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
Svetllana [295]
3 years ago
9

I need help what to write down for the blanks

Chemistry
1 answer:
quester [9]3 years ago
3 0

Answer:

Hey dear...

Explanation:

<em>Pl</em><em>z</em><em> </em><em>up</em><em>load</em><em> </em><em>a</em><em> </em><em>pi</em><em>c</em><em> of</em><em> </em><em>ur</em><em> </em><em>qu</em><em>estion</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>

You might be interested in
Question 4 (5 points)<br> Which parasite can live in refrigerated conditions?
Mumz [18]
Ticks can live in the winter
3 0
3 years ago
Reaction rate depends on how often molecules come into contact with each other, the way in which they come together, and the amo
loris [4]
The most appropriate answer is D ! temperature !

as when temperature increases KE increases and the collision factor and frequency increases !
5 0
4 years ago
Read 2 more answers
3.0 g aluminum and 6.0 g of bromine react to form AlBr3 2Al+3Br2=2AlBr3 How much product would be produced? How much reagent wou
juin [17]
<span>2Al + 3Br2 -------------> 2AlBr3

</span>3 g Al = 0.11 mol Al. 

<span>6 g Br2 = 0.0375 mole bromine (it is diatomic). </span>

<span>moles of aluminium will take part in reaction = 0.0375 X (2/3) = 0.025. </span>

<span>Gram-mole of AlBr3 will be produced = 0.025 mole = 6.6682 g. 
</span>moles of Al left = 0.11 - 0.025 = 0.086<span>


</span>
8 0
4 years ago
50 mL of 2.2 M HCl is combined with 50 mL of 2.0 M NaOH in a coffee-cup
GaryK [48]

Answer:

-56.1kJ/mol

Explanation:

The reaction between HCl and NaOH is:

NaOH + HCl → NaCl + H₂O + ΔH

<em>Where ΔH is heat change in  the reaction.</em>

<em />

As the temperature of the solution increases, the heat is released and ΔH < 0

The heat released in the reaction is obtained using coffe-cup calorimeter equation:

Q = C×m×ΔT

<em>Where Q is heat</em>

<em>C is specific heat of the solution (4.184J/g°C)</em>

<em>m is mass of solution: Assuming density = 1g/mL, 100mL of solution = 100g</em>

<em>And ΔT is change in temperature (13.4°C)</em>

<em />

Replacing:

Q = C×m×ΔT

Q = -4.184J/g°C×100g×13.4

Q = -5606.6J

Now, in the reaction you have:

<em>Moles HCl:</em>

0.050L * (2.2mol/L) = 0.11 moles

<em>Moles NaOH:</em>

0.050L * (2.0mol/L) = 0.1 moles

That means the moles of reaction are 0.1 moles, and heat change in the chemical reaction is:

5606.6J / 0.1 mol = 56066J =

<h3>-56.1kJ/mol</h3>

<em />

5 0
4 years ago
What's similar about the valence electrons of Carbon and Silicon?
Mars2501 [29]

Answer:

Explanation: Carbon and silicon BOTH come from Group 14 of the Periodic Table , i.e. both formally have the same number of valence electrons, 4 such electrons.........

5 0
2 years ago
Other questions:
  • 65.9% Ba and 34.1% CI
    13·1 answer
  • Draw the Lewis structure of ozone (O3) showing all possible resonance structures if there are any. Determine the formal charge o
    11·1 answer
  • 3. According to the label on a bottle of concentrated hydrochloric acid, the contents are 36.0% HCl by mass and have a density o
    5·1 answer
  • What would happen to the kinetic energy of an object if you doubled the mass
    8·2 answers
  • Consider the following mechanism for the reaction between nitric oxide and ozone:
    12·1 answer
  • When CaCl2 and Zn react together, zinc (Zn) can replace chlorine (Cl) in the compound because zinc is higher on the periodic tab
    5·2 answers
  • WHICH DEFINTIOION GOES TO EACH LETTER/WORD. FILL IN THE BLANK
    11·1 answer
  • I need help. Will mark Brainlist.
    8·1 answer
  • any time an energy conversion takes place, some of the original energy is converted to which one of the following?
    11·1 answer
  • Use the patterns you identified to estimate the likely melting point for potassium (K) in Group 1 and barium (Ba) in Group 2. En
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!