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Anna11 [10]
3 years ago
14

3. After the isotope decays, what is the nucleus called?||

Chemistry
1 answer:
Marat540 [252]3 years ago
7 0

Answer:

Daughter Nucleus

Explanation:

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A student must use 220 mL of hot water in a lab procedure. Calculate the amount of heat required to raise the temperature of 220
Inessa [10]

Answer:

64,433.6 Joules

Explanation:

<u>We are given</u>;

  • Volume of water as 220 mL
  • Initial temperature as 30°C
  • Final temperature as 100°C
  • Specific heat capacity of water as 4.184 J/g°C

We are required to calculate the amount of heat required to raise the temperature.

  • We know that amount of heat is calculated by;

Q = mcΔT , where m is the mass, c is the specific heat, ΔT is the change in temperature.

Density of water is 1 g/mL

Thus, mass of water is 220 g

ΔT = 100°C - 30°C

    = 70°C

Therefore;

Amount of heat, Q = 220g × 4.184 J/g°C × 70°C

                               = 64,433.6 Joules

Thus, the amount of heat required to raise the temperature of water is 64,433.6 Joules

7 0
3 years ago
___________ would albumin expect to dissociate into individual ions and increase the number of osmols/mol in solution.
Lubov Fominskaja [6]

Answer: Check explanation please.

Explanation:

Before diving into the question,let us consider some important facts and definitions.

WHAT IS OSMOLARITY? Osmolarity is the number of OSMOLES of solute per litre of the solution. The unit of osmolary is OSMOLE. Nowadays, osmolarity has become a term used in the past, now osmolarity is called osmotic concentration.

OSMOLARITY can be calculated using; Σ(osmotic coefficient × number of ion × the solute molar concentration).

BACK TO THE QUESTION; ALBUMIN is a PROTEIN. Protein is a large molecule and it contributes an insignificant amount to osmolarity(around 0.6 Mosmole/litre).

Also, if we have the osmotic coefficient to be between zero and one, there is going to be great DISSOCIATION.

6 0
3 years ago
HELP ASAP
evablogger [386]

Answer:

b i think but I'm not 100%

5 0
3 years ago
Read 2 more answers
The phrase "Most ecosystems are solar powered" refers to the fact that most organisms seek sunlight. solar energy is converted t
Savatey [412]

Answer:

The solar energy is converted to chemical energy by the process of photosynthesis - This is the true statement of the given question.

Explanation:

An ecosystem usually refers to the biological community comprising all the types of living species that are continuously interacting with the surrounding environment. Most of these ecosystems are solar-powered, and by this phrase, it means that there occurs the transformation of energy from solar to chemical energy which is taking place due to the process of photosynthesis. Both the terrestrial and the aquatic, are able to carry out this process in the presence of sunlight, water, and CO₂, and in return, it liberates food and oxygen into the ecosystem.

Thus, this statement satisfies the given phrase.

All other options are false as it does not justify the phrase.

5 0
3 years ago
The last electron in an atom of oxygen is added to a ___ orbital.
Aleks [24]

Answer:

A

Explanation:

4 0
3 years ago
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