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brilliants [131]
3 years ago
8

Which of the following is an element? A. Steel B. Sodium chloride C. Fire D. Carbon

Chemistry
2 answers:
Vikki [24]3 years ago
8 0

Answer:

<h3><em>Which of the following is an element?</em></h3><h3><em>=</em><em>⟩</em><em>C</em><em>a</em><em>r</em><em>b</em><em>o</em><em>n</em><em> </em><em>is </em><em>an </em><em>element</em><em> </em><em>.</em></h3>

<em>Explanation</em><em>:</em><em>-</em>

  • <em>Carbon</em><em> </em><em>is </em><em>an </em><em>element</em><em> </em><em>having</em><em> </em><em>atomic </em><em>number</em><em> </em><em>6</em><em> </em><em>and </em><em>atomic</em><em> </em><em>mass</em><em> </em><em>1</em><em>2</em><em> </em><em>.</em>
  • <em>c </em><em>is </em><em>the </em><em>symbol</em><em> </em><em>to </em><em>represent</em><em> </em><em>carbon </em><em>.</em>

<em>hope </em><em>it</em><em> </em><em>is </em><em>helpful</em><em> to</em><em> you</em>

Kisachek [45]3 years ago
6 0
Carbon is the answer D
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vlabodo [156]

Im not sure but i think its 350. I really hope im right

8 0
3 years ago
What type of wave do the contractions of the snake muscles make as the snake moves forward
S_A_V [24]
Actually, there are four kinds of reptile motion: 

Concertina - vermiform. Circular muscles around the snake squeeze the front of the snake's body out long, then the latter half is pulled forward. 

Rectilinear crawling - Belly scutes are moved forward individually in a wave-like motion. 

Side-winding - Snake's version of "walking". Use by several species to move over fluidic substrates, such as sand. 

Lateral undulation - Most common form of movement. Snake presses on alternating pressure points to force body forward (or backward)

(taken from a user on Yahoo from Correct Answers)
3 0
3 years ago
A sample of water at 100°C is converted to steam after absorbing 820 kJ of heat. How grams of H2O are contained in the sample? A
Varvara68 [4.7K]
Since water is already at 100<span>°C all the energy is used to evaporate it. 
Now we can calculate how many </span>mols of water are evaporated with 820kJ.
N= \frac{820}{41} =20 mol
We calculated that we got 20 mols of water evaporated. Now, all we have to do is find how many grams is a mol of water. Molar mass of water is <span>20.16 g/mol.
</span>The final answer is:
m=20*20.16=403.2g




7 0
3 years ago
When a scientific investigation runs for several years, which is most likely true?
Bingel [31]

Answer:

1. Many different hypotheses will be tested.

Explanation:

Scientists test every hypothesis they make for their investigation, before moving onto bigger conclusions.

4 0
3 years ago
Read 2 more answers
If you can do this for me that would be great thank you!​
Stels [109]

Answer:

Mass is both a property of a physical body and a measure of its resistance to acceleration when a net force is applied. An object's mass also determines the strength of its gravitational attraction to other bodies. The basic SI unit of mass is the kilogram.

Gravity, or gravitation, is a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light—are brought toward one another. On Earth, gravity gives weight to physical objects, and the Moon's gravity causes the ocean tides.

When dealing with the force of gravity between two objects, there are only two things that are important – mass, and distance. The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them.

Gravitational energy or gravitational potential energy is the potential energy a massive object has in relation to another massive object due to gravity. It is the potential energy associated with the gravitational field, which is released when the objects fall towards each other.

In science and engineering, the weight of an object is the force acting on the object due to gravity. Some standard textbooks define weight as a vector quantity, the gravitational force acting on the object. Others define weight as a scalar quantity, the magnitude of the gravitational force

Newton's law of universal gravitation is usually stated as that every particle attracts every other particle in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

Explanation:

6 0
2 years ago
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