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
timurjin [86]
3 years ago
10

Please please help:(

Chemistry
1 answer:
borishaifa [10]3 years ago
4 0
Magnesium and silver
You might be interested in
Which of the following displays the correct change in enthalpy and best describes the reaction below? 2CsCl(aq) + Na2SO4(aq) 2Na
Bond [772]
We subtract the enthalpies of the reactants from that of the products:
2\Delta
 H(NaCl)+\Delta H(Cs_2 SO_4)-2\Delta H(CsCl)-\Delta H(Na_2 SO_4) \\ 
=2(-411)+(-1400) -2(-415)-(-1380) \\ = -12 kJ
Since this is < 0, this is an exothermic reaction.

3 0
3 years ago
The 500kg concrete culvert has a mean radius of 0.5m. part a if the truck has an acceleration of 3m/s2, determine the culvert's
jarptica [38.1K]

<u>Given: </u>

Radius of culvert, r = 0.5 m

Tangential acceleration of the truck, a = 3 m/s2

<u>To determine:</u>

The angular acceleration, α

<u>Explanation:</u>

The tangential acceleration is related to the angular acceleration through the radius as:

a = rα

α = a/r = 3 ms⁻²/0.5 m = 6 s⁻²

Ans: The angular acceleration is 6 s⁻²


6 0
3 years ago
How does a system at equilibrium respond to the addition of more reactant
grin007 [14]

Answer:

It favors the forward reaction.

Explanation:

According to Le Chatelier's Principle, when a system at equilibrium suffers a perturbation, the system will react in order to counteract the effect of such perturbation.

If more reactant is added, the system will try to decrease its concentration. It will do so by favoring the forward reaction, decreasing the concentration of the reactant  and increasing the concentration of the products, in order to re-establish the equilibrium.

7 0
3 years ago
When a physical change in a sample occurs, which of the following does NOT change?
Vanyuwa [196]
I think thee correct answer from the choices listed above is option D. <span>When a physical change in a sample occurs, composition of the sample does not change. It stays the same. Also, the properties of the sample will still be the same. Hope this answers the question.</span>
8 0
3 years ago
Read 2 more answers
I need to know what occupied vs full means for chemistry
Anastaziya [24]
You can get the answer on quizlet or google
7 0
3 years ago
Other questions:
  • How many moles of heptane will completely react with 1.42 of molecular oxygent
    7·1 answer
  • The tendency of an atom to attract a pair of electrons that will bond is known as __________.
    9·1 answer
  • What is the percent by mass of water in Na2SO4 • 10H2O?
    13·1 answer
  • What is the 45 element on the periodic table
    9·2 answers
  • What is the molar mass of an unknown gas with a density of 2.00 g/L at 1.00 atm and 25.0 °C?
    5·1 answer
  • Consider a large number of hydrogen atoms with electrons randomly distributed in the n = 1, 2, 3, and 4 orbits. How many differe
    7·1 answer
  • Help me, please!!!!!!!!!!!!
    11·1 answer
  • Cuando realizamos la "Estructura de
    8·1 answer
  • What characteristic of the light is affected by the amplitude of the light
    10·2 answers
  • When heat is removed from a liquid the motion of its particles slow down and they
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!