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
Readme [11.4K]
3 years ago
6

The model of the atom that describes electrons scattered throughout a ball positive charge was proposed by

Chemistry
1 answer:
Novay_Z [31]3 years ago
8 0
It was proposed by J.J Thompson. 
You might be interested in
If a farmer wants to increase the health of his crops, he could apply a nitrogen-based fertilizer. why is nitrogen important to
Finger [1]
Not only for plants, but also for every organism and every life form nitrogen is important because  it poses as catalyst that supports different is chemical reactions of growth. N is filled with chlorophyll that actually gives you the answer on the question as chlorophyll allow plant to perform photosynthesis by absorbing energy from light that leads to the growth. So, it is important because it provides <span>photosynthesis.</span>
8 0
2 years ago
When you graph an inequality you used a closed dot or a open dot
Naddik [55]
For ≤ and ≥ , use a closed dot to indicate the number itself is part of the solution. For < and >, use an open circle to indicate the number itself is not part of the solution.
4 0
3 years ago
A flask with a volume of 250.0 mL contains air with a density of 1.164 g/L. What is the mass of the air contained in the flask?
satela [25.4K]

Answer:

convert 250.0 mL in Liters :250. 0 / 1000 = 0,25 LDensity = 1.240 g/LMass

Explanation:

6 0
1 year ago
A spectrophotometer measures the transmittance or the absorbance, or both, of a particular wavelength of light after it has pass
Cerrena [4.2K]

Answer:Answer: The step that is NOT necessary to complete before a cuvette is placed into the spectrophotometer is option B (Write, in ink, either sample or blank on the side of the cuvette to keep track of them)

Explanation: spectrophotometer is an instrument used to measure the light intensity absorbed after being passed through a solution. Before the absorbance of the sample solution, a solvent solution called blank is used for the calibration of the machine and this blank solvent is placed in a cuvette. The procedure usually comes first before the main sample is processed. Therefore there is no need to

Write, in ink, either sample or blank on the side of the cuvette to keep track of them. This is so since sample and blank is not absorbed at the same time by the machine.

7 0
3 years ago
Read 2 more answers
PLEASE HELP!!
Andrews [41]
The answer should be B. hope this helped ;)
3 0
2 years ago
Other questions:
  • Consider the reaction between HCl and O2: 4HCl grams + O2 - 2 H2O liquid + 2 Cl2 grams When 63.1 grams of HCl react with 17.2 g
    15·1 answer
  • What do sedimentary rock layers reveal about ancient environments?
    13·1 answer
  • Ammonia, NH3, is a weak base with a Kb value of 3.95×10−5. What is the percent ionization of 0.085 M ammonia?
    9·1 answer
  • Lithium bettery structure<br> and better charge rate
    7·1 answer
  • Enter a net ionic equation for the reaction between nitric acid and calcium hydroxide.
    11·1 answer
  • Describe how you would find out whether copper(ii) oxide was a catalyst for the decomposition of hydrogen peroxide solution. You
    9·1 answer
  • Why is a neutral solution neutral?
    15·2 answers
  • Pls help!!!!
    10·1 answer
  • How many moles of aluminum are in 1.204 x 1023 atoms of aluminum?
    5·2 answers
  • Among the following scenarios, which best demonstrates resilience when confronted with stress?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!