55]

Explanation:

So the gas pressure of a helium balloon arises from the impact of the collisions of the helium atoms between themselves and with the inside surface of the balloon. Of course, the outside atmosphere similarly exerts a pressure on the outside of the balloon.

7 0
3 years ago
If 42.8 mL of 0.204 M HCl solution is needed to neutralize a solution of Ca(OH)2, how many grams of Ca(OH)2 must be in the solut
Aneli [31]

Hey There!

At neutralisation moles of H⁺ from HCl  = moles of OH⁻ from Ca(OH)2  so :

0.204 * 42.8 / 1000  => 0.0087312 moles

Moles of Ca(OH)2 :

2 HCl + Ca(OH)2 = CaCl2 + 2 H2O

0.0087312 / 2 => 0.0043656 moles (  since each Ca(OH)2 ives 2 OH⁻ ions )

Therefore:

Molar mass Ca(OH)2 = 74.1 g/mol

mass = moles of Ca(OH)2 * molar mass

mass =  0.0043656 * 74.1

mass = 0.32 g of Ca(OH)2


Hope that helps!

6 0
3 years ago
Write the chemical equation for the reaction of lithium hydroxide (LiOH) with an Arrhenius acid of your choosing. Name and write
Inessa05 [86]
<h3>Answer:</h3>

LiOH(aq) +HCl(aq)→ LiCl(aq) + H₂O(l)

Salt formed is LiCl

<h3>Explanation:</h3>
  • Arrhenius acid refers to a substance that ionizes in water to generate protons or hydrogen ions.
  • Examples of Arrhenius acid include acids such as HCl, H₂SO₄ and HNO₃.
  • A reaction between Lithium hydroxide and an Arrhenius acid such as HCl will yield a salt and water.

That is;

LiOH(aq) +HCl(aq)→ LiCl(aq) + H₂O(l)

  • The salt formed is LiCl
  • The reaction is an example of neutralization reaction.
5 0
3 years ago
Other questions:
  • Plz answer ASAP!
    9·2 answers
  • What type of wave can actually reach Earth's inner core
    9·1 answer
  • Please complete sentence. The substances that make up a ____________ are not bonded together, so adding more of one substance in
    12·1 answer
  • Warm air rises because of its
    9·2 answers
  • Giovanni created this chart to study for an exam. Which best describes how to correct the error in the chart? Remove “plastics”
    12·2 answers
  • Water is separated into hydrogen and oxygen gas by electrolysis
    7·2 answers
  • PLEASE HELP MEEEEE
    7·2 answers
  • Help? please and thank you! very much appreciated
    6·1 answer
  • Which of the following is the number of hydrogen atoms in a mole of hydrogen gas
    14·1 answer
  • If sodium (Na) is combined with Chlorine (CI), the compound would have which formula? A. Naci 0 O B. CINa C. ClaNa D. Na2C14​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!