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
11Alexandr11 [23.1K]
3 years ago
10

When water freezes into ice, sme of the properties have changed What stays the same

Chemistry
1 answer:
larisa86 [58]3 years ago
5 0
When water freezes into ice, some of the properties have change. What stays the same.




Answer: 1: Ice Melting is a physical change. When liquid water (H2O) freezes into a solid state (ice), it appears changed; However, this change is only physical as the the composition of the constituent molecules is the same: 11.19% hydrogen and 88.81% oxygen by mass.


Have a goood day!
You might be interested in
Kendra and Jordan gather firewood. The wood is cool to the touch, but the campfire they make warms their hands. Which statement
Free_Kalibri [48]

Answer:

D

Explanation:

6 0
3 years ago
Labels of many food products have expiration dates, at which point they are typically removed from the supermarket shelves. A pa
White raven [17]

Answer:

Explanation:

Since it first order, we use order rate equation

In ( \frac{A1}{A0}) = -kt where A1 is the final quality = 0.8 (80%), A0 is the initial quality = 1 ( 100%)

also, t half life = \frac{In2}{k} where k is rate constant

k = \frac{In 2}{45 days} = 0.0154

In ( \frac{0.8}{1}) = - 0.0154 t

-0.223 / -0.0154 = t

t = 14.49 approx 14.5 days from the date the yogurt was packaged

6 0
3 years ago
Elle wanted to test how temperature affects the rate of evaporation. She had three setups:
Pie

Answer:

Temperature

Explanation:

Here the factor that Elle is controlling is the temperature. So temperature here is the independent variable and the dependent variable is the rate of evaporation of water.  Independent variable is controlled during the experiment setup and the outcome of the dependent variable depends on the independent variable.

5 0
3 years ago
TRUE OR FALSE :Normal cells will not divide unless the nutrients they require are already presen True False
Diano4ka-milaya [45]

Answer:

False

Explanation:

Cell division is a primary procedure by all cells. This process in the life cycle of cells ensures that new cells (daughter cells) are produced. The two major process are; meiosis and mitosis.

Normal cells would divide if the nutrients required are not present, since water is the main nutrient required. But in some cases, the division process may lead to an effect on one or both daughter cells. This effect is called mutation, thereby mutated cells may be produced.

7 0
3 years ago
A scientist wants to determine which fertilizer is more effective—Fertilizer X or Fertilizer Y. The best way for her to proceed
Alecsey [184]

Answer:

The correct answer is "three groups of plants—a group fertilized by X, a group fertilized by Y, and a control group with no fertilizer".

Explanation:

I had to look for the problem to know the options.

The best way to determine which fertilizer is most effective is to have three evaluation groups. One group will be tested with fertilizer X and another with fertilizer Y. By leaving the third group without applying fertilizer, this will be the general pattern for comparing the effectiveness of the other two.

Have a nice day!

4 0
3 years ago
Other questions:
  • 2. How much heat is released when 432g of water cools down from 710C to 180C?
    10·1 answer
  • What is the difference between Polar and Non-Polar molecules?
    11·1 answer
  • Why do we use conversion factors instead of just multiplying or dividing as needed? What’s the advantage?
    13·1 answer
  • How many molecules are in 68.0 g of H2S
    14·1 answer
  • At 170C, a sample of hydrogen gas occupies 125cm3. What will be the volume at 1000C? =161cm3 If the volume of a given mass of ga
    11·1 answer
  • A solution contains 0.182 molmol NaClNaCl and 0.897 molH2OmolH2O. Calculate the vapor pressure of the solution at 55 ∘C∘C. The v
    12·1 answer
  • Which is the best description of description of speed?
    13·2 answers
  • 42. What is the valency of carbon in CH3-CH3, CH2=CH2 and HC=CH​
    7·1 answer
  • Which one of the following is not a mixture?Air,mercury ,milk,cement​
    5·2 answers
  • a student performed an experiment, using a cocktail peanut, before it was burned the peanut half weighed .353 g. After burning t
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!