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
skelet666 [1.2K]
2 years ago
14

Helppppppppppppppppppp

Chemistry
1 answer:
Lisa [10]2 years ago
3 0

Answer:

I I'm pretty sure it's B I hope this helps

You might be interested in
QUICK TRUE OR FALSE QUESTION HELP PLEASE.
Veseljchak [2.6K]
The answer is 4H2O good luck 
7 0
3 years ago
3.
KatRina [158]

Answer A,They can form a triple covalent bond.

Explanation:

7 0
3 years ago
How, exactly, would altering the pH in a solution affect a living organism and how do organisms prevent large pH fluctuations?
oksano4ka [1.4K]

Answer:

pH solutions cause the water to become more basic or more acidic therefore would force the organisms to adapt to their new situations

4 0
3 years ago
The half-life of plutonium-239 is 24300. If a nuclear bomb released 8kg of this isotope, how many years would pass before the am
Aneli [31]

Answer:

= 72900 years

Explanation:

  • The half-life is the time taken by a radioactive material to decay by half the original amount.
  • The half-life of plutonium-239 is 24300 years which means it takes 24300 years to decay by half the original amount.

To calculate the time taken for a mass of 8 kg to decay to 1 kg we use;

New mass = Original mass x (1/2) ^n, where n is the number of half-lives

Therefore;

1 kg = 8 kg × (1/2)^n

1/8 = (1/2)^n

solving for n;

n =3

Therefore;

Time = 3 × 24300 years

          = 72900 years

It will, therefore, take 72900 years for 8 kg of plutonium-239 to decay to 1 kg.

3 0
3 years ago
The air in a living room has a mass of 60 Kg and a specific heat of 1,020 J/kg°C. What is the change in thermal energy of the ai
arlik [135]

Answer:

Q = 306 kJ

Explanation:

Given that,

Mass, m = 60 kg

Specific heat, c = 1020 J/kg°C

The temperature changes from 20°C to 25°C.

Let Q be the change in thermal energy. The formula for the heat released is given by :

Q=mc\Delta T

Put all the values,

Q=60\times 1020\times (25-20)\\\\Q=306000\ J\\\\or\\\\Q=306\ kJ

So, 306 kJ is the change in thermal energy.

4 0
3 years ago
Other questions:
  • What problem does the hudson river still face
    11·2 answers
  • Na2SO4 (aq) + AgNO3 (aq) yields what when balanced?
    9·1 answer
  • The products of a combustion reaction do NOT include ____. (1 point) water carbon dioxide carbon monoxide hydrogen The products
    10·2 answers
  • A hot-water stream at 70°C enters an adiabatic mixing chamber with a mass flow rate of 3.6 kg/s, where it is mixed with a stream
    12·1 answer
  • Carbon dioxide is a nonpolar molecule true of false
    15·1 answer
  • A solution is formed by mixing 15.2 g KOH into
    13·1 answer
  • Use the masses of the elements below to calculate the mass of 8.70 moles of H3M (the number at the bottom of
    7·1 answer
  • Which best describes a hydrate?
    8·2 answers
  • Why is it necessary to standardize a secondary standard before use?<br>​
    13·1 answer
  • Find the molarity of 0.50 l solution containing 9.0 g nacl
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!