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AleksAgata [21]
3 years ago
9

A substance is composed of only one kind of Adam and can't be separated into simpler substances are converted into it another su

bstance by chemical processes
Chemistry
1 answer:
Zarrin [17]3 years ago
3 0

Answer:

Element

Explanation:

An element is substance that is composed of only one kind of atom and can not be separated into simpler substances or converted into another substance by chemical processes.

Chemical elements are found in the periodic table. Examples of chemical elements include; sodium potassium, phosphorus, hydrogen etc.

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Name a Solid, Liquid, and a Gas. Solid: Liquid: Gas:
crimeas [40]

Answer:

Gas - Steam

Solid - Rock

Liquid - Juice

3 0
3 years ago
Read 2 more answers
A discus thrower throws a 1.6kg discus at 25m/s what's the kinetic energy?​
Ilya [14]

Answer:

<h2>500 J</h2>

Explanation:

The kinetic energy of an object can be found by using the formula

k =  \frac{1}{2} m {v}^{2} \\

where

m is the mass

v is the velocity

From the question

m = 1.6 kg

v = 25 m/s

We have

k =  \frac{1}{2}  \times 1.6 \times  {25}^{2}  \\  = 0.8 \times 625 \\  = 500

We have the final answer as

<h3>500 J </h3>

Hope this helps you

6 0
3 years ago
The ability to attract an electron for bonding is called:
Darina [25.2K]
The ability to attract an electron for bonding is called (option B) Electronegativity.
4 0
3 years ago
A chemist prepares a solution of sodium chloride(NaCl) by measuring out 25.4g of sodium chloride into a 100ml volumetric flask a
labwork [276]

Answer: 4 molL-1

Explanation:

Detailed solution is shown in the image attached. The number of moles of NaCl is first obtained. Since the molarity must be in units of molL-1, the volume is divided by 1000 and the formula stated in the solution is applied and the answer is given to one significant figure.

5 0
3 years ago
Read 2 more answers
Why is pseudo science not considered real science
swat32

Pseudo-science is not considered real science because it is not testable.

Answer:  Option A

<u>Explanation:</u>

Pseudoscience primarily includes beliefs, theories or practices that are somehow incompatible with the scientific facts. The pseudoscience can’t be tested on the basis of science.

Let’s take an example of astrology. Some people believe that stars and other celestial bodies draw a significant impact on their life i.e. Good or bad thing it's just because their stars are working either in a positive or negative manner.

But, this belief doesn’t have any well-proved or authentic background over which the whole concept can rely on. Hence, pseudoscience is not taken as a real science as a lack of strong proves.

8 0
4 years ago
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