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
ella [17]
2 years ago
14

Can someone help me here please i need this :(​

Chemistry
1 answer:
podryga [215]2 years ago
7 0
Start by adding the numbers then divide
You might be interested in
If there is a 2 kg ball with the same kinetic energy which one will be moving faster
Andrew [12]

Answer:

If you double the mass of an object, you double the kinetic energy. If you double the speed of an object, the kinetic energy increases by four times. The word "kinetic" comes from the Greek word "kinesis" which means motion. Kinetic energy can be passed from one object to another in the form of a collision.

Explanation:

6 0
3 years ago
What mass of glucose would you need (in g) to have 0.8 mol, given that the molar mass of glucose is 180 g mol-1?
Verizon [17]
<h3>Answer: 144 g</h3>

Explanation:

  Mass of glucose = moles × molar mass

∴ Mass of glucose = 0.8 mol × 180 g mol⁻¹

                               =  144 g

∴ the mass of glucose you need to have 0.8 mol of glucose = 144 g

5 0
2 years ago
a 160 milligram sample of a radioactive isotope decays to 10 kilograms in 12 years. what is the half life of this element
Shkiper50 [21]

Answer:

3 years

Explanation:

Given data:

Initial amount of sample = 160 Kg

Amount left after 12 years = 10 Kg

Half life = ?

Solution:

at time zero = 160 Kg

1st half life = 160/2 = 80 kg

2nd half life = 80/2 = 40 kg

3rd half life = 40 / 2 = 20 kg

4th half life = 20 / 2 = 10 kg

Half life:

HL = elapsed time / half life

12 years / 4 = 3 years

8 0
3 years ago
-The female part of a flower
cluponka [151]
Stamens; they’re made up of the anther where it collects pollen and nutrients
7 0
3 years ago
Which statement best describes the model that shows a compound?
VashaNatasha [74]
B is the.answer for this problem
5 0
3 years ago
Read 2 more answers
Other questions:
  • In Males which of the following organ performs a dual function of ejaculation of sperm and voiding of urine
    13·2 answers
  • How many moles of carbon are in 7.87x10^7
    6·1 answer
  • Carbon disulfide is an important industrial solvent. It is prepared by the reaction of coke with sulfur dioxide. 5 C (s) + 2 SO2
    7·1 answer
  • Identify the type of reaction:
    6·1 answer
  • We describe the regeneration of the action potential down the membrane of the axon of the neuron as _______.
    11·1 answer
  • Type the correct answer in the box. Express your answer to two significant figures. An industrial vat contains 650 grams of soli
    13·1 answer
  • An engineer chooses to use bamboo as a building material because it grows
    15·2 answers
  • What is single and double displacement reaction?
    10·1 answer
  • A mutation can be defined as a change in an organism's
    15·1 answer
  • the roof of a building is 0.2km^2. during a rainstorm, 5.5 cm of rain was measured to be sitting on the roof. what is the mass i
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!