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
Alinara [238K]
2 years ago
8

I need help I don’t understand this and it’s due tmr!

Chemistry
2 answers:
loris [4]2 years ago
7 0
It’s the second one it’s the only one that makes sense
Lynna [10]2 years ago
5 0

Answer:

the second one because it has heat waves sending out

You might be interested in
How many moles of SnF₂ will be produced along with 48 grams of H₂? *
KIM [24]

Answer: 24 moles of SnF_2 are produced.

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

{\text{Moles of}  H_2}=\frac{48g}{2g/mol}=24moles

Sn+2HF\rightarrow SnF_2+H_2

According to stoichiometry :

1 mole of H_2 is accompanied with = 1 mole of SnF_2

Thus 24 moles of H_2  is accompanied with =\frac{1}{1}\times 24=24moles  of SnF_2

Thus 24 moles of SnF_2 are produced.

8 0
3 years ago
Determine the oxidation number of the element that is underlined within the compound. BaCrO4 (Cr is underlined)
Alex777 [14]
I think the answer is +6
7 0
3 years ago
Read 2 more answers
Write an equilibrium equation that shows bisulfate acting as a weak acid in water.
NemiM [27]

Answer:

Explanation:

Bisulphate ion is a weak acid as it can form hydronium ion in water .

HSO₄⁻ + H₂O ⇄ SO₄⁻² + H₃O⁺

The equilibrium constant of this reaction is very small , hence bisulphate ion is very weak acid.

4 0
3 years ago
Is water wet? or is it just an experience?
polet [3.4K]
WATER is wet to make it a more marketable commodity
7 0
3 years ago
In step 2, of the experiment, the procedure uses 3.0M NaOH. However, the student notices that the only solution of NaOH is conce
Luda [366]

Answer:

We need 78.9 mL of the 19.0 M NaOH solution

Explanation:

Step 1: Data given

Molarity of the original NaOH solution = 19.0 M

Molarity of the NaOH solution we want to prepare = 3.0 M

Volume of the NaOH solution we want to prepare = 500 mL = 0.500 L

Step 2: Calculate volume of the 19.0 M NaOH solution needed

C1*V1 = C2*V2

⇒with C1 = the concentration of the original NaOH solution = 19.0 M

⇒with V1 = the volume of the original NaOH solution = TO BE DETERMINED

⇒with C2 = the concentration of the NaOH solution we want to prepare = 3.0 M

⇒with V2 = the volume  of the NaOH solution we want to prepare = 500 mL = 0.500 L

19.0 M * V2 = 3.0 M * 0.500 L

V2 = (3.0 M * 0.500L) / 19.0 M

V2 = 0.0789 L

We need 0.0789 L

This is 0.0789 * 10^3 mL = 78.9 mL

We need 78.9 mL of the 19.0 M NaOH solution

8 0
3 years ago
Other questions:
  • ANALOGY: Evaporates are to chemical sedimentary as dead fish are to clastic sedimentary.
    15·1 answer
  • What type of protein penetrates to the interior of the plasma membrane but does not extend all the way through it?
    6·2 answers
  • Uranium-238 decays very slowly.its half-life is 4.47 billion years.
    7·2 answers
  • Jenna built the electrical circuit seen here. What would happen to the electrical energy if Jenna removed one of the clips on th
    7·1 answer
  • Categorize each hydrocarbon as being saturated or unsaturated.
    15·1 answer
  • Atoms contain ______________ with a positive charge, ___________ with a neutral charge, and ___________ with a negative charge.
    5·1 answer
  • HELP URGENT!
    12·2 answers
  • Hlo good evening everyone​
    15·2 answers
  • When phosphorus forms an ion, it will have the same electron configuration as ?
    8·1 answer
  • Question 1: Is change in atmospheric CO₂ levels likely to impact marine life?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!