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
viktelen [127]
3 years ago
7

What is the bond angle between the hydrogen atoms in the ammonia molecule

Biology
1 answer:
motikmotik3 years ago
8 0

<span>There are 4 electron pairs (3 bonding and 1 lone pair) so the angle is 107 degrees. The 4 electron pairs are repelled to give a tetrahedral arrangement but the molecule has a pyrimidal shape due to the lone pair. </span>
You might be interested in
An organism is resistant to a chemical if it __________. did not eat anything with the chemical on it has been exposed to a smal
Dafna11 [192]

an organism is resistant to a chemical if it has a gene that protects it from the chemical.

8 0
4 years ago
What part of the amniotic egg provides food for the embryo?
aev [14]

it would be C the yolk because


8 0
3 years ago
Read 2 more answers
Attached earlobes are recessive to free earlobes. What genotypic ratio is expected when an individual with attached earlobes mat
Marianna [84]

Answer:

C

Explanation:

This is a monohybrid cross between involving a gene coding for earlobe. The allele for free earlobe (F) is dominant over that of attached earlobe (f).

N.B: let F represent the gene involved.

A genotypic ratio is the ratio derived from the offsprings based on the actual genetic make-up and not based on their phenotypic appearance as in phenotypic ratio.

A homozygous individual is an individual having the same kind of alleles for a gene while a heterozygous individual is one that has two different alleles i.e. combination of the dominant and recessive allele.

The monohybrid cross is between an individual with attached earlobe (ff) i.e. homozygous recessive individual. (Note that, a recessive trait will only be expressed in a homozygous state) and a heterozygous free earlobeb individual (Ff). (See attached picture). Ff × ff

The resulting four offsprings will

be expected to have only two distinct genotypes i.e heterozygous (Ff) and homozygous recessive (ff) in an equal ratio i.e. 2:2 ~ 1:1

4 0
3 years ago
An 80-year-old client with a history of coronary artery disease is admitted to the hospital for observation after a fall. during
lara31 [8.8K]
Orthopneic

The client's paroxysmal dyspnea was probably caused by sleeping in bed with the legs at the level of the heart; this position increases venous return from dependent body areas, increasing the intravascular volume. Sitting up and leaning forward while keeping the legs dependent slows venous return as well as increases thoracic capacity. Although the contour position elevates the client's head, it does not place the legs in a dependent enough position to substantially decrease venous return. The recumbent position is contraindicated. Venous return increases when the lower extremities are at the level of the heart. Also, the pressure of the abdominal organs against the diaphragm decreases thoracic capacity. The Trendelenburg position is contraindicated. Venous return increases when the lower extremities are higher than the level of the heart. Also, the pressure of the abdominal organs against the diaphragm decreases thoracic capacity.
3 0
3 years ago
Arrange the following from smallest to largest: cell, chromosome, gene, DNA
drek231 [11]
Cell, DNA, chromosome, gene
In order of decreased size
6 0
2 years ago
Other questions:
  • A strand of dna contains the base sequence agtt. what is the sequence of the complementary strand of dna?
    5·2 answers
  • What starts digestion?
    8·2 answers
  • Which of the following statements best describes what happens when a bacterial cell is placed in a solution containing 5 percent
    14·1 answer
  • What types of pollution do microoragnisns remove from real wastewater?
    5·1 answer
  • Choose all the answers that apply. Ground tissue _____.
    14·1 answer
  • I need these by today pls help
    6·1 answer
  • Oogenesis ultimately results in the production of how many cell(s).
    12·2 answers
  • Which two statements describe what happens to the nucleus of an atom
    14·2 answers
  • Which condition is inherited as a dominant allele?
    12·1 answer
  • Read the procedure. What is the purpose of the bicarbonate that is dissolved in the water?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!