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
Marrrta [24]
2 years ago
15

HELP HURRY‼️‼️‼️ FAST

Chemistry
2 answers:
lesya692 [45]2 years ago
8 0

I believe the answer is D

barxatty [35]2 years ago
5 0
I think its D is the correct one
You might be interested in
A gas has a volume of 340.0 mL at 45.90 oC. What is the new temperature of the gas, in Kelvin, if the volume increased to 550.0
d1i1m1o1n [39]

Answer:

Solution for A gas has a volume of 340.0 mL at 45.90 degree celsius. What is the new temperature of the gas, in kelvin, if the volume increased to 550.0 mL.

Missing: oC. ‎| Must include: oC.

Explanation:

6 0
3 years ago
What is the energy of a photon that emits a light of frequency 6.42 x 1014 Hz?<br><br>​
svetlana [45]

Answer:

Option B. 4.25×10¯¹⁹ J

Explanation:

From the question given above, the following data were obtained:

Frequency (f) = 6.42×10¹⁴ Hz

Energy (E) =?

Energy and frequency are related by the following equation:

Energy (E) = Planck's constant (h) × frequency (f)

E = hf

With the above formula, we can obtain the energy of the photon as follow:

Frequency (f) = 6.42×10¹⁴ Hz

Planck's constant (h) = 6.63×10¯³⁴ Js

Energy (E) =?

E = hf

E = 6.63×10¯³⁴ × 6.42×10¹⁴

E = 4.25×10¯¹⁹ J

Thus, the energy of the photon is 4.25×10¯¹⁹ J

3 0
3 years ago
Read 2 more answers
It asks for the percentage but I’m not sure how to find it when the answer is 67.1%
Vlada [557]
Since a percentage is out of 100, do the % / 100


Divide the percent by 100
4 0
3 years ago
How many moles are in 75 grams in aluminum
Anvisha [2.4K]

You can view more details on each measurement unit: molecular weight of Aluminium or grams The molecular formula for Aluminium is Al. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Aluminium, or 26.981538 grams.

3 0
3 years ago
If 35.4 liters of hydrogen gas are used, how many liters of nitrogen gas will be needed for the above reaction at STP?
CaHeK987 [17]

Answer:

ujdbdbfbf fbFbsygtsjysnsgndhngsnsgnafbfa

5 0
2 years ago
Other questions:
  • At –45oC, 71 g of fluorine gas take up 6843 mL of space. What is the pressure of the gas, in kPa?
    6·1 answer
  • Express the following numbers as standard form:<br> a) 1.52 x 10^-2<br> b) 7.78 x 10^-8
    5·1 answer
  • A student collected a 40.0 mL sample of H_{2} 2 ​ gas at a temperature of 20.0°C and pressure of 720.0 mmHg. The next day the te
    12·1 answer
  • Which formula is an empirical formula?
    15·2 answers
  • Effect of temperature on surface tension.
    9·1 answer
  • What does the word homogenous mean?
    6·1 answer
  • How do you know a physical change has occurred when evaporating water produces gaseous water?
    9·1 answer
  • A reaction at evolves of dinitrogen monoxide gas. Calculate the volume of dinitrogen monoxide gas that is collected. You can ass
    12·1 answer
  • SUMMARY: Write a 3-4 sentence summary about the Periodic Table.
    11·1 answer
  • The average kinetic energy of a sample of water molecules is –
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!