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
MAXImum [283]
3 years ago
10

In what kind of reaction do two or more substances combine to form a new compound

Chemistry
1 answer:
Misha Larkins [42]3 years ago
4 0

Answer:

Combination or synthesis

Explanation:

In combination or synthesis, there is formation of a single product from two or more reactants e.g:

               H₂ + I₂ → 2HI

Here a compound forms from the association of the consituent elements.

Other kinds of chemical reactions we have are:

  1. Decomposition or cracking
  2. Single replacement or single displacement
  3. Double replacement or double decomposition or metathesis.
You might be interested in
The atomic number of Re is 75. The atomic mass of one of its isotopes is 186. How many neutrons are in an atom of this isotope?
USPshnik [31]

Answer:

B.111

Explanation:

Atomic mass = number of protons(or atomic number) + number of neutrons

186 = 75 + number of neutrons

number of neutrons = 186 -75 = 111

7 0
3 years ago
lassify these bonds as ionic, polar covalent, or nonpolar covalent. Ionic Polar covalent Nonpolar covalent
jarptica [38.1K]

The question is incomplete, complete question is:

Classify these bonds as ionic, polar covalent, or nonpolar covalent.

Na-F

P-Cl

Cl-Cl

Answer:

Na-F  : The bond present is ionic bond.

PCl  : The bond present is polar covalent bond.

ClCl  : The bond present is non polar covalent bond.

Explanation:

1) Ionic bonds are defined as the bonds which are formed by the complete transfer of electrons from cation (positively charged ions) to anion (negatively charged ions). For Example: NaCl, BaSO_4 etc.

Ionic compound :This compound is formed when difference in electronegativity between the atoms is very large.

2) Covalent bond is defined as the bond which is formed by the sharing of electrons between the atoms. For Example: HCl, CH_4 etc.

Polar covalent compound: This compound is formed when difference in electronegativity between the atoms is present. When atoms of different elements combine, it results in the formation of polar covalent bond. For Example: CO_2,NO_2 etc..

Non-polar covalent compound: This compound is formed when there is no difference in electronegativity between the atoms. When atoms of the same element combine, it results in the formation of non-polar covalent bond. For Example: N_2,O_2 etc.

Na-F  : Two different atoms with high electronegativity difference

Ionic compound because sodium is metal and fluorine is non metal and the difference between their electronegativity is very large.The bond present is ionic bond.

PCl  : Two different atoms with low electronegativity difference

Polar covalent  compound because phosphorus and fluorine both are non metal and the difference between their electronegativity is not very large.The bond present is polar covalent bond.

ClCl  : Two same atoms with nil electronegativity difference.

Non Polar covalent compound because both are chlorine atom (non metal) and the difference between their electronegativity is zero.The bond present is non polar covalent bond.

5 0
2 years ago
A balloon sits in the sunlight causing it to heat up and explode. Which of the following
luda_lava [24]
I think it’s A, the particles of gas inside the ballon move faster and decrease pressure in
6 0
1 year ago
A solution of 0.0027 M K2CrO4 was diluted from 3.00 mL to 100. mL. What is the molarity of the new solution?
Stells [14]

Answer:

[K₂CrO₄] → 8.1×10⁻⁵ M

Explanation:

First of all, you may know that if you dilute, molarity must decrease.

In the first solution we need to calculate the mmoles:

M = mmol/mL

mL . M = mmol

0.0027 mmol/mL . 3mL = 0.0081 mmoles

These mmoles  of potassium chromate are in 3 mL but, it stays in 100 mL too.

New molarity is:

0.0081 mmoles / 100mL = 8.1×10⁻⁵ M

4 0
3 years ago
If you burn 28.2g of hydrogen and produce 252g of water, how much oxygen reacted
andrey2020 [161]
15% oxygen is reacted
6 0
3 years ago
Other questions:
  • What are the branch-chain Alkanes?
    14·2 answers
  • Mercury is an element. Which of the following would be the same for all atoms of mercury?
    6·2 answers
  • What element has the same valence electrons as carbon A) N B) AI C) Si or D) Be
    9·1 answer
  • The rate at which a reaction is proceeding at a specific point in time is called the:______
    12·2 answers
  • When a 2.5 mol of sugar (C12H22O11) are added to a certain amount of water the boiling point is raised by 1 Celsius degree. If 2
    7·2 answers
  • When the pressure and number of particles are kept constant for a sample of gas, which of the following is also constant for the
    13·1 answer
  • Where is the only place the weak necular force can be seen
    7·2 answers
  • If you have 9900 g of donuts, how many donuts do you have if each donut has a mass of 150 g?
    12·1 answer
  • Which on the following is used to kill bugs on crops???????
    6·2 answers
  • 22. Which of the following molecules or ions contain polar bonds?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!