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
Savatey [412]
2 years ago
11

What can we say about elements?

Physics
2 answers:
Andrew [12]2 years ago
7 0

Answer:

I would say that your best answer would be C.

I'm not too sure about this, but it's the best answer on there

Explanation:

Hope this helps you.

gtnhenbr [62]2 years ago
7 0
<h3>Answer:</h3>

C. They can be bonded together to create different substances.

<h3>Explanation:</h3>

Elements are the simplest substances that can get without losing their properties. They can be found on the periodic table.

To help answer this question we can break down each answer choice.

Choice A

Answer A cannot be correct simply because of the definition of an element. A substance of a pure element cannot be broken down into any simpler substance. The only thing beyond an element is subatomic particles like protons and electrons, which are not considered substances. So elements are the simplest substances that exist.

Choice B

Many elements are found in nature. It would be impossible to live if elements were not naturally occurring. For example, oxygen is an element. Oxygen is found naturally in the atmosphere and is replenished by photosynthesis and the carbon cycle. Additionally, all life is carbon-based, so of course, carbon is also naturally occurring.

Choice C

Chemical compounds and substances surround us every day. Just as we need oxygen to breathe, carbon dioxide is also an important part of life. Carbon dioxide is a substance created by the bonding of carbon and two oxygen atoms when we breathe out. So, it is true that elements can be boned to create substances.

Choice D

As stated in the explanation for choice B, elements can be found naturally. There are some elements created in a lab like Technetium, but others such as sulfur and oxygen are not created in labs.

You might be interested in
What are the characteristics of low energy waves
Ray Of Light [21]
Higher frequency,higher energy,shorter wavelength
8 0
3 years ago
What is the formula for calculating the efficiency of a heat engine?
Anton [14]

Answer:

Efficiency = StartFraction T Subscript h Baseline minus T Subscript C Baseline over T Subscript h Baseline EndFraction times 100. Efficiency equals T Subscript c Baseline minus T Subscript h Baseline over T Subscript h Baseline all times 100.

7 0
3 years ago
Read 2 more answers
Which of the following is the human ear able to detect?
DaniilM [7]
I believe it would be a musical note
7 0
3 years ago
Read 2 more answers
A ball rolls down the hill which has a vertical height of 15 m. Ignoring friction what would be the gravitational potential ener
trasher [3.6K]

a) Potential energy: 147 m [J]

The gravitational potential energy of an object is given by

U=mgh

where

m is its mass

g=9.8 m/s^2 is the acceleration of gravity

h is the height of the object above the ground

In this problem,

h = 15 m

We call 'm' the mass of the ball, since we don't know it

So, the potential energy of the ball at the top of the hill is

U=(m)(9.8)(15)=147 m (J)

b) Velocity of the ball at the bottom of the hill: 17.1 m/s

According to the law of conservation of energy, in absence of friction all the potential energy of the ball is converted into kinetic energy as the ball reaches the bottom of the hill. Therefore we can write:

U=K=\frac{1}{2}mv^2

where

v is the final velocity of the ball

We know from part a) that

U = 147 m

Substituting into the equation above,

147 m = \frac{1}{2}mv^2

And re-arranging for v, we find the velocity:

v=\sqrt{2\cdot 147}=17.1 m/s

5 0
3 years ago
which of the following laboratory tool would be most appropiate for measuring the approximate volume of a liquid?
SIZIF [17.4K]
Beaker would be most appropriate for measuring the approximate volume of a liquid.
7 0
3 years ago
Other questions:
  • I need this asap please
    14·1 answer
  • How much meters is a mile
    13·1 answer
  • QuesLUI 2 UI IU
    9·1 answer
  • You serve a tennis ball from a height of 1.80 m above the ground. The ball leaves your racket with a velocity of 18.0 m/s at an
    11·1 answer
  • Consider the average speed of a runner who jogs around a track four times. The distance (400m) remains constant for each lap. Ho
    9·1 answer
  • What is the length of a one-dimensional box in which an electron in the n=1 state has the same energy as a photon with a wavelen
    15·1 answer
  • Find V <br><br><br> V=25m. <br> _____=??<br> 3.5s.
    11·1 answer
  • Hello please help i’ll give brainliest
    10·1 answer
  • An asteroid is discovered in a nearly circular orbit around the Sun, with an orbital radius that is 3.570 times Earth's. What is
    8·1 answer
  • The diagrams show four bodies moving in the directions shown. The only forces acting on the bodies are shown in each diagram.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!