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
Andrej [43]
3 years ago
9

Why is it important to learn about chemical reactions?

Chemistry
2 answers:
Westkost [7]3 years ago
4 0

Answer:

so we know what chemicals do when they meet other chemicals in order to find cures and thing like that

Explanation:

Eduardwww [97]3 years ago
3 0

Answer:

Well they help us understand the properties of matter of course!

You might be interested in
Water boils at what degrees Celsius
Archy [21]
100 degrees Celsius. And apparently this answer needs at least 20 characters to explain it well. But yes, the answer is 100 degrees Celsius
4 0
3 years ago
Read 2 more answers
A scientist finds that a sample of matter contains three types of atoms. The sample can be any of the following, except:
GrogVix [38]

Answer:

The correct answer is C. element

Explanation:

The sample cannot be an element because an element - or <em>elemental substance</em> - cannot be decomposed into simpler substances. Thus, it cannot be composed by differents types of atoms. For example, an element is carbon (C).

As the sample contains <u>three types of atoms</u>, it can be a compound, a molecule or a mixture, because they can be composed by different types of atoms - of different chemical elements. For example, the sample could contain the element carbon (C) combined with other elements, for example oxygen (O) or hydrogen (H), amoing others.

6 0
3 years ago
What is the identity of an ion having 46 protons, 42 electrons and 60 neutrons?
Anon25 [30]

Answer:

first u lick it then out some sliva on it then rub it and once the volcano erupts u put it back in ur mouth and blow real hard ok!

Explanation:

repeat this process till the dong bleeds!

3 0
3 years ago
The atomic number of an atom is based upon the number of​
kolezko [41]
The atomic number of an element is based on the number of protons in the atomic nuclei of its atoms.
7 0
3 years ago
Read 2 more answers
How does the density of a gas depend on the molar mass of the gas?
AlladinOne [14]

Answer:

The density of the ideal gas is directly proportional to its molar mass.

Explanation:

Density is a scalar quantity that is denoted by the symbol ρ (rho). It is defined as the ratio of the mass (m) of the given sample and the total volume (V) of the sample.

\rho = \frac{m}{V}                          ......equation (1)

According to the ideal gas law for ideal gas:

PV = nRT                                       ......equation (2)

Here, V is the volume of gas, P is the pressure of gas, T is the absolute temperature, R is Gas constant and n is the number of moles of gas

As we know,

The number of moles: n = \frac{m}{M}

where m is the given mass of gas and M is the molar mass of the gas

So equation (2) can be written as:

PV = \frac{m}{M}RT

⇒ PM= \frac{m}{V} RT

⇒ \frac{PM}{RT}= \frac{m}{V}             ......equation (3)

Now from equation (1) and (3), we get

\frac{PM}{RT}= \frac{m}{V} = \rho  

⇒ Density of an ideal gas: \rho = \frac{PM}{RT}  

⇒ <em>Density of an ideal gas: ρ ∝ molar mass of gas: M</em>

<u>Therefore, the density of the ideal gas is directly proportional to its molar mass. </u>

6 0
4 years ago
Other questions:
  • HELP!!! The reversible reaction for the pH indicator bromophenol blue is (C19H8Br4O5S)H– ↔ (C19H8Br4O5S)2– + H+. Write the equil
    5·1 answer
  • How does photosynthesis affect our carbon footprint?
    6·2 answers
  • Which characteristic that a scientific measuring tool should have?
    13·2 answers
  • How many hydrogen atoms are present in 5.00 mg of aspartame?
    6·1 answer
  • Electrochemical processes are written with the oxidation half-reaction on the left and the reduction reaction on the right; wher
    11·1 answer
  • Light elements with an atomic number less than 20 generally have a neutron to proton ratio equal to
    7·1 answer
  • How many moles of Na2CO3 are in 100.0ml of a 2.0M solution?
    11·1 answer
  • What size volumetric flask would you use to create a 0.50 M<br> solution using 10.00 g of CaBr2
    10·1 answer
  • _____ is responsible for bringing gravity into modern science.
    14·1 answer
  • Helium on the Moon was found to be 0.420% 2He, 2.75% 3He, and 96.83% 4He. What is the average atomic mass of helium on the Moon?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!