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
zvonat [6]
3 years ago
8

ESTION ONE (30 MARKS)

Chemistry
1 answer:
loris [4]3 years ago
6 0

Answer:

Explanation:

Adiabatic and isothermal system - an adiabatic process, in which no heat flows into or out of the gas because its container is well insulated, Q = 0. If there is also no work done, i.e. a free expansion, there is no change in internal energy. For an ideal gas, this means that the process is also isothermal.

Homogeneous and heterogeneous solution -  homogeneous mixture consists of a single phase. A heterogeneous mixture consists of two or more phases. When oil and water are combined, they do not mix evenly, but instead form two separate layers.

You might be interested in
Select the correct answer. What energy does a rock resting on a hilltop store? A. gravitational energy B. chemical energy C. the
Colt1911 [192]

Answer:

A.

Explanation:

I chose this because it seems more reasonable . Because its in the air so im guess that its gravitational bc to stay on top of a hill you need balance . Im sorry if its wrong k . I tried .

7 0
3 years ago
Read 2 more answers
;)..........................................................................................
kotykmax [81]

Answer:

;)..........................................................................................

Explanation:

7 0
3 years ago
Read 2 more answers
If the crucible originally weighs 3.715 g and 2. 000 g of hydrate are added to it , what is the weight of the water that is lost
dimulka [17.4K]
For this, you need to know 1) the mass of the hydrate and 2) the mass of the anhydrous salt. Once you have both of these, you will subtract 1) from 2) to find the mass of the water lost.

From the problem, you know that 1) = 2.000 g.

Now you need to find 2). You know that your crucible+anhydrous salt is 5.022 g. To find just the anhydrous salt, subtract the mass of the crucible (3.715 g).

1) = 5.022 g - 3.715 g = 1.307 g

Now you can complete our original task.

Mass H2O = 2) - 1) = 2.000 g - 1.307 g = 0.693 g.


4 0
4 years ago
What is the percent by weight (w/w%) of sugar in soda? Assume the average mass of sugar in soda is 23.0 g and the total mass is
Nina [5.8K]

The percent by weight (w/w%) of sugar in soda : 6.216%

<h3>Further explanation</h3>

Given

mass of sugar = 23 g

total mass = 370 g

Required

the percent weight

Solution

%weight = (mass of solute : mass of solution) x 100%

solute = sugar

solution = solvent + solute = water + sugar

percent weight of sugar in soda :

= (23 : 370) x 100%

= 6.216 %

7 0
3 years ago
Use Table 1: Analysis of Decay in the laboratory guide to answer this question: Scientists find a piece of wood that is thought
sashaice [31]
1/2=5750 years, 1/2(1/2)=1/4, (1/2)(1/2)(1/2)=1/8, (1/2)(1/2)(1/2)(1/2)=1/6
4 halflives have passed so 4(5750)=23000 years since the tree was chopped down
1000000 atoms (1/2)=500000 atoms(1/2)=250000(1/2)=125000(1/2)=62500 atoms would remain in the wood after 4 halflives
Dinosaurs became extinct around 62 million years ago, so if 14C's half life has a value of 5750 years, it would be gone or in such small amounts that dating would be ineffective today.
As Potassium decays into Argon in 1.3 billion years, apart from volcanic activity, it would enable geologists to effectively date things that are really, really, really old. 
8 0
3 years ago
Other questions:
  • How many total atoms are in 0.210 g of P2O5?
    8·1 answer
  • Write the half reactions for 2Li + H2 -&gt; 2LiH.
    8·1 answer
  • An organic compound of relative molecular mass 46,on analysis was found to contain 52.0% carbon, 13.3% hydrogen and 34.7% oxygen
    10·1 answer
  • How are ionic bonds formed?
    10·1 answer
  • The Keq for the equilibrium below is 5.4 × 1013 at 480.0 °C. 2NO (g) + O2 (g) 2NO2 (g) What is the value of Keq at this temperat
    15·1 answer
  • An oxide named CrO. So the salt of chromium has the corresponding valence​
    12·1 answer
  • Anybody know how I can get the answers from a Y o u t u b e video that’s an hour and 54 mins long without actually watching it?
    9·1 answer
  • A container containing 5.00 L of a gas is collected at 100 K and then allowed to expand to 20.0 L. What must the new temperature
    6·1 answer
  • Which of the following elements will have its valence electrons represented in figure B?
    6·1 answer
  • How many total moles of ions are released when each of the following dissolves in water?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!