French College

An element has two stable isotopes. One has a mass of 6.015 amu and is 7.59 abundant. The second has a mass of 7.016 amu and is 92.41 abundant what is the average mass of the element.
What is the average atomic mass of the element

Answers

Answer 1
For isotope 1 (lithium-6), atomic mass =
6.015
×
7.59
/
100
=
0.4565385
6.015×7.59/100=0.4565385
For lithium-7, atomic mass
=
7.016
×
92.41
/
100
=
6.4834856
=7.016×92.41/100=6.4834856
Average atomic mass of lithium
=
0.4565385
+
6.4834856
=
6.9400241
a
m
u
=0.4565385+6.4834856=6.9400241amu

Related Questions

Why was the presidency a divisive issue and how was it resolved?

Answers

Answer:

the answer is coming

so the answer is go ask ur french teacher

The major debates were over representation in Congress, the powers of the president, how to elect the president (Electoral College), slave trade, and a bill of rights.

The compromise was to have one house of Congress (the House of Representatives) base its representation on population (with each state having at least one representative) and for each state to have two senators in other house (the Senate) regardless of population. This compromise has worked for more than 200 years.

Which of the following sentences most accurately describes the picture
below?
PAUL
A. Paul est très petit.
OB. Paul n'est vraiment pas grand.
C. Paul est vraiment très petit.
D. Paul est vraiment très grand.

Answers

ANSWER


The answer is c Paul est vraiment très petit

Can you help me completing this sentences?

1. Nous … toujours raison
2.Ma copine … douze ans
3. il …besoin de souliers
4. ……-vous soif? voici de l’eau
5. Elles ….. faim. Alors, elles vont au restaurant.
6. …..-tu froid? mets un chandail
7.Mes sœurs………peur des araignées
8. La réponse n’est pas correcte. Tu ………. tort
9. Nous allons au lit parce que nous…….sommeil

Answers

Answer:  Of course. :)

1. Avons

2. Avez

3. Ont

4. Avez

5. Ont

6. As

7. Ont

8. As

9. Avons

Explanation:

Bonjour,

1. Nous  avons … toujours raison

2.Ma copine …a douze ans

3. il a…besoin de souliers

4. …Avez…-vous soif? voici de l’eau

5. Elles ont….. faim. Alors, elles vont au restaurant.

6. As…..-tu froid? mets un chandail

7.Mes sœurs…ont……peur des araignées

8. La réponse n’est pas correcte. Tu ……as…. tort

9. Nous allons au lit parce que nous…avons…sommeil.

Présent simple

j'ai

tu as

il/elle/on a

nous avons

vous avez

ils/elles ont

5 - ComplétezDrop down Activity
3 ATTEMPTS LEFT
DUE September 23rd 11:59 PM
InstructionsComplete this conversation by choosing the most appropriate word or expression from the list.
Questions
FRANCK J'adore la (1)
tarte
que tu as préparée. Qu'est-ce que tu utilises?

MARINA De la laitue, une (2)
poires
et des (3)
haricots
de Paris.

FRANCK Vraiment? Et tu n'utilises pas de (4)

rouges?

MARINA Non, mais tu peux ajouter () du (5)

si tu aimes le poisson. Dis, qu'est-ce que tu vas (6)

pour la fête de la semaine prochaine?

FRANCK Je pensais servir des (7)

pour commencer et puis, comme viande du (8)

avec des (9)

verts. En dessert, je pensais à une (10)

aux (11)

.

MARINA Mmm! Ça a l'air vraiment délicieux. Je vais aller au (12)

et acheter quelque chose à apporter.

FRANCK Merci, c'est gentil.

Answers

Answer:

I can't read ur questions pls add question question alone and I will answer

Explanation:

that's most likely unreadable .. , Pls add if it's a grammar or comprehension

Ask the question that corresponds to each answer.

Use est-ce que/qu' and inversion for each item.

Modèle: Nous habitons sur le campus.

Est-ce que vous habitez sur le campus?
Habitez-vous sur le campus?

1. Il mange au resto U.

2. J'oublie les examens.

3. François déteste les maths.

4. Nous adorons voyager.

5. Les cours ne commencent pas demain.

6. Les étudiantes arrivent rn classe.

Answers

Answer:

Les cours ne commencent pas demain

Bonjour,

1. Il mange au resto U.

Où mange-t-il?

2. J'oublie les examens.
Qu'as-tu oublié?

3. François déteste les maths.

Que déteste François?

4. Nous adorons voyager.

Qu'est-ce que vous adorez?

5. Les cours ne commencent pas demain.

Est-ce que les cours commencent demain?

6. Les étudiantes arrivent en classe.

Qui arrive en classe?

Indiquez si les mots en gras sont des adjectifs, puis justifiez vos réponses. a) Mes amis m'ont aidée à déplacer ce meuble encombrant b) Elodie surveillait son frère sautant sur les rochers. c) Plusieurs personnes de cette localité ont aperçu un curieux objet volant. d) J'observais ce jeune enfant trottinant sur la plage. e) Des mouettes se posent près de nous, attendant les miettes de notre repas.​

Answers

Answer:

mes amis m ont aidée à déplacer ce meuble encombrant

Explanation:

j observais ce jeune enfant trottinant sur la plage

Bonjour,

adjectifs:

encombrant

curieux

volant

On peut les mettre au féminin:

encombrante

curieuse

volante

driving during restricted hours

Answers

conduite pendant les heures restreintes

Answer:

That's against the rules.

Explanation:

My school is called YMCA institute, it's located in wandegeya Kampala. It has so many students and lecturers. It offers alot of courses.
The lectures starts at 1pm and ends at 5:30pm.
I go at school at 10am and go to the library for some research.Then at 1pm I go for lectures which ends at 5:30pm. After my lectures I go for discussion with my friends until 6:30pm. And later I go back home. I like everything about my school and I love it.

Answers

Answer:

See in the explanation space for a translation (I'm assuming you want a translation).

Explanation:

Mon école s'appelle l'institut YMCA, elle est située à wandegeya Kampala. Il y a tellement d'étudiants et de professeurs. Il propose de nombreux cours.

Les conférences commencent à 13h et se terminent à 17h30.

Je vais à l'école à 10h et je vais à la bibliothèque pour faire des recherches. Puis à 13h je vais aux cours qui se terminent à 17h30. Après mes cours, je vais discuter avec mes amis jusqu'à 18h30. Et plus tard je rentre chez moi. J'aime tout dans mon école et je l'aime.

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