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
VMariaS [17]
3 years ago
13

which statement is true about the part of the electromagnetic spectrum that is visible to the human eye?

Chemistry
2 answers:
IgorLugansk [536]3 years ago
6 0
Hello @Lucysrv18,

How are you doing? In this case, we know that Electromagnetic waves that are visible to the human eye is neither made up of two electromagnetic waves nor three. Therefore B and C is incorrect.

These electromagnetic waves are divided and they are our final two options. For sure, i can say that the wavelengths in a visible electromagnetic wave are not divided into nine, but instead it is divided into 7. 

The answer to your question is A. 

Thank you,
Darian D. 

mezya [45]3 years ago
5 0

Answer: a

i JUST TOOK THE TEST

You might be interested in
What is the differnce between the atomic number and the mass number of an element?
MrRissso [65]
Atomic number refers to the number of protons within the nuclei of an element's atoms (and therefore the number of electrons) while mass number refers to the number of protons and neutrons within the nucleus.
8 0
3 years ago
Patient added a 17-g measured dose of polyethylene glycol 3350 (MIRALAX) to 180 mL of water to use as a laxative. If the volume
Sergio [31]

Answer: Apparent density of ethylene glycol 3350 = 17g/15.6mL= 1.09g/mL

Specific gravity of mixture = 1.01

Explanation:

The specific gravity of an object or substance is the ratio of the density of that object or substance to that of a reference substance usually water.

<em>Specific gravity = density of substance/density of water</em>

The density of a substance is the ratio of the mass of that substance to is volume.

<em>Density = Mass/volume</em>

Density of water 1.00 g/mL,  

Apparent density of ethylene glycol 3350 = mass/volume

volume of ethylene glycol = volume of mixture - volume of water

volume of ethylene glycol = 195.6 - 180) = 15.6mL

Apparent density of ethylene glycol 3350 = 17g/15.6mL= 1.09g/mL

<em>mass of water =  density of water * volume of water</em>

mass of water = 1.00g/mL * 180mL = 180 g

Mass of solution = mass of substance + mass of water = (17 + 180)g = 197g

Density of mixture = mass of mixture / volume of mixture

Density of mixture = 197 g / 195.6 mL = 1.01 g/mL

specific gravity of mixture = density of mixture / density of water

specific gravity of mixture = 1.01g/mL / 1.00g/mL

specific gravity of mixture = 1.01

8 0
4 years ago
Please help! It would be amazing if you can!!
Anastaziya [24]

Answer:

3) Warm Temperatures and High pressures

Explanation:

This is the typical characteristic of southern air masses moving north

5 0
3 years ago
What is the definition of a chemical bond?
Gnom [1K]

Answer:

B

Explanation:

bonding is a process of two different atoms sharing electrons for stability and these electrons are attracted by one atom losing it's electrons to another

7 0
3 years ago
An electron is moving northward in a magnetic field. the magnetic force on the electron is toward the northeast. what is the dir
sweet-ann [11.9K]
The direction of the magnetic field would be going up.
8 0
3 years ago
Other questions:
  • Write the concentration equilibrium constant expression for this reaction. 2cui (s) + i2 (aq) → 2cu+2 (aq) + 4i− (aq)
    14·2 answers
  • After analyzing rock core samples in an area with frequent earthquakes, many geologists believe a severe earthquake will occur i
    10·2 answers
  • Fill in the blanks: The original organism is called the _____________, and new organisms are called the _____________. Thx so mu
    13·1 answer
  • MODomy
    15·1 answer
  • The average adult heart pumps about 84. mL/s of blood at 72 beats per minute. Suppose you need to calculate how long it would ta
    9·1 answer
  • An ionic compound has the general formula, XCl2. Element X comes from which group? Justify your answer with an explanation and p
    13·1 answer
  • The freezing point of a substance is the<br> at<br> which it freezes.
    13·2 answers
  • Chemical energy is stored in the bonds of (1 point)
    10·1 answer
  • Pleaseeee help pretty please
    13·2 answers
  • 100.0 g of liquid copper (molar mass 63.546 g/mol; melting point 1358 K; density 8.02 g/mL) is placed in a rigid container of vo
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!