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
mylen [45]
2 years ago
14

PLEASE HELP. I'll give you brainliset if you get it.

Chemistry
2 answers:
goldenfox [79]2 years ago
6 0
D i believe (sorry if it’s wrong!) :(
Mila [183]2 years ago
4 0

Answer:

D.

Explanation:

they have simaliar chemical and physical properties

You might be interested in
The molar mass of an unknown gas was measured by an effusion experiment. It was found that it took 60 s for the gas to effuse, w
Marizza181 [45]

Answer:

The molar mass of the gas is 44 g/mol

Explanation:

It is possible to solve this problem using Graham's law that says: Rates of effusion are inversely dependent on the square of the mass of each gas. That is:

\frac{r_1}{r_2} =\frac{\sqrt{M_2} }{\sqrt{M_1} }

If rate of effusion of nitrogen is Xdistance / 48s and for the unknown gas is X distance / 60s and mass of nitrogen gas is 28g/mol (N₂):

\frac{X/48s}{X/60s} =\frac{\sqrt{M_2} }{\sqrt{28g/mol} }

6,61 = √M₂

44g/mol = M₂

<em>The molar mass of the gas is 44 g/mol</em>

<em></em>

I hope it helps!

4 0
3 years ago
What is Corona virus And explain breifly in​
stira [4]

Answer:

it is a viral disease . it is infected by one person to other .

7 0
3 years ago
A scientist is conducting a Sanger's sequencing experiment to determine the number of polypeptides present in an oligomeric prot
seropon [69]

Answer:

Depends on molecule.

Explanation:

The number of the polypeptide chains present in the oligomer depends on the molecule. Some molecules have more polypeptide chains whereas some of them have less polypeptide chains. For example, Hemoglobin is a oligomer that consists of four Polypeptide Chains, two of these Polypeptide Chains are α-globin molecules, each comprise of 141 amino acids, and the other two are (β, γ, δ, or ε) globins, each consist of 146 amino acids.

7 0
3 years ago
Rank the types of visible light in order from longest to shortest wavelength?
inysia [295]
Red
Orange
Yellow
Green
Blue
Indigo
Violet

Red being the longest
Violet the shortest
7 0
3 years ago
Which type of force occurs between two objects at a distance?
agasfer [191]

Answer:

Gravitational force of attraction.

Explanation:

When two bodies of masses 'm' and 'M' are separated by a distance 'r', then both the bodies experience a force of attraction towards each other. This force of attraction is called gravitational force. It is a weak force but it always act between two bodies that have mass.

The magnitude of the gravitational force is directly proportional to product of the masses and inversely proportional to the square of the distance between the masses.

This means that as the distance between the bodies is increases, the gravitational force between the bodies decreases and vice versa.

The gravitational force of attraction is given as:

F_g=\frac{GmM}{r^2}\\\\G\to \textrm{Universal Gravitational constant}

5 0
3 years ago
Other questions:
  • Where can volcanoes form?
    15·1 answer
  • How many moles of solid NaF would have to be added to 1.0 L of 0.115 M HF solution to achieve a buffer of pH 3.46? Assume there
    9·1 answer
  • MORE HELP ANOTHER 20 POINTS AND BRAINLIEST
    13·1 answer
  • Consider the alkane below. Which property differentiates this alkane from other classes of alkanes?
    8·2 answers
  • When H2 and CO2 react, acetic acid can be formed spontaneously while the production of formaldehyde requires an input of energy.
    12·1 answer
  • ???????????????????????????????????????
    8·1 answer
  • Given the following equation:
    7·1 answer
  • Explain why the atomic radius decreases across a period and increases down a group ?​
    11·1 answer
  • According to the diagram below, which of the following factors keeps Earth in motion around the sun?
    14·1 answer
  • What kind of metal are spoons typically made out of?.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!