Chemistry Middle School

this is the portion of the electromagnetic spectrum that has a frequency just below the visible spectrum. (For number 8, the one that is highlighted.)​

This Is The Portion Of The Electromagnetic Spectrum That Has A Frequency Just Below The Visible Spectrum.

Answers

Answer 1
Electromagnetic Spectrum (either one or the other)

Answer 2

Answer:

these are very difficult dear

Explanation:

Related Questions

Carlos is using the following images of a coal plant and a barbecue for his science investigation about chemical energy. Based on his observations, which statement most likely describes the conclusion of his investigation?

a coal plant


a barbecue


The images show examples of chemical energy being converted into heat and electrical energy.
The images show examples of mechanical energy being converted to heat energy.
The power plant and the barbecue convert electrical energy into chemical energy.
The power plant and the barbecue store heat energy and convert it to chemical and electrical energy.

Answers

I believe it is the first one, please correct me if I'm wrong.

Answer:

A

Explanation:

PLSSS HELP

The graph shows the distance traveled by a ball over a certain amount of time. According to the graph, between 2 and 4 seconds the ball was-

A. traveling at a constant speed.

B. increasing its speed.

C. changing its direction.

D. remaining at rest.

Answers

the correct answer is A. traveling at a constant speed.

Which phrase describes the parts of a solution but NOT the parts of a heterogeneous mixture?

A.) evenly mixed
B.) chemically bonded
C.)always a single type of atom
D.) easily visible with a unaided eye

Answers

always a single type of atom

Answer:

c

Explanation:

what is the volume of a marble that has a mass of 3.g and a Density of 2.7 g/ml ?
make sure to round to the nearest tenth

Answers

Answer:

1.111 or since you want me to round 1.1 if not right let me know please.

Explanation:

Answer:

1.1

Explanation:

all you have to do is divide the mass by density to get the volume yurr

The phase of matter can be changed by:

a) increasing temperature
b) decreasing mass
c) increasing volume
d) all of the above

Answers

Answer: A

Explanation: Mass and volume is the amount, amount doesn’t make the phase of a matter change.

I’m pretty sure it is all of the above I’m sorry if I get it wrong,hope it helps:)

HELP ITS DUE TOMORROW ​

Answers

Put them in numerical order

Mitochondria are very important to the cell and are sometimes called the powerhouses of the cell. Imagine that a certain virus penetrates a cell and reaches the mitochondria. Predict what would happen to the cell if the virus were able to destroy all of the cell's mitochondria.

A. The cell would eventually die without the ATP that it needs for activities

B. The cell would be unaffected by the loss of mitochondria and will continue to function normally

C. The cell would rapidly produce more proteins

D . The cell would multiple uncontrollably because there is nothing to stop it anymore.

Answers

Answer:

b

Explanation:

The answer I would choose is b

help please, thank you !!

Answers

Answer:

5

Explanation:

What's a compound?
What's an element?
whatss a mixture?

Answers

a compound is two or more elements.
a element is a pure substance when cannot be broken down. it consists of atoms, protons, neutrons, and electrons.
a mixture is a a substance made by mixing other substance together.

Answer:

Compound: any substance composed of identical molecules consisting of atoms of two or more chemical elements.

Element: is a pure substance which cannot be broken down by chemical means.

Mixture: is a substance which consist of two or more elements or compounds not chemically combined together.

PLEASE HELP! DUE IN 5 MINUTES! ( 10 points )
An atom of gold with 79 protons, 79 Electrons and 118 neutrons would have a mass number of....
A) 39
B) 158
C) 197
D) 276

Answers

Answer:

C

Explanation:

An atom of gold with 79 protons, 79 Electrons and 118 neutrons would have a mass number of  197 gold. Therefore, option C is correct.

What is mass number ?

The total number of protons and neutrons in an atomic nucleus is known as the mass number, often known as the atomic mass number or nucleon number. In atomic mass units, it is roughly equivalent to the atom's atomic mass.

Because it indicates the mass of the entire number of protons and neutrons in an element, the mass number of an element is so named. The atomic number and atomic mass of an element are typically listed in periodic tables along with the chemical symbols for each element.

The third element in the periodic table's eleventh column is gold. It is under the transition metal category. The most common isotope of gold has 118 neutrons and 79 protons together with 79 electrons.

Thus, option C is correct.

To learn more about mass number, follow the link;

https://brainly.com/question/4408975

#SPJ6

Which statements are true of geothermal energy? Check all that apply.

It is constantly being produced inside the Earth.
Hot water from hot springs or reservoirs is used in heating systems.
It is created by energy from the Sun.
It can be used to generate electricity.
It can be unreliable because it is affected by the weather.
The United States is the world leader in generating power from geothermal energy.

Answers

Answer:

1,2,4,6

Explanation:

Answer:

The answer is 1,2,4, and 6 on edge2021

Explanation:

Why are gamma rays not affected by a magnet as they pass over it?

a) Gamma rays do not have enough mass to be affected.
b)Gamma rays do not have the right electrical charge to be affected.
c) Gamma rays are composed of only energy.
d) Gamma rays move too fast for anything to affect their pathway.

Answers

I think it's B

I hope I helped

B - gamma rays do not have the right electrical charge to be affected
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