Why can liquid metal be poured into a block-shaped mold?Describe what happens to the shape and volume of the liquid
metal.
Answers
Answer:
yes
Explanation:
because
Related Questions
How do you study well for a chemistry test?
Mercury has a specific gravity of 13.6. how many milliliters of mercury have a mass of 0.35 kg
Define mechanical energy
Hess's law ____. A) makes it possible to calculate ΔH for complicated chemical reactions B) states that when you reverse a chemical equation, the sign of ΔH does not change. C) determines the way a calorimeter works D) describes the vaporization of solids
[H2] = 0.208 M, [S2] = 1.13 × 10-6 M , [H2S] = 0.725 M
A) 1.08 × 107
B) 3.49
C)4.55 × 10-7
D)3.22 × 106
E)441
Answers
First, we write the equilibrium expression.
K = [H2S]^2 / [H2]^2 x [S2]
K = (0.725^2) / [(0.208^2) (1.13 x 10^-6)]
K = 10751545.56 or 1.08 x 10^7
Thus, the answer is A.
Answers
Answer is: another name for groups of elements is family.
There are 18 numbered groups in the periodic table.
The elements in a group have similar physical or chemical characteristics and some groups have a specific name, for example group 17 (the halogens).
Elements in the group have the same number of valence electrons, for example, chemical elements in group 15 of the periodic table have neutral atom with a valence electron configuration of ns²np³.
Final answer:
In Chemistry, groups of elements are often referred to as families or groups.
Explanation:
In Chemistry, groups of elements are often referred to as families or groups. These groups are organized based on similar properties and characteristics. For example, the alkali metals (group 1) and the halogens (group 17) are two well-known families of elements.
Learn more about Groups of elements here:
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Answers
If you go to the periodic table, the Molar Mass of the Sodium Na is 23g/mol
Second Step, you convert from grams to moles.
number of Mole = mass of sodium / molar mass =
Third Step, you find the number of atoms.
As We know, Avogadro said that the number of atoms in 1 mole is about
You use the Rule of three and you find the number of atoms!
1 mole =
2 mole = x atomes
x = 2 * (
x=
So, there is
Hope this Helps! :D
46g = 456/2 = 2mol
1mol = 6.022*10^23 atoms
2mol = 2*6.022*10623
= 1.204*10^24 atoms
a. True
b. False
Answers
Answer:
The answer is: a. True.
Explanation:
Mass and weight are different properties, which are defined in the field of physics.Mass is a measure of the amount of matter that a body possesseswhile weight is a measure of the force that is caused on the body, by the gravitational field of another.
The balance is an instrument used to measure the mass of objects.
The answer is: a. True.
b. CO2
c. H2
d. H2O
Answers
Chlorine gas is toxic gas. Upon inhalation, it irritates the pulmonary tract and damages the respiratory tract. Both short term and long term exposure to Cl2 gas are known to have destructive effects.
require the United States to
(1) become involved in future international
conflicts
(2) pay for war damages
(3) adopt a policy of military alliances
(4) keep troops permanently in Europe
Answers
The Treaty of Versailles would require the United States to become involved in future international conflicts.
- The Treaty of Versailles was signed to end World War I in 1919.
- The treaty also became a peace treaty presented by the Allied (France, Britain and the United States).
- The opponents of the Treaty of Versailles, like, Germany oppose America involvement in Europe.
- They believed that America, being disconnected geographically by the ocean, has no right to interfere.
- When the United States had entered the war, the Germans protested.
Therefore we can conclude that Germans oppose America involvement in future international conflicts.
Thus option 1. is the correct answer.
Learn more about "the Treaty of Versailles" here: