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
seraphim [82]
2 years ago
6

What does the number 7 mean in the following example-73Li?

Chemistry
1 answer:
Pavlova-9 [17]2 years ago
4 0

Answer:

7 is the mass number of li and 3 is the atomic number

a 3

b 7

c 3

d 4

You might be interested in
Concerning Boyle's Law, if you had a gas at a pressure of 101 kPa and decreased the volume of the container holding the gas to o
Viefleur [7K]

Answer:

P_2=404 kPa

Explanation:

Hello,

In this case, the Boyle's is mathematically defined via:

P_1V_1=P_2V_2

Which stands for an inversely proportional relationship between volume and pressure, it means the higher the volume the lower the pressure and vice versa. In such a way, since the volume is decreased to one quarter, we can write:

V_2=\frac{1}{4} V_1

We can compute the new pressure:

P_2=\frac{P_1V_1}{V_2} =\frac{P_1V_1}{\frac{1}{4} V_1} =\frac{101kPa*V_1}{\frac{1}{4} V_1} \\\\P_2=4*101kPa\\\\\\P_2=404 kPa

Which means the pressure is increased by a factor of four.

Regards.

7 0
3 years ago
Quien inventó la electricidad
makvit [3.9K]
Can you put this in english

6 0
3 years ago
1. What are commonly called as "shooting stars"?
nydimaria [60]

Answer:

B

B

A

C

D

Explanation:

I think dont take my word for though

6 0
3 years ago
Read 2 more answers
Give one example of fast erosion and one example of slow erosion. Use complete sentences.
topjm [15]
An example of erosion is the Grand Canyon, which was worn away over time by the Colorado river.
3 0
3 years ago
Read 2 more answers
Chem !! 15 pts + brainliest
evablogger [386]

Answer:

V = 80.65L

Explanation:

Volume = ?

Number of moles n = 5 mol

Temperature (T) = 393.15K

Pressure = 1520mmHg

Ideal gas constant (R) = 62.363mmHg.L/mol.K

According to ideal gas law,

PV = nRT

P = pressure of the ideal gas

V = volume the gas occupies

n = number of moles of the gas

R = ideal gas constant (note this can varies depending on the unit of your variables)

T = temperature of the ideal gas

PV = nRT

Solve for V,

V = nRT / P

V = (5 * 62.363 * 393.15) / 1520

V = 80.65L

The volume the gas occupies is 80.65L

3 0
3 years ago
Other questions:
  • How could maglev trains help improve people's lives? Write three paragraphs. First summarize the author's criticism of conventio
    9·1 answer
  • How many metals are on the periodic table?
    7·2 answers
  • The ___________________ in the mouth secrete enzymes which help prepare the food for digestion in the stomach.
    8·2 answers
  • if gas is sealed container has a pressure of 50 kpa at 300k, what will the pressure be if the temperature rises to 360 k
    14·1 answer
  • Which substance is classified as an arrhenius base
    8·2 answers
  • Palmitic acid, derived from palm oil, is one of the most common fatty acids found in butter, cheese, milk, and meat.
    8·1 answer
  • Gravity increases when:
    7·1 answer
  • Is this a correct electron config?
    6·1 answer
  • What is the percent composition of phosphoric acid (H3PO4)
    5·1 answer
  • Which equation describes the process of photosynthesis?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!