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
dexar [7]
3 years ago
11

Which describes how technology has changed society?

Chemistry
1 answer:
Anton [14]3 years ago
7 0

Answer:

B. People live longer than they used to

Explanation:

None of the other answers are correct.

You might be interested in
Why would someone need to find the relative density of an object?
Ede4ka [16]

Answer:

The relative densities of an object and the liquid it is placed in determine whether that object will sink or float. An object that has a higher density than the liquid it's in will sink. An object that has a lower density than the liquid it's in will float.

Explanation:

Hope it helps!

8 0
2 years ago
You have 41.6 g of O2 gas in a container with twice the volume as one with CO2 gas in another container. The pressure and temper
prisoha [69]

Answer:

The mass of carbon dioxide is 28.6 grams

Explanation:

<u>Step 1:</u> Data given

Mass of O2 = 41.6 grams

Volume of the O2 container = 2V

Volume of the CO2 container = V

Pressure and temperature are the same

<u><em>Step 2:</em></u> Ideal gas law

The ideal gas law = p*V=nRT

For O2: p*2V = n(O2)*R*T

For CO2: p*V = n(CO2)*R*T

n(O2)*R*T / P*2V = n(CO2)*R*T / P*V

Since P, R and T are contstant, we can simplify this to:

n(O2)/2 = n(CO2)

<u>Step 3:</u>  Calculate moles of O2

Moles O2 = mass O2/ Molar mass O2

Moles O2 = 41.6 grams / 32 g/mol

Moles O2 = 1.3 mol O2

The number of moles CO2 = 0.65 mol

Mass of CO2 = Moles CO2 * Molar Mass CO2

Mass of CO2 = 0.65 mol * 44.01 g/mol

Mass of CO2 = 28.6 grams

The mass of carbon dioxide is 28.6 grams

5 0
4 years ago
How does the amount of water in a glass affect the pitch of the sound it produces?
Mrac [35]

Answer:

The glasses with different amounts of water make different sounds. ... This is because the empty glass only has air around it, so the glass vibrates quickly when it is hit, causing the high pitch sound. The glass full of water causes the glass to vibrate slower, and the sound you hear is at a lower pitch.

Explanation:

7 0
3 years ago
Read 2 more answers
What is the answer I need help bad
Thepotemich [5.8K]
Rock formed by heat and pressure
8 0
3 years ago
What is the total amount of kinetic and potential energy of a substance?
Serhud [2]

Answer:

I <em><u>THINK mechanical energy</u></em>

7 0
3 years ago
Other questions:
  • How does the electron configuration of elements within the same group compare? (A.) They all have their valence electrons in the
    14·1 answer
  • When aqueous solutions of HCl and NaOH are mixed together in a calorimeter, the temperature of the solution increases. The react
    10·1 answer
  • Why then is a diamond extremely hard and sparkly and Graphite is soft and gray and dull ?
    6·1 answer
  • Why do covalent compounds tend to have lower melting points than ionic compounds?
    5·2 answers
  • PLEASE HELP !!
    12·1 answer
  • Use the reaction below to balance the nuclear reaction equation.
    8·2 answers
  • The equation 2NaNO3 + CaCl2 - 2NaCl + Ca(NO3)2 is balanced. How many atoms of sodium (Na) are there on either side of the equati
    11·2 answers
  • which of the following illustrates a reversible change a cooking corn be rusting c frying egg and the boiling water​
    12·1 answer
  • C2H6O2 is infinitely miscible(soluble) in water. Ethylene glycol is a nonelectrolyte that is used as antifreeze. What is the low
    11·1 answer
  • Generally speaking, which group would have the lowest electronegativity values in a period?.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!