Answer:
mass, space, composition, changes, 5, carbon, carbon, organisms, analytical chemistry, physical chemistry, energy transfer, two
Explanation:
D. Viral disease
Because it’s a virus that spreads around to other people and need a vaccine to combat it
Answer:
Electrical energy (form of kinetic energy)
Explanation:
We are provided with the amount of energy released when one mole of carbon reacts. We mus first convert the given mass of carbon to moles and then compute the energy released for the given amount.
Moles = mass / atomic mass
Moles = 23.5 / 12
Moles = 1.96 moles
One mole releases 394 kJ/mol
1.96 moles will release:
394*1.96
= 772.24
The enthalpy change of the reaction will be -772.24 kJ
Answer: Solid, Liquids, Plasma. Gas.
Explanation:
It retains its shape regardless of the shape of the container----- Solid
Particles move freely but do not separate from neighboring particles---- Liquids
This state, in which the particles are at extremely high temperatures, is rarely found on Earth---- Plasma
It expands to fill the volume of the container.------- Gas
There are four states of matter, of which the common ones are
Gases- whose particles are compressible and takes the shape and volume of its container
, Liquids - whose particles freely slide over each other and assumes the shape of the part of the container which they occupy and
Solids whose particles are rigid and maintain thier fixed volume and shape regardless of the container they are put .
The last one is the Plasma, a rare state of matter not common to earth nwhose particles are so hot that they exist around the sun, stars and outer space.