According to the law of conservation of energy, the energy released by the system must be transferred to and absorbed by the surroundings

Answers

Answer 1

Answer: True!
Energy released by system is absorbed by surroundings.

Related Questions

Compare the hydronium ion concentration of the solution having a pH of 2.0 to the hydronium ion concentration of the other solution given to the student.
Which is a redox reaction?A) 2KBr + F2 ---> 2KF + Br2 B) 2HCL + Mg(OH)2 --> 2HOH + MgCl2 C) 2NaCl + H2SO4 --> Na2SO4 + 2HCl D) Ca(OH)2 + Pb(NO3)2 --> Ca(NO3)2 + Pb(OH)2 I know the answer is A, but confused as to why that is. Can someone explain this for me? Thanks.
Is this correct? ***A Chemical Formula shows the elements and ratio of atoms in a compound***
There are three stable atoms of Argon (Atomic Number 18): Argon-36, Argon-38 andArgon-40. What would the atoms of these isotopes have in common? What would be different about their atoms? (4 points) HELP ASAP
Rank the following structures in order of decreasing electrophilic strength.

Which of the following could be a correct measurement using the full precision available for this balance?24.0 g
24.00 g
24 g
24.0000 g

Answers

Answer : Option A) 24.0 g

Explanation : From the given choices the correct measurement using the full precision available for this balance will be 24.0 g as precision shows how close all of taken measurements are to each other. Therefore, measurements can have precision but not very close accuracy. Hence, 24.0 g confirms the criteria of being the most precise measurement amongst the given options. It will depend on how many times you weigh the same product and get the same value. This will decide the precision.

the answer would be 24.0 because it is such a precise measurement.

In the same science fair,Tina ask the question "does caffeine increase the heart rate of an earthworm?" In test 1,she measures the heart rate by looking at the earthworm under a microscopes, the heart rate if 50 beats per minute. In test 2,she places a few drops of caffeine on the earthworms skin and measures the rate again.in this test the heart rate is 68beats per minuteWhat is the independent variable in this experiment
What is the dependent variable in this experiment
Tina's experiment should have included a hypothisis .in a complete sentence,suggest a hypothesis for Tina's experiment

Answers

The independent variable is the one that does not change depending on other variables - so here it would be the presence or the absence of caffeine - this is dependent on Tina's actions, but not on other variables in the experiment. The dependent variable is the heart rate - it is assumed to depend on the presence or absence of caffeine. A hypothesis could be that "Caffeine causes an increase of heart rate in earthworms" - and this hypothesis is what the experiment is testing.

What is the mole ratio of NaOH To Al(OH)3

Answers

The Molar ratio identify how many moles of product and reactant. are formed during a reaction.
Here, we have 1 NaOH and 3 Al(OH), which mean that the molar ratio of NaOH to Al(OH)3 is 1:3 (or 1/3)

Therefore, 1.2 moles of NaOH will produce (1/3) * (1.2) = 0.4 Moles of Al(OH)3

Hope this Helps :D

When iron rusts in air, iron (III) oxide is produced. How many moles of oxygen react with 2.4 mol of iron in the rusting reaction shown below ?

Answers

the answer is 2.4*3/2 = 3.6 mol o2

A saturated solution of NaNO3 is prepared at 60.°C using 100. grams of water. As this solution is cooled to 10.°C, NaNO3 precipitates (settles)out of the solution. The resulting solution is saturated. Approximately how many grams of NaNO3 settled out of the original solution?
(1) 46 g (3) 85 g
(2) 61 g (4) 126 g

Answers

The answer is 46 g

The explanation :

According to the attached curve of the relation between the temperature and the grams in solutions:

-we can see from the curve that the grams of NaNO3 at 60°C = 126 g

-and the grams of NaNO3 at 10°C = 80 g

-so, To get the grams of NaNO3 settled out of the original solution, we will subtract the grams of NaNO3 at 10°C - the grams of NaNO3 at 60°C

126 g - 80 g = 46 g

∴ the correct answer is 46 g

The answer is (1) 46g. This is related to the solubility curve of the NaNO3. The solubility of NaNO3 under 60 ℃ is 126 g. And the solubility under 10 ℃ is 80 g. So the NaNO3 precipitates is 126-80=46 g.

A plant fertilizer contains 13 % by mass nitrogen ( n ). in a container of soluble plant food, there are 10.0 oz of fertilizer. how many grams of nitrogen are in the container?

Answers

There are 36.955 grams of nitrogen in the container.

Other Questions

You are throwing an object with a force of 140 N. The object accelerates 19.0 m/s/s. What is the mass of the object?

Which of the following descriptions explain the process of water freezing? A. What're molecules speed up until the escape into a different phase. B. Water molecules slow done until they begin to form stronger bonds together. C. As water molecules cool, their shape changes from rounded to irregular, making them more likely to link to one another D.Water molecules are squeezed together by high pressure until they begin to stick to one another.

Can i get help with this dont really get it

SOMEONE HELP ME PLEASEEEE!!!What is the outermost layer of the Earth called?