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
kirill [66]
3 years ago
7

How many kilograms are in 125 pounds

Chemistry
1 answer:
zhuklara [117]3 years ago
3 0

Answer:

125 pounds = 56.6990463 kilograms

Explanation:

You might be interested in
Pls help!<br> Is volume equal to mass over density?
olganol [36]

density = mass/volume

volume= mass/density

Yes, you're correct.

5 0
2 years ago
Read 2 more answers
Suppose you find a rock that contains some potassium-40 (half-life of 1.3 billion years). you measure the amount and determine t
Alborosie
Equation for Half life :
A = a(0.5)^(t/h)
A is current amount, "a" is initial amount, h is halflife, t is time

5 = 40(0.5)^(t/1.3x10^9)
5/40 = (0.5)^(t/1.3x10^9)
take the log of both sides , power rule
Log(5/40) = (t/1.3x10^9) * Log(0.5)
(1.3x10^9) * Log(5/40) / Log(0.5) = t
3.9x10^9 years = t

And if you think about what a half life is, the time it take for the amount to reduce to half.
40/2 = 20
20/2 = 10
10/2 = 5
It went through 3 half-lifes
3 * 1.3x10^9 = 3.9x10^9 years

7 0
3 years ago
A scientist has a container with a substance inside. At first, the molecules in the substance move away from each other. Later,
Vera_Pavlovna [14]

Answer:

Base on the properties the substances possess the substance change phase from gas to liquid.

Explanation:

Generally, matter can exist in three phase namely liquid , solid and gas. The scientist has a container with a substance inside.

At first the substance moves away from each other . This means the substance was first in the gas phase . Gas molecules, because of the energy they possess , it can move rapidly and randomly and most at times move away from each other . The gas molecules tends to fill the whole volume of the container and the shape of gases are indefinite.

Later the molecules move around each other. This is a property of a liquid . A substance in liquid phase have the ability to move freely but they stay together because of the force of attraction holding them together . The substance only have the ability to move around each other because the forces holding them together won't allow them to move apart.

Base on the properties the substances possess the substance change phase from gas to liquid.

5 0
3 years ago
Read 2 more answers
A compound needed for photosynthesis​
Pavel [41]

Answer:

Carbon dioxide as well as water are needed for photosynthesis.

Explanation:

8 0
2 years ago
Why aluminium is used to make aeroplanes​
liberstina [14]

Answer:

Aluminum (blended with small quantities of other metals) is used on most types of aircraft because it is lightweight and strong. Aluminum alloys don't corrode as readily as steel. It has also been used for the skin of some high-speed airplanes, because it holds its strength at higher temperatures better than aluminum.

HOPE THIS HELPED!!!!!!!!!XDDD

6 0
3 years ago
Other questions:
  • Zn + 2HCI --&gt; ZnCl2 + H2
    9·1 answer
  • The ionic charge of an element in Group 6A is 2–.<br><br> -True<br><br> -False
    12·1 answer
  • The heat transfer in the picture is most likely:
    8·1 answer
  • What volume will 0.405 g of krypton gas occupy at STP?
    13·2 answers
  • What is the purpose of the catalyst?
    15·1 answer
  • 29.3g CO2 and 20.8g H2O
    9·1 answer
  • If 21.3 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 297 kelvin and 1.40 atmosph
    10·1 answer
  • Why do scientists measure and record the mass of objects rather than their weight?
    9·1 answer
  • when a reactive metal is added to water, bubbles or fizzing can be observed. Explain the appearance of the bubbles​
    10·1 answer
  • In each pair, choose the larger of the indicated quantities or state that the samples are equal:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!