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
Mars2501 [29]
3 years ago
5

Which is a property that Mendeleev predicted for gallium (Ga)?

Chemistry
2 answers:
kompoz [17]3 years ago
8 0
The correct option is B.
Mendeleev was the one who originated the idea of arranging elements in the periodic table according to their chemical and physical properties. He left spaces in the periodic table and predicted the discovery of those elements that had not been discovered then. One of these elements is Gallium. He predicted that gallium is going to be a metal and he gave the properties that the element will possess. He also predicted that the element gallium will be placed under aluminium in the periodic table. 
notsponge [240]3 years ago
7 0

the correct answer is b it is a metal

You might be interested in
What is the partial pressure of carbon dioxide in a container that contains 3.63 mol of oxygen, 1.49 mol of nitrogen, and 4.49 m
lana66690 [7]

Answer:

Partial pressure of CO₂ is 406.9 mmHg

Explanation:

To solve the question we should apply the concept of the mole fraction.

Mole fraction = Moles of gas / Total moles

We have the total moles of the mixture, if we have the moles for each gas inside. (3.63 moles of O₂, 1.49 moles of N₂ and 4.49 moles of CO₂)

Total moles = 3.63 mol O₂ + 1.49 mol N₂ + 4.49 mol CO₂ = 9.61 moles

To determiine the partial pressure of CO₂ we apply

Mole fraction of CO₂ → mol of CO₂ / Total moles = P. pressure CO₂ / Total P

Partial pressure of CO₂ = (mol of CO₂ / Total moles) . Total pressure

We replace values: (4.49 moles / 9.61 moles) . 871 mmHg = 406.9 mmHg

6 0
3 years ago
Read 2 more answers
What is required for an electron to move between energy levels?
Bingel [31]
It required a fixed finite amount these zones are known as energy levels
4 0
3 years ago
Read 2 more answers
On a cold, winter day, Sheena rubs her hands together to warm them up. How could Sheena actions be used to explain the Law of Co
rosijanka [135]

Answer:

When she rubs her hands together, it causes heat or friction

5 0
3 years ago
A welding torch produces a flame by burning acetylene fuel in the presence of oxygen. the energy released from the acetylene fue
Sveta_85 [38]

A welding torch produces a flame by burning of acetylene fuel then energy released from the acetylene fuel is then used to melt a metal, so transformation of chemical energy into thermal energy takes place.

<h3>What is transfer of energy?</h3>

Energy neither can be produced nor destroyed but it only transfers from one form to other form.

In the question it is given that, burning of acetylene produces energy and this produced energy is a type of chemical energy and then this is used as a thermal energy for the melting of metal.

So conversion of kinetic energy to potential energy, thermal energy to electromagnetic energy and potential energy to chemical is wrong.

Hence transformation of chemical energy into thermal energy takes place.

To know more about transformation of energy, visit the below link:

brainly.com/question/14754310

4 0
1 year ago
Sandra reacts 3.345 g of zinc with hydrochloric acid. She obtained 3.956 g of zinc chloride. Calculate the percent composition o
Elena L [17]

Explanation:

One molecule of the antibiotic known as penicillin G has a mass of ... b) If you isolate 115 g of zinc chloride, what is the percent yield of the metal ... This drives off the volatile hydrochloric acid, but the.

3 0
3 years ago
Other questions:
  • Which description below represents a hydrocarbon?
    11·1 answer
  • At 20.°C, a 1.2-gram sample of Mg ribbon reacts rapidly with 10.0 milliliters of 1.0 M HCl(aq). Which change in conditions would
    8·2 answers
  • Which change would cause an immediate increase in the rate of the forward reaction
    9·1 answer
  • Which of the following is an example of point-source pollution? A. Salt from roads B. Water from a sewage treatment plant C. Fer
    6·1 answer
  • A solution is composed of 85.5 wt% methanol in water. Find the mol fraction of methanol in the solution.
    14·1 answer
  • Suppose that Biuret reagent turns purple when it is added to an unknown substance. What can you conclude about the substance?
    5·1 answer
  • David's body breaks down the sandwich into small enough molecules that can be absorbed through his intestinal lining and then in
    11·2 answers
  • What is the difference between homogeneous mixture and heterogeneous mixture and examples​
    5·1 answer
  • Relate the intermolecular forces in hydrocarbons to their physical properties and uses
    6·1 answer
  • SOMEONE PLZZ help me on this chemistry test I need to pass it to be able to get my grade up :(((
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!