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
valkas [14]
2 years ago
5

What would happen if HF were added to water?

Chemistry
1 answer:
iren [92.7K]2 years ago
5 0

Answer:

b pero di Ko sure ahhahhahhhhahahah

You might be interested in
An iron block of mass 18 kg is heated from 285 K to 318 K. If 267.3 kJ is required, what is the specific heat of iron? A. 450.00
valkas [14]

Answer:

  • <u>Option A. 450.00</u>

Explanation:

<u>1) Data:</u>

a) m = 18 kg

b) T₁ = 285 K

c) T₂ = 318 K

d) Q = 267.3 kJ

e) S = ?

<u>2) Principles and equations</u>

The specific heat of a substance is the amount of heat energy absorbed to increase the temperature of certain amount (gram, kg, or moles, depending on the definition or units) of the substance in 1 ° C or 1 K.

The mathematical relation between the specific heat and the heat energy absorbed is:

  • Q = m × S × ΔT

Where,

  • Q is the heat absorbed,
  • S is the specific heat, and
  • ΔT is the temperature increase (T₂ - T₁)

<u>3) Solution:</u>

<u>a) Substitute the data into the equation:</u>

  • 267.3 kJ = 18 kg × S × (318 K - 285 K)

<u>b) Solve for S and compute:</u>

  • S = 267.3 kJ / (18 kg × 33 K) = 0.45 kJ / (Kg . K)

The options have not units, but I notice that the first answer is 1,000 times the answer I obtained, so I will make a conversion of units.

<u>c) Convert to J /( kg . k):</u>

  • 0.45 kJ / (Kg . K) × 1,000 J / kJ = 450 J / (kg . K)

Now we can see that the option A is is the answer, assuming the units.

6 0
3 years ago
Iridium has two naturally occurring isotopes, Iridium-191 and Iridium-193. If the average atomic mass of orodum s 192.217, what
Lina20 [59]

Answer:

The percent isotopic abundance of Ir-193 is 60.85 %

The percent isotopic abundance of Ir-191 is 39.15 %

Explanation:

we know there are two naturally occurring isotopes of iridium, Ir-191 and Ir-193

First of all we will set the fraction for both isotopes

X for the isotopes having mass 193

1-x for isotopes having mass 191

The average atomic mass is 192.217

we will use the following equation,

193x + 191(1-x) = 192.217

193x + 191 - 191x = 192.217

193x- 191x = 192.217 - 191

2x = 1.217

x= 1.217/2

x= 0.6085

0.6085 × 100 = 60.85 %

60.85% is abundance of Ir-193 because we solve the fraction x.

now we will calculate the abundance of Ir-191.

(1-x)

1-0.6085 =0.3915

0.3915× 100= 39.15 %

6 0
2 years ago
What is the missing part of the equation below?
Illusion [34]
 
<span>A. Missing part is ⁴He₂

You can also calculate it by adding/subtracting for atomic mass & atomic numbers

Hope this helps!
</span>
3 0
3 years ago
Read 2 more answers
QUESTION 1
Svetlanka [38]

Answer:

C

Explanation:

Because nothing is left at the end of the reaction.

3 0
3 years ago
2NO(g) + O2 (g) --&gt; 2NO2
Lorico [155]
Take 46g / 46 g/mol = 1 mol NO2 produced
1 mol * 1/2 = 0.5 mol O2 needed  (1/2 ratio between NO2 and O2)
4 0
2 years ago
Other questions:
  • PLEASE HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
    8·1 answer
  • Can someone please help me with this question? I don't understand it
    9·2 answers
  • In the laboratory a general chemistry student finds that when 2.84 g of KClO4(s) are dissolved in 107.70 g of water, the tempera
    11·1 answer
  • Which statement best describes saturation?
    7·2 answers
  • What is the percent yield of the purification system
    15·1 answer
  • 1. If 500 ML of a 3 L sample of 0.20 M sodium chloride solution is spilled, what is the concentration of the remaining solution?
    9·1 answer
  • 10 points<br><br> How many total atoms are in 3(NH4)2S
    12·1 answer
  • 50POINTS!
    11·2 answers
  • Explain why ionic compounds are formed when a metal bonds with a nonmetal, but covalent compounds are formed when two nonmetals
    12·2 answers
  • Which of the following metals will liberate hydrogen from dilute HCL? A. Ag B.Au C.Hg D.Sn​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!