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
Anni [7]
3 years ago
13

A chemical reaction in which two or more substances undergo a chemical union to form a more complex substance is a _______ react

ion.
A. substitution
B. combination
C. decomposition
D. double replacement
Chemistry
2 answers:
Georgia [21]3 years ago
7 0
I believe the correct answer is B. Combination.
Andreas93 [3]3 years ago
7 0
The answer is B. combination

You might be interested in
Why does a metallic ion produce a characteristic color?
BabaBlast [244]
What is iron fe symbol
6 0
2 years ago
2. Draw a picture of your home. Where does the sun rise relative to your house? Where does the sunset? On the picture, indicate
Semmy [17]

Answer:

sun rises in the east so to the right of the front of your house and sets to the left which is south.

Explanation: what i just said

8 0
2 years ago
Read 2 more answers
the chemical formula for copper iodide is Cul. How many atoms of copper(Cu) is it made from? How many atoms of iodine(I)?
Alexandra [31]
<span>The molecule contains one atom of copper and one atom of iodine. They are connected by an ionic bond because the copper takes a positive charge and the iodine has a negative charge before they are bonded. These opposing charges are negated when the two elements come together.</span>
7 0
2 years ago
A scientist observed a 5-mL sample of an unknown substance. It is a blue liquid with a density of 1.2 g/cm. the substance reacts
LenaWriter [7]
Characteristic properties can be used to describe and identify the substances, while non-characteristic properties, although can be used to describe the substances, cannot be used to identify them.

Temperature, mass, color, shape and volume are examples of non-characteristic properties.

Density, boiling point, melting point, chemical reactivity are examples of characteristic properties.

List of the properties observed by the scientist:
-----------------------------------------------------------------
Property                                     Type of property
----------------------------------------------------------------
Volume: 5 ml                              non-characteristic
----------------------------------------------------------------
Color: blue                                 non-characteristic
----------------------------------------------------------------
State: liquid                                characteristic
------------------------------------------------------------
density: 1.2 g/cm                        characteristic
------------------------------------------------------------
Reaction: reacts with CO2         characteristic
----------------------------------------------------------
5 0
3 years ago
How many electrons are in an atoms of germanium
sergeinik [125]
The atomic number of germanium is 32 i.e. 32 protons. The number of protons in the nucleus of atom is called atomic number. Germanium has 32 electrons ( 2 electrons in first orbit, 8 electrons in second orbit, 18 electrons in third orbit and 4 electrons in the outermost orbit.
6 0
3 years ago
Read 2 more answers
Other questions:
  • In Part A, you found the number of moles of product (1.80 mol P2O5 ) formed from the given amount of phosphorus and excess oxyge
    8·1 answer
  • Which of the following explain why nonmetals are typically harder and more brittle than metals?
    14·2 answers
  • How many atoms are in 4.00 moles of helium?
    6·2 answers
  • What information can be learned about atoms of different elements by examining the periodic table
    14·1 answer
  • Mg metal is placed in HCl and a gas is liberated. This is an example of a
    12·1 answer
  • How are bases named?
    14·2 answers
  • Classify each property as intensive or extensive. Color, temperature, volume, hardness, mass, boiling point, length, density
    12·2 answers
  • CH4 (g) + O2 (g) → CO2 (g) + H2O (g) to. If 28.6 g of CH4 is reacted with 57.6 g of O2, calculate the number of grams of CO2 pro
    12·1 answer
  • What is X ? <br> A-ethanol <br> B-hydrogen<br> c-methane<br> D-uranium
    13·2 answers
  • Turn on show lewis diagram. What is the lewis diagram for hydrogen, h2.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!