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
SashulF [63]
3 years ago
13

Plz answer fast :) ...................

Chemistry
1 answer:
Alenkasestr [34]3 years ago
6 0

Answer:

helium (c

Explanation:

:)

You might be interested in
Determine the oxidation number for nitrogenin
iris [78.8K]

Answer:

1(a) N = 3

(b) N = 0

(c) N = 5

(d) N = -2

(2) Molecular formula for benzene is C6H6

Explanation:

1(a) N02 1-

N + (2×-2) = -1

N-4 = -1

N = -1+4 = 3

(b) N2

2(N) = 0

N = 0/2 = 0

(c) NO2Cl

N + ( 2×-2) + (-1) = 0

N - 4 - 1 = 0

N - 5 = 0

N = 0+5 = 5

(d) N2H4

2(N) + (4×1) = 0

2N + 4 = 0

2N = 0 - 4 = -4

N = -4/2 = -2

(2) Molcular mass of benzene = 78g/mole = (6×12g of carbon) + (6×1g of hydrogen) = 72+6 = 78g/mole

Therefore, molecular formula for benzene is C6H6

7 0
3 years ago
A karyotype can be used to determine the number of ____________________ (alleles, chromosomes) in a person’s cells.
Furkat [3]

Answer:

Chromosomes

Explanation:

A karyotype is an individual's collection of chromosomes

Hope this helps!

Plz click the Thanks button :)

Jayla

5 0
3 years ago
How do you find the number of valence electrons
Ganezh [65]

Answer:LULULLUL

Explanation:

6 0
4 years ago
Read 2 more answers
Please help if you do the food chain has to have the gray wolf in it
Marat540 [252]

Answer:

grass->bug->mice->wolf

Explanation:

7 0
3 years ago
Read 2 more answers
Helppppppp! why should i use spr??
Viktor [21]

SPR can be used in order to do real time monitoring and to evaluate the advancement of compounds.

<h3>Why should we use SPR?</h3>

SPR provide information to evaluate whether or not compounds should advance to the next stage of investigation. It also provides real-time monitoring.

So we can conclude that SPR can be used in order to do real time monitoring and to evaluate the advancement of compounds.

Learn more about monitoring here: brainly.com/question/13163394

#SPJ1

6 0
2 years ago
Other questions:
  • Which facts did you include in your response? Check all that apply.
    15·2 answers
  • During meiosis, only one chromosome from each homologous is passed on to the offspring. What does this help increase?
    15·1 answer
  • Which age range would you expect to find a higher mortality rate in a typical disease?
    9·1 answer
  • 1. If ice is heated at a constant pressure of 0.00512 atm, it will______ . 2. If ice is heated at a constant pressure of 1 atm,
    10·1 answer
  • How would the graph change if a catalyst were used
    11·1 answer
  • What is a characteristic of a lewis base?
    5·1 answer
  • A pan containing 20 grams of water was allowed to cool from temperature of 95 degrees C. If the amount of heat released is 1200
    8·1 answer
  • ‼️ i really need help. if anyone can do 10 pages of a grade 11 chemistry packet (multiple choice) let me know. i can pay money
    6·1 answer
  • Given the problem below, what would the first step be in solving it?
    5·1 answer
  • A garbage collector collects food wrappers and aluminum cans from a park. what type of waste is the garbage collector collecting
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!