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
Rudik [331]
1 year ago
7

16. What is a pure substance formed when two or more different elementscombine called?A. compoundB. moleculeC. element

Chemistry
1 answer:
Lana71 [14]1 year ago
3 0
<h2>Answer:</h2>

Compound. Option A is correct

<h2>Explanations:</h2>

When two or more different elements combines, a compound is formed. For instance, if carbon and oxygen combines, carbondioxide is formed according to the equation;

C+O_2\rightarrow CO_2

From the reaction, carbon and oxygen are the elements while carbondioxide is the compound. Hence we can conclude that a pure substance formed when two or more different elements combine called compound.

You might be interested in
Which state of matter has particles that vibrate in a rigid structure
dedylja [7]

Explanation:

Solids have definite shape and distinct boundaries as such the intermolecular forces between them is maximum

4 0
4 years ago
In an energy diagram for a chemical reaction, the reactants are always plotted to the left of the products.
Dominik [7]

the answer is false at lest that is what i know

8 0
4 years ago
Read 2 more answers
According to collision theory, the rate of reaction depends on atoms colliding in the correct _________ with enough ________ for
kenny6666 [7]

Answer: orientation , energy , frequency

Explanation:

According to the collision theory , the number of collisions that take place per unit volume of the reaction mixture is called collision frequency. The effective collisions are ones which result into the formation of products.

Effective collisions depends on the following  two factors:-

1. Orientation factor: The colliding molecules must have proper orientation at the time of collision to result into formation of products.

2. Energy factor:  For collision to be effective,  the colliding molecules must have energy more than a particular value called as threshold energy.

4 0
4 years ago
What is the velosity of a 72.3 kg jogger with a kinetic energy of 1080.0 J?
Svet_ta [14]

Answer: 5.47m/s

Explanation:

Mass = 72.3kg

K.E = 1080.0J

V =?

K.E = 1 /2MV^2

V^2 = 2K.E /M = (2x1080)/72.3

V = sqrt [(2x1080)/72.3]

V = 5.47m/s

7 0
3 years ago
16. Explain why antifreeze is used in vehicle radiators. Use your knowledge of the properties of
Fynjy0 [20]

Answer:

Antifreeze is whats used to keep your engine cool without freezing.

Explanation:

it keeps the engine from overheating.

It also prevents corrosion.

Here is a quote from google "Antifreeze works because the freezing and boiling points of liquids are “colligative” properties. This means they depend on the concentrations of “solutes,” or dissolved substances, in the solution. A pure solution freezes because the lower temperatures cause the molecules to slow down"

That quote is from "The Science Behind Antifreeze"

If you have any questions feel free to ask in the comments.

4 0
4 years ago
Other questions:
  • Primaries, the secret ballot, and the use of
    7·1 answer
  • Use lewis theory to determine the formula for the compound that forms from ca and s.
    5·1 answer
  • A hot-water stream at 70°C enters an adiabatic mixing chamber with a mass flow rate of 3.6 kg/s, where it is mixed with a stream
    12·1 answer
  • Describe dmitri mendleev 's periodic table ​
    12·1 answer
  • 328. mL of 0.00345 M NaI (aq) is combined with 703. mL of 0.00802 M Pb(NO3)2 (aq). Determine if a precipitate will form given th
    10·1 answer
  • When a gun is recovered from a crime scene never touch the blank with hands or any other object so you don't accidentally discha
    5·2 answers
  • Parker has a toy car he has made out of plastic building blocks. He breaks it apart so he can build something different with the
    9·2 answers
  • Molecular formula of CH3-CH2-CH2-CH2-CH2-Cl​
    8·1 answer
  • What is the percent composition of the following <br> *KBr<br> *LiOH<br> *Mgl2<br> *Al2(SO4)3
    10·1 answer
  • the ground-state valence-shell configuration of a particular atom is 4d105s25p1. the element to which this atom belongs is a
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!