CHEMISTRY HIGH SCHOOL

What kind of bond would a metal and a nonmetal typically make?A. An Ionic bond
B. A Metallic bond
C. A Double bond
D. A Covalent bond

Answers

Answer 1
Answer: A) ionic bond.......
Answer 2
Answer:

The answer is A. An ionic bond.

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What type of reaction produces a metal from its metal oxide
Greenhouse gases absorb radiation from the
How many grams are in 4.5 moles of Li2O?
Describe the main diffrence between the bohr model of the atom and the rutherford model
How many moles of H2O are there in 1.0 g of H2O?

Which of the following mixture types is characterized by the settling of particles?a. solution
b. suspension
c. colloid
d. hydrate

Answers

The answer is B. Suspension. Suspension mixtures are composed of two or more materials mixed together wherein the solute particles are usually larger than those found in a solution or colloid. In cases of solid-fluid suspension mixtures, the solid solute particles tend to settle at the bottom of the mixture after some time.

How did Diocletian try to improve Rome’s economy

Answers

He divided the empire into provinces. 

A liquid boils when its vapor pressure equals the pressure of the atmosphere.TRUE

FALSE

Answers

The answer is true. A liquid boils when its vapor pressure equals the pressure of the atmosphere. At this point, vapor can now readily escape from the liquid phase because it has an equal pressure now with its surrounding which, basically, is in the vapor phase.

Answer:

True

Explanation:

The boiling point of a liquid is the temperature at which the vapour pressure of the liquid equals the pressure of the surrounding atmosphere.

When a liquid is heated, the vapour pressure gradually increases till it matches the ambient pressure. Gas bubbles begin to form within the liquid, rise to the surface and then burst up to release gas. At this point, we say the liquid is boiling.

The lower the surrounding pressure, the lower the boiling point of a liquid and vice versa. Water boils at lower temperature in high altitudes because of lower pressure as compared to sea level.

Correct option: True.

Which is an example of a chemical change?mixing of poster colors
formation of clouds
metal corroding in salt water
sugar dissolving in water
separating salt from seawater

Answers

metal corroding in salt water corrosion is a chemical change

Answer:  C.  metal corroding in salt water

Explanation:

The modern atomic model is also sometimes called the __________ model.a. solar system
b. Bohr
c. plum pudding
d. quantum mechanics

Answers

The correct answer is B. The modern atomic model is also sometimes called the Bohr model. This model was introduced by Niels Bohr in 1913. According to this model, an atom is a small, positively charged nucleus which is surrounded by negatively charged particles called electrons.

The answer is B. Bohr

What powers explosions and fire

Answers

Almost always oxidation,
the speed of the reaction is the big difference between fire and explosions
(and slower yet - the "respiration" reactions that keep you alive).
Other Questions
What is the electron configuration for helium (He)?A. 1s1B. 1s2C. 1s22s1D. 1s22s2
Which nuclear emission is negatively charged?(1) an alpha particle (2) a beta particle (3) a neutron (4) a positron
Which of the following is not a type of basic structure for a pure metal?
For each molecule, what should be determined? A) Number of pi bonds and if they are delocalized. B) Number of sigma bonds and if they are localized. C) Number of hydrogen bonds and if they are polarized. D) Number of covalent bonds and if they are ionic.