Help Please earth science

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Answer 1

Answer:

Use the image to determine which of the following statements is true?

1) The granite is younger than unit B.2) Unit B and the granite are the same age.3) The relative ages of teh granite and unit B cannot be determined from the information given.4) Unit B is younger than the granite.

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What element forms a compound with chlorine with the general formula MCl?
The bond formed from electrons that are transferred is a(n) ionic bond hydrogen bond covalent bond
Which formula represents a nonpolar molecule?(1) HCl (3) NH3(2) H2O (4) CH4
At standard pressure when NaCl is added to water,the solution will have a

In what respect does an atom of magnesium differ from a magnesium ion (Mg^{2+})? (A)The ion has a more stable electronic arrangement than the atom.
(B)The positive charge on the nucleus of the ion is two units greater than the nuclear charge on the atom.
(C)The ion has two more protons than the atom.
(D)The ion will react more readily with free Cl₂.
(E)The ion has two more planetary electrons than the atom.
Can anyone explain this one?

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both b and d are correct however the ion reacts more readily to a number of different elements. not just Cl2 so the best correct answer is b: the positive charge on the nucleus of the ion us two units greater than the nuclear charge on the atom.

Which of the following is not a type of basic structure for a pure metal?

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Okay well we do not have the attachment

The first periodic table developed by Mendeleev was not completely accurate, but was a great step toward accomplishing the periodic table of elements we use today. Explain how the modern periodic table is credible today because of Mendeleev’s work.

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The answer is: elements in the same group of periodic system have similar properties.

Dmitri Mendeleev published a periodic table of the chemical elements in 1869.

Mendeleev noted gaps in the table and predicted then undiscovered elements existed eka-silicon (germanium) and eka-boron (scandium).

For example, germanium discovered in 1886 and it had proporties as Mendeleev predicted.

There are 118 unique substances (elements) arranged on an amazing chart that reveals their hidden secrets to anyone who knows how to read it.

The first chemical element is hydrogen (atomic number is 1) and the last is oganesson (atomic number is 118).

Elements are scheduled in periodic table, ordered by their atomic number.

His periodic table provided everyone with the idea that elements should be arranged by the increasing order of their fundamental properties. It was later discovered that atomic number IS the fundamental property

Explain why a solution can have many solutes, but only one solvent.

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A solution is a homogenous mixture of substances with variable composition. The substance present in the major proportion is called the solvent, whereas the substance present in the minor proportion is called the solute. It is possible to have solutions composed of several solutes. The process of a solute dissolving in a solute is called dissolution.

Many common mixtures (like concrete) are heterogeneous —the components and properties of such mixtures are not distributed uniformly throughout their structures. Conversely, solutions are said to be homogeneous because they have uniform composition and properties. Solutions are intimate and random homogeneous mixtures of atomic-size chemical species, ions, or molecules.

The solvent is the most abundant substance in a solution. In a 51/49 mixture of water and alcohol, water is the solvent whereas in a 49/51 mixture, alcohol is the solvent.

I am in desperate need of help will give 40 points to whoever helps me!!!!! I have a quiz tomorrow but I have no idea how to do these practice problems. I know u have to use the boiling and freezing pint formula but i don't know how to plug them in because these problems all look different and asks for different things

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All of the questions here are pertaining to the colligative properties of a solution and the preparation of solutions. Maybe, it would be best if you understand the equations to be used in order to answer these questions.
Freezing point depression or Boiling point elevation:

ΔT = -K (m) (i)

ΔT is the change in the freezing point or the boiling point not the freezing point/boiling point. Therefore, it should be added to the original value of the property of the solvent.

K is a constant called the molal freezing point depression constant and for the boiling point is the boiling point elevation constant. It is a property of the solvent.

m is the concentration of the solute in the solvent in terms of molality or kg solute/kg solvent.

i is the vant hoff factor which will represent the number of ions which the solute dissociates when in solution.

The transfer of a section of Dna from one organism into the Dna of another organism by scientists is called

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Genetic Modification

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Particles are arranged in a crystal structure in a sample of:a) H2 (g)b) Br2 (L)c) Ar (g)d) Ag (s)

Rank the four gases (air, exhaled air, gas produced from from decomposition of H2O2, gas from decomposition of NaHCO3) in order of increasing concentration of oxygen).

A real gas behaves least like an ideal gas under the conditions of(1) low temperature and low pressure (2) low temperature and high pressure (3) high temperature and low pressure (4) high temperature and high pressure

Except for oxygen what is another name for a burning reaction?