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
juin [17]
3 years ago
9

Two changes are described below. Ice melts to form water. Sugar cubes dissolve in hot coffee. Which statement is true about the

two changes? Both are chemical changes because there is a change in the composition of ice and sugar. Both are physical changes because there is a change in the physical states of ice and sugar. A is a physical change due to a change of state, but B is a chemical change because new molecules are formed. A is a chemical change due to a change of state, but B is a physical change because new molecules are formed.
Chemistry
2 answers:
almond37 [142]3 years ago
7 0

Answer:

both are physical changes

Explanation:

mrs_skeptik [129]3 years ago
6 0

Answer:

Both are physical changes because there is a change in the physical states of ice and sugar

Explanation:

1. melting of ice to water is a change of state from solid to liquid, although there is a change in the physical state but the chemical nature of the water remain unchanged. no new substance is produced since ice and water is the same chemically. since the reaction can be reversed by freezing. This shows a physical change

2. Dissolving sugar cubes in hot coffee is also a physical change since the sugar is dissolved into the coffee but the chemical natures of the sugar and the coffee remain the same. no new substance is formed.  that is a chemical change

You might be interested in
Which of the following is a correct formula unit? PbCl AlP Li3Al ClO
zavuch27 [327]

Answer:  AIP  

There are two types of substances mixture and pure substance. Mixture has NO chemical formula and a pure substance has a chemical formula. There are two types of pure substances, elements (mono atomic and molecular) and compounds ( covalent and ionic).  

Ionic compounds do not exist in independent molecular form. They form three dimensional crystal lattice, in which each ion is surrounded by oppositely charged ion.  so the ratio of ion is called the formula unit  


3 0
4 years ago
Read 2 more answers
What’s the fastest way to balance chemical equations
Anon25 [30]

Hey there!

The best way to balance chemical equations is to first start by balancing polyatomic ions such as OH and SO₄.

Next, balance other elements, but save elements that are by themselves for last, such as H₂ or Fe. Once you balance everything else you can do the ones by themselves, it's much easier.

Hope this helps!

6 0
3 years ago
Predict: In each "Climate type" box, Highlight the condition you think will lead to the fastest weathering for the given weather
yanalaym [24]

Answer:

Frost Wedging - Hot and dry

Clay Formation - Cold and Wet

Dissolving - Cold, and dry

Explanation:

The frost wedging happen when the climatic condition is hot and dry. The dry weather compensates the heat and the rock wedging happens quickly. For clay formation the weather has to be cold and wet. The cold weather will make the sand indulge with rock particles resulting in the clay formation.

6 0
3 years ago
Values for the molar mass of nitrogen, oxygen, and nitrogen dioxide
CaHeK987 [17]

Answer:

n=N/Na

n =  \frac{8.23 \times {10}^{22} }{6.02  \times {10}^{23} }  = 0.1367 \: mol

answer: 0.14 mol

Explanation:

5 0
3 years ago
An acetic acid buffer solution is required to have a pH of 5.27. You have a solution that contains 0.01 mol of acetic acid. What
Kipish [7]

Answer:

the molarity of sodium acetate is 53

7 0
3 years ago
Other questions:
  • What is the solubility of argon (in units of grams per liter) in water at 25 °C, when the Ar gas over the solution has a partial
    9·1 answer
  • The structure of ozone most closely resembles 1. , a linear molecule with different lengths of chemical bonds. 2. , a bent molec
    6·1 answer
  • Calculate the amount of heat energy required to evaporate 27.5 g of water at 100.0°C. (molar heat of vaporization of liquid wate
    11·1 answer
  • Which process would most likely be employed to separate a mixture of sand and water?
    9·2 answers
  • Consider the following system at equilibrium: P(aq)+Q(aq)⇌3R(aq) Classify each of the following actions by whether it causes a l
    12·1 answer
  • SHOW WORK<br> A football field is 120.0 yards long, how long is a football field in inches?
    7·1 answer
  • Which of the following substances would you expect to have a low melting point?
    9·1 answer
  • Finish this formula: Speed = _______ divided by time
    8·2 answers
  • Alcohol or acid will travel the furthest up the paper chromatography? pls help thanks and explain
    14·1 answer
  • What was the main weakness of Bohr's model of the atom?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!