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
Sindrei [870]
2 years ago
9

Oxygen is composed of only one kind of atom and can’t be separated into simpler substances. What type of matter is it? A. soluti

on B. element C. mixture D. compound E. colloid
Chemistry
2 answers:
drek231 [11]2 years ago
8 0
The answer is <span>B. element.

An element is composed of only one kind of atom and cannot be separated into simpler substances. Oxygen (O) is the element.
A compound is a substance composed </span><span>of two or more <em>different </em>atoms chemically bonded to one another, for example, water (H</span>₂<span>O) consists of 2 atoms of hydrogen (H) and 1 atom of oxygen (O), so it is the compound.
A mixture consists of two or more substances that are not chemically combined. Solutions and colloids are mixtures.</span>
Oxana [17]2 years ago
6 0
B.) It is an element.......
You might be interested in
Iron (III) oxide - what does<br> the III mean?
Aleonysh [2.5K]

Answer:

The iron is in the +3 oxidation state, which is what the III means. 

7 0
3 years ago
300 °C would be found in which temperature range?
devlian [24]
Hey it’s D
673K-772K
8 0
3 years ago
Explain how the heat and phase changes affects the environment? Give examples.<br>(5-7 sentences)​
NeX [460]
Energy is required to change the phase of a substance, such as the energy to break the bonds between molecules in a block of ice so it may melt.
During a phase change energy my be added or subtracted from a system, but the temperature will not change. The temperature will change only when the phase change has completed. No temperature change occurs from heat transfer if ice melts and becomes liquid water (i.e., during a phase change). For example, consider water dripping from icicles melting on a roof warmed by the Sun. Conversely, water freezes in an ice tray cooled by lower-temperature surroundings. Energy is required to melt a solid because the cohesive bonds between the molecules in the solid must be broken apart so that the molecules can move around at comparable kinetic energies; thus, there is no rise in temperature.
7 0
2 years ago
When the products of a reaction are hotter than the reactants: The reaction is exothermic. The reaction is endothermic. The reac
AlekseyPX
<span>Exothermic reaction evolves energy due to which products get hot...</span>
3 0
3 years ago
Read 2 more answers
Dalton's Atomic Model
olga_2 [115]

Answer:

A theory of chemical combination, first stated by John Dalton in 1803. It involves the following postulates: (1) Elements consist of indivisible small particles (atoms). (2) All atoms of the same element are identical; different elements have different types of atom. (3) Atoms can neither be created nor destroyed. Based on all his observations, Dalton proposed his model of an atom. It is often referred to as the billiard ball model. He defined an atom to be a ball-like structure, as the concepts of atomic nucleus and electrons were unknown at the time.

John Dalton developed a crude method for measuring the masses of the elements in a compound. His law of multiple proportions states that when two elements form more than one compound, masses of one element that combine with a fixed mass of the other are in a ratio of small whole numbers.

Explanation: Sup. Hope dis helps u bro

7 0
3 years ago
Other questions:
  • Imagine you could observe the individual atoms that make up a piece of matter and that you observe the motion of the atoms becom
    15·1 answer
  • Air is transparent material?
    14·2 answers
  • Typical residential shower controls mix streams of hot water (140 F, or 60 C) with cold water (60 F, or 15 C) to form a stream o
    5·1 answer
  • Are elements with similar chemical properties found in the same period or group on the periodic table?
    14·1 answer
  • How many joules of heat are required to heat 25.0 g of isopropyl alcohol from the prevailing room temperature, 21.2 oC, to its b
    11·1 answer
  • 25 POINTS PLS ANSWER
    5·1 answer
  • Which part of the human nervous system links the brain to the rest of the body
    8·1 answer
  • Substance A is mixed with water and donates 0.4% of its H+ ions. Which of the following BEST describes Substance A? (See picture
    14·1 answer
  • When forming bonds, atoms tend to acquire a stable electron configuration as in having 8 valence electrons. This is an example o
    11·1 answer
  • Hello BEANS would you like to play a game knok knok
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!