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Anna71 [15]
3 years ago
14

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

on?
A) Combination
B) Double-Replacement
C) Decomposition
D) Substitution
Chemistry
2 answers:
Sloan [31]3 years ago
7 0

Answer:

a

Explanation:

A) Combination

maksim [4K]3 years ago
5 0

Answer:

A

Explanation:

Addition Reaction.

Reactions in which two or more chemical substances undergo a chemical union is called Addition reaction.

For example:

A + B ------>  C.

Or

A + B + C ------> D

Above are examples of Addition reaction.

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The largest number of stable nuclei have an ________ number of protons and an ________ number of neutrons.
postnew [5]

Answer:

did it give you answers to in blanks

8 0
3 years ago
In an investigation with density, Marcia’s teacher measures the mass and volume of 10 different samples of a substance. The samp
valina [46]

Answer:

Mass  

Step-by-step explanation:

Usually, you plot the independent variable along the horizontal (x) axis and the dependent variable along the vertical (y) axis.

Marcia's teacher plotted the mass of the sample along the x-axis and volume along the y-axis.

The mass is the independent variable, because that is <em>what the teacher varied</em>.

The volume is the <em>dependent variable</em>, because it <em>depends</em> on the mass.

Sample number is <em>wrong</em>, because it is not a variable.

Substance is <em>wrong</em>, because all samples consist of the same substance.

Density is <em>wrong</em>, because it is constant. It is the slope of the graph.

3 0
3 years ago
Read 2 more answers
Describe an acid or base in terms of its relationship to protons
motikmotik
Acids are donors of protons (H+) and bases are acceptors of protons.
For example:
1) hydrochloric acid (HCl) in reaction with water give one proton to water and become chloride anion (Cl-).
2) ammonia (NH3) Is base, in reaction with water accepts one protone and become ammonium cation (NH4+).
4 0
3 years ago
hi, can you check if my answers are correct? I'm not so confident in this topic (topic: Classifying Types of Chemical Reactions)
NikAS [45]
I am pretty sure your answer are correct , from what I know. Good job!
7 0
3 years ago
From the formula MgO how do you know that Mg is the metal?
Damm [24]

In binary ionic compounds the name of the cation (Metal) is first, so that’s how you know.

5 0
3 years ago
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