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
Andreyy89
3 years ago
6

I just need help with 2 chemistry questions! Can you please help me? I will give brainliest answer! 

Chemistry
2 answers:
Wewaii [24]3 years ago
7 0

Question 1

B. The two metal samples will change temperature at about the same rate.

D. The gold would sink to the bottom if placed in the mercury.


Question 2

C. 2

telo118 [61]3 years ago
6 0
1
C. The gold would float if placed in the mercury.
A. The mercury will change temperature at a much faster rate under the same heating conditions.
You might be interested in
If you knew the number of valence electrons in a nonmetal atom how would you determine the valence of the element. (Ignore hydro
SIZIF [17.4K]

Answer:

The possible valances can be determined by electron configuration and electron negativity

Good Luck even though this was asked 2 weeks ago

Explanation:

All atoms strive for stability. The optima electron configuration is the electron configuration of the VIII A family or inert gases.

Look at the electron configuration of the nonmetal and how many more electrons the nonmetal needs to achieve the stable electron configuration of the inert gases. Non metals tend to be negative in nature and gain electrons. ( They are oxidizing agents)

For example Florine atomic number 9 needs one more electron to reach a valance number of 8 electrons to equal Neon atomic number 10. Hence Flowrine has a valance of -1

Oxygen atomic number 8 needs two more electrons to reach a valance number of 8 electrons to equal Neon atomic number 10. Hence Oxygen has a valance charge of -2.

Non metals with a low electron negativity will lose electrons when reacting with another non metal that has a higher electron negativity. When the non metal forms an ion it is necessary to look at the electron structure to determine how many electrons the element can lose to gain stability.

For example Chlorine which is normally -1 like Florine when it combines with oxygen can be +1, +3, + 5 or +7. It can lose its one unpaired electron, or combinations of the unpaired electron and sets of the three pairs of electrons.

6 0
2 years ago
Your bedroom gets direct sunlight through a window during the hottest times of the day. you ask your mom to turn down the thermo
Kipish [7]

If you take your mom's advice, a. the room will be cooled by minimizing heat transfer by reflection.

The Sun is heating your room by its <em>radiation</em>.

The aluminium foil is shiny, so it reflects the Sun’s radiation back outside the window.

<em>Convection</em> is the transfer of heat caused by the air moving around in your room.

<em>Conduction</em> occurs only when a hot object is in contact with a cooler object.

5 0
3 years ago
1. When this equation is balanced, Fe + 02 -.--&gt; Fe203, what is the
Vilka [71]

Fe + O2 → Fe2O3

After balancing the eq.

4Fe + 3O2 → 2Fe2O3

Hope this will help u mate :)

4 0
3 years ago
Under which class of substitution reaction does this reaction appear to fall
liberstina [14]

This reaction is most likely to fall under SN2 because the thing called carbonication does not occur in SN1. The carbon forms a partial bond with the nucleophile during the intermediate phase and the leaving group. So for this question the reaction will fall under SN2.

3 0
3 years ago
What is the mass in grams of 17.46 mL m L of acetone?
Crazy boy [7]

Answer:

17,46gram

Explanation:

because 1l is egal to kg

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the approximate mass of iron
    15·1 answer
  • Sentences with the words kinetic energy of matter and temperature
    11·1 answer
  • Which is the properly balanced equation that shows the synthesis of limewater, Ca(OH)2, from calcium oxide and water?
    14·2 answers
  • If the net force on a hot-air balloon is directed straight upward, which way does the acceleration point?
    12·1 answer
  • Rank the following dienes in order of increasing stability:
    5·1 answer
  • ____________________ solids break up into individual neutral particles when dissolved in a solvent.
    15·2 answers
  • A skier is skiing down a slope on the mountain. Is the mechanical energy conserved? Why or why not?
    14·2 answers
  • How many molecules are found in 90 grams of Al(OH)3?
    6·1 answer
  • 4. How many Carbon atoms are present in 1.00 mole of methane, CH,?
    9·1 answer
  • Can two objects be made of the Same substance if they have the same volume
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!