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
Finger [1]
3 years ago
10

CHEMISTRY HELP !?????

Chemistry
1 answer:
zheka24 [161]3 years ago
8 0

3. Plasma

- indefinite shape & volume

- affected by magnetic and electric field

- drift and flow freely


4. Liquids have fixed volume meaning packed tighter together as gases do not have fixed shape or volume .

D would be correct

You might be interested in
If eggs are so fragile, how do they actually protect the growing bird?​
Step2247 [10]

Although birds' eggs appear to be fragile, they are in fact extremely robust. The oval shape applies the same rules of engineering as an arched bridge; the convex surface can withstand considerable pressure without breaking.

6 0
3 years ago
How many moles of oxygen are needed to react with 100.0 grams of aluminum?
Tasya [4]

Answer:

2

Explanation:

8 0
3 years ago
How are Ionic and Covalent Bonds are formed with examples ?
Helga [31]

Answer:Comparison of Ionic and Covalent Bonds

In an ionic bond, the atoms are bound together by the electrostatic forces in the attraction between ions of opposite charge. ... For example, sodium (Na), a metal, and chloride (Cl), a nonmetal, form an ionic bond to make NaCl. In a covalent bond, the atoms bond by sharing electrons.

     

pls   add  Brainliest

7 0
2 years ago
How much heat is required to warm 1.50L of water from 25.0C to 100.0C? (Assume a density of 1.0g/mL for the water.)
Masteriza [31]

<u>Answer:</u> The amount of heat required to warm given amount of water is 470.9 kJ

<u>Explanation:</u>

To calculate the mass of water, we use the equation:

\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}

Density of water = 1 g/mL

Volume of water = 1.50 L = 1500 mL    (Conversion factor:  1 L = 1000 mL)

Putting values in above equation, we get:

1g/mL=\frac{\text{Mass of water}}{1500mL}\\\\\text{Mass of water}=(1g/mL\times 1500mL)=1500g

To calculate the heat absorbed by the water, we use the equation:

q=mc\Delta T

where,

q = heat absorbed

m = mass of water = 1500 g

c = heat capacity of water = 4.186 J/g°C

\Delta T = change in temperature = T_2-T_1=(100-25)^oC=75^oC

Putting values in above equation, we get:

q=1500g\times 4.186J/g^oC\times 75^oC=470925J=470.9kJ

Hence, the amount of heat required to warm given amount of water is 470.9 kJ

6 0
3 years ago
What is the identity of the element, and how many neutrons does it have? An elements most stable ion forms an ionic compound wit
Pani-rosa [81]

Answer:

B. CA, 14

Explanation:

Atoms of elements contain small particles known as electrons, neutrons, and protons. The nucleus of an atom is made up of neutrons and protons which are at the center of the atom. Electrons on the other hand surrounds the nucleus. Electron has negative charge while proton has a positive charge. The number of neutrons is equivalent to the number of protons . In addition, the number of protons is equal to mass number minus the number of electrons.

For the compound XCl_{2}, it can be broken down into X^{2+} and 2Cl^{-}. Its ion has a mass of 34 and 18 electrons which means it has already lost 2 electrons.

Therefore:

For the given element, the number of electrons is 18+2 = 20 electrons.

The number of protons = 34 - 20 = 14.

And the number of neutrons is 14.

Only option B has the correct answer.

6 0
3 years ago
Other questions:
  • Which small group format generally selects members because they are experts on the issue being discussed?
    7·1 answer
  • Is water wet? My friends are debating.​
    5·2 answers
  • The illuminance on a surface is 6 lux and the surface is 4 meters from the light source. What is the intensity of the source?
    7·2 answers
  • How many chloride ions are in 1.5 moles of aluminum chloride?
    13·1 answer
  • Please please please help please
    15·1 answer
  • Help pls thnk you!!!!
    15·1 answer
  • 2C2H2 + 502 = 4CO2 + 2H20<br>when 20000g of 2C2H2 + 5O2 = how much 4CO2?​
    7·1 answer
  • Why are three-dimensional models useful for understanding the lunar phases?
    11·1 answer
  • Convection currents are caused by...
    5·1 answer
  • For the balanced equation shown below, how many moles of CO2 will react with 0.708 moles of H2O.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!