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
pochemuha
4 years ago
13

How many electrons does the isotope oxygen-18 have? 6 8 10 18

Chemistry
1 answer:
Alexxandr [17]4 years ago
7 0
It has 8 electrons I the answer
You might be interested in
If the total mass of the products of a reaction is 90 gram, what was the total mass of the reactants
Marizza181 [45]
90 grams due to laws of conservation of mass. Output mass = input mass. Mass can never be created or destroyed.

4 0
3 years ago
a chemist dissolved an 11.9-g sample of koh in 100.0 grams of water in a coffee cup calorimeter. when she did so, the water temp
Snowcat [4.5K]

The heat of solution is -51.8 kJ/mol

<h3>What is the heat of solution?</h3>

We know that in a calorimeter, there is no loss or gain of energy. It is a good example of a closed system.

Number of moles of KOH =  11.9-g/56 g/mol = 0.21 moles

Temperature rise = 26.0 ∘c

Mass of the water = 100.0 grams

Heat capacity =  4.184 j/g⋅°c

Then;

ΔH = mcθ

ΔH = 100g * 4.184 j/g⋅°c * 26.0 ∘c = 10.88 kJ

Heat of solution = -(10.88 kJ/ 0.21 moles) = -51.8 kJ/mol

Learn more about heat of solution:brainly.com/question/24243878

#SPJ1

4 0
2 years ago
Someone please help me real quick pls :(
Genrish500 [490]
Anti-acids because they contain Alkaline ion that chemically neutralizes stomach acid
8 0
3 years ago
Activities that shows the nature and goals of anthropology,Sociology and Political Science​
frez [133]

To answer the question effectively, we will talk about the key words in the question.

ANTHROPOLOGY, SOCIOLOGY AND POLITICAL SCIENCE.

ANTHROPOLOGY; This is the study of human kinds in all times and places,it also entails humanistic study which includes our prehistoric origins and contemporary human diversity as well as topics like social change,globalization,human origin and the world history.

The activities that shows the nature and goals of anthropology includes;

- Looking at ones own culture in a more objective way like an outsider.

- Discovering the things that make people more different from one another.

- Producing new theories and knowledge about human home and their behaviors.

- Discovering/finding out what all people have in common.

There are four fields of anthropology; Linguistic anthropology, Biological anthropology, Archeology and cultural anthropology.

SOCIOLOGY; This is the scientific study of human civilization.

It is systemic and studies of groups and societies that people build

and the effect these have on their behavior.

Sociology greatly focuses on various social connections,

structures, organizations, processes and institutions.

The activities that show the goals and nature of sociology includes;

- Broadening our familiarity on facts about sociology.

- Critically studying the nature of humanity.

- Exposing our minds to the diverse perspectives on attaining the truth.

- Obtaining possible theories about the society.

- Understanding and appreciating that all things in the society are interdependent with each other.

Sociology brings together inputs that are composed of frequent forms and manners,they include; view points, consolidated values, attitudes and the norms of social institutions.

The different branches of sociology are; social psychology,social organisation, applied sociology, population studies, sociological theory and research,human ecology,social change.

POLITICAL SCIENCE; This is a discipline in academics that deals with the study of political processes, institutions, governments and behaviors of people.

It studies the complex behaviors of the people in power, various political actors, such as the government administration, opposition ad the subjects which are the masses.

5 0
3 years ago
Under what circumstances may a health insurer charge a higher premium to a woman with a genetic disposition to breast cancer? a)
wel

Answer:

D

Explanation:

No company is allowed to discriminate.

8 0
2 years ago
Other questions:
  • a chemist encounters an unknown metal. They drop the metal into a graduated cylinder containing water, and find the volume chang
    5·1 answer
  • A mixture containing nitrogen and hydrogen weighs 3.49 g and occupies a volume of 7.45 L at 305 K and 1.03 atm. Calculate the ma
    6·1 answer
  • Why is water not a good extraction solvent for trimyristin?
    5·1 answer
  • How do heater meals work?
    10·1 answer
  • ! WILL GIVE BRAINLIST !
    13·1 answer
  • Which molecular formula is also an empirical formula? <br> 1)C6h6<br> 2)h2o2<br> 3) n2h4<br> 4) n2o5
    13·2 answers
  • What are the names of the products in the chemical equation shown below
    9·2 answers
  • A container has the dimensions of 10 cm x 50 mm x 0.2 m. It is filled completely with 5.0 kg of a powdery ore. What is the densi
    14·1 answer
  • When did jellyfish, bacteria and sponges thrive?
    10·1 answer
  • Both of janies parents have dark hair. how likely is janie to have blonde hair? ​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!