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
earnstyle [38]
3 years ago
15

Describe a process in which energy changes form at least two times explain how the law of conservation of energy applies to the

process you describe

Chemistry
1 answer:
Dmitry_Shevchenko [17]3 years ago
5 0
A pendulum.  Hold it high and it has potential energy but no kinetic energy because it is still.  As it moves down when you drop it, it changes to kinetic energy and moves faster and faster until it's at the bottom where it has no potential energy.  However, it still has momentum, so now it is changed to potential energy as it moves up the other side
You might be interested in
What are even covalent chlorides? Question D
liq [111]

Answer:

The chlorine atom (or atoms) is covalently bonded by a shared pair of electrons to the other element.

Explanation:

4 0
3 years ago
For the reaction shown, calculate how many moles of NH3 form when 16.72 moles of reactant completely reacts:
Agata [3.3K]

Answer : The moles of NH_3 formed are, 22.3 moles.

Explanation : Given,

Moles of N_2H_4 = 16.72 mol

The given chemical reaction is:

3N_2H_4(l)\rightarrow 4NH_3(g)+2N_2(g)

From the balanced chemical reaction, we conclude that:

As, 3 moles of N_2H_4 react to give 4 moles of NH_3

So, 16.72 moles of N_2H_4 react to give \frac{4}{3}\times 16.72=22.3 moles of NH_3

Therefore, the moles of NH_3 formed are, 22.3 moles.

8 0
3 years ago
The inside window pane in your house feels very cold to touch on a winter night. How does the heat transfer?
kondaur [170]

Answer:

its B

Explanation:

Because its can only go cold to hot. -hope this help :)

4 0
3 years ago
Element X is in group 2, and element Y is in group 7, of the periodic table. which ions will be present in the compound formed w
12345 [234]

Answer:

Element X has valency 2 while Y Valency 2, element Y has high tendency of gaining electrons for its stability thus the compound formed will be B

elements X is positively charged while Y will be negatively charged

8 0
2 years ago
Which equation is used to help form the combined gas law?<br> eP, V, P, V, т.
alexdok [17]

Answer:

The combined gas law is formulated from PV/T =K.

Explanation:

The combined gas law comprises of Boyle's law, Charles's law and Gay lusaac's law. This laws were not discovered but simply put together considering other cases of ideal gas law. It states that if the amount of gas is left unchanged, the ratio between the pressure, volume, and temperature is constant.

7 0
3 years ago
Other questions:
  • What happens when an atom gains an electron
    15·2 answers
  • Consider the unbalanced equation for the combustion of hexane:
    14·1 answer
  • QUESTION: A phenomenon can best be described as a ________________________ ________________________.
    10·2 answers
  • Which chemical symbol describes an element?<br> o H2O<br> o 02<br> o CH4<br> o H2 SO4
    14·2 answers
  • Describe five sources of chemical weathering
    5·1 answer
  • Is the following equation balanced? Why or why not?<br> 2H2 +02 → 2H,0
    12·1 answer
  • calculate the molarity of a solution that contains 2 moles of NaOH dissolve in 0.5 liter of the solution
    6·1 answer
  • Use your periodic table of elements. Take any element from the second column, except for beryllium and calcium, and answer the f
    10·2 answers
  • If the density of methanol is 0.791g/ml, what is the mass of 0.750L of methanol
    13·1 answer
  • Which of the following rules is applicable for balancing a chemical equation?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!