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
beks73 [17]
4 years ago
9

As ice melts and changes from solid to liquid, A) entropy increases. B) kinetic energy decreases. C) an exothermic reaction occu

rs. D) the random movement of molecules remains constant.
Chemistry
1 answer:
Mazyrski [523]4 years ago
3 0

Answer:

C) Because it gets hotter

You might be interested in
I do not understand this question if someone could help please
zzz [600]

\bold{\huge{\blue {\underline{ Answer}}}}

  1. <em>Potassium </em><em>=</em><em> </em><em>K3PO4</em><em> </em><em>,</em><em> </em><em>K2O</em><em>, </em><em>KF</em><em>, </em><em>KBr</em><em>, </em><em>KNO2</em><em> </em><em>,</em><em> </em><em>K2SO4</em><em> </em>
  2. <em>Sodium </em><em>=</em><em> </em><em>Na3PO4</em><em> </em><em>,</em><em> </em><em>Na2O</em><em>, </em><em>NaF</em><em>, </em><em>NaBr</em><em>, </em><em>NaNO</em><em>3</em><em> </em><em> </em><em>,</em><em> </em><em>Na2SO4</em>
  3. <em>Magnesium </em><em>=</em><em> </em><em> </em><em>Mg3</em><em>(</em><em>P</em><em>O</em><em>4</em><em>)</em><em>2</em><em> </em><em>,</em><em> </em><em>MgO</em><em>, </em><em>MgF2</em><em> </em><em>,</em><em> </em><em>MgBr2</em><em> </em><em>,</em><em> </em><em>Mg3NO2</em><em> </em><em>,</em><em> </em><em>MgSO4</em><em> </em>
  4. <em>Aluminium</em><em> </em><em>=</em><em> </em><em>AlPO4</em><em> </em><em>,</em><em> </em><em>Al2O3</em><em> </em><em>,</em><em> </em><em>AlF3</em><em> </em><em>,</em><em> </em><em>AlBr3</em><em> </em><em>,</em><em> </em><em>AlNO2</em><em> </em><em>,</em><em> </em><em>Al2</em><em>(</em><em>S</em><em>O</em><em>4</em><em>)</em><em>3</em>
  5. <em>Iron(</em><em>|</em><em>|</em><em>|</em><em>)</em><em> </em><em>=</em><em> </em><em>FePO4</em><em> </em><em>,</em><em> </em><em> </em><em>Fe2O3</em><em> </em><em>,</em><em> </em><em>FeF3</em><em> </em><em>,</em><em> </em><em>FeBr3</em><em> </em><em>,</em><em> </em><em>F</em><em>e</em><em>N</em><em>O</em><em>2</em><em> </em><em>,</em><em> </em><em>Fe2</em><em>(</em><em>S</em><em>O</em><em>4</em><em>)</em><em>3</em><em> </em>
  6. <em>Copper(</em><em>|</em><em>|</em><em>)</em><em> </em><em>=</em><em> </em><em>Cu3</em><em>(</em><em>P</em><em>O</em><em>4</em><em>)</em><em>2</em><em> </em><em>,</em><em> </em><em>CuO</em><em>, </em><em>CuF2</em><em> </em><em>,</em><em> </em><em>CuBr2</em><em> </em><em>,</em><em> </em><em>Cu3NO2</em><em> </em><em>,</em><em> </em><em>CuSO4</em>
  7. <em>Barium </em><em>=</em><em> </em><em>Ba3</em><em>(</em><em>P</em><em>O</em><em>4</em><em>)</em><em>2</em><em> </em><em>,</em><em> </em><em>BaO</em><em>, </em><em> </em><em>BaF2</em><em> </em><em>,</em><em> </em><em>BaBr2</em><em> </em><em>,</em><em> </em><em>Ba3NO2</em><em> </em><em>,</em><em> </em><em>BaSO4</em><em> </em><em>.</em>
4 0
2 years ago
Environmental scientists are unconcerned with methods to preserve natural resources.
Setler [38]
Answer
FFFFFFFFFFFFF
8 0
3 years ago
can someone help me with these? I just started chemistry this semester, and since it's involving math I don't see myself doing g
V125BC [204]

Any non zero digits are significant. (120 has 2 sig figs)

Zeroes between significant digits are significant. (103 has 3 sig figs)

Zeroes only count if there is a decimal point and if they are following a significant digit. (.600 has 3 sig figs; .067 has 2 sig figs)

1) <u>1278.50</u> = 6 sig figs

2) <u>12</u>0000 = 2 sig figs

3) <u>90027.00</u> = 7 sig figs

4) 0.00<u>53567</u> = 5 sig figs

5) <u>67</u>0 = 2 sig figs

6) 0.00<u>730</u> = 3 sig figs

That's all I'm gonna do so yeah.

Now for the rounding, it's basically rounding but it must have the x amount of sig figs after rounding. It's pretty hard to explain.

19, I'm not really sure. Might be 120 with a decimal point at the end.

20) 5.457, alright so here, since we are rounding to three significant digits, we look at the third sig fig. The third sig fig here would be 5. Then we just round. Since the number next to 5 is 7, we round 5 up to 6.

So 5.457 rounded to 3 sig figs would be 5.46

21) 0.0008769, the third sig fig here would be 6. You round 6 up to 7 because the number next to it is 9.

So 0.0008769 rounded to 3 sig figs would be 0.000877

So I hope you get it, I'm gonna let you do the rest.

4 0
2 years ago
Why do new moons parallel the path of the sun?
alexdok [17]
It turns out the plane in which the moon moves is related to the plane of earth's orbit around the sun.
4 0
3 years ago
help plz Which list is in order from smaller to larger sediment particles? A. sand, silt, clay B. clay, silt, sand C. silt, sand
MariettaO [177]

Answer : The correct option is B (clay, slit, sand).

Explanation :

Soil particles are of three types : Sand, Slit and clay. Most of the soils particles are made up of a combination of sand, slit and clay.

Particle size range of the sand = 2.00 -0.05 mm

Particle size range of the slit = 0.05 -0.002 mm

Particle size range of the sand = less than 0.002 mm

Sand is the largest soil particle, clay is the smallest soil particle and slit particle is present in between the sand & clay particle.

Therefore, the order from smaller to larger sediment particles is

Clay > Slit > Sand

5 0
4 years ago
Other questions:
  • The base unit for mass in the meric system is the...
    13·1 answer
  • Aspirin (acetylsalicylic acid, C9H8O4) is a weak monoprotic acid. To determine its acid-dissociation constant, a student dissolv
    7·1 answer
  • If a rock sample has a mass of 2.7g and a volume of 1.1cm^3 what type of rock is it
    11·2 answers
  • If two atoms of an element are isotopes, then they have a different
    7·1 answer
  • Which of the following substances produces carbon dioxide and water when burned
    7·1 answer
  • Which of these elements has the highest electronegativity
    15·1 answer
  • Who else dislikes there siblings?????
    7·2 answers
  • A boulder sits at rest on top of a mountain. What conclusion can be made about the forces acting on the boulder
    13·1 answer
  • Answer in the blank 1. Broken glass jar 2. Food scraps 3. Cooked rice 4. Plastic bags 5. Water​
    12·1 answer
  • If air was not allowed to stream
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!