why have some elements been known longer than others? why was it easier to find these elements such as gold, silver, and copper?

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Related Questions

Question 1 (1 point) In this analogy, adding more students is analogous to: Question 1 options: Decreasing the volume of the reaction container. Adding more particles of reactants. Adding a chemical catalyst. Increasing the temperature of the reaction. Question 2 (1 point) In this analogy, shrinking the hallways is analogous to: Question 2 options: Decreasing the volume of the reaction container. Adding more particles of reactants. Adding a chemical catalyst. Increasing the temperature of the reaction. Question 3 (1 point) chemical catalyst helps change the rate of a chemical reaction by Question 3 options: Adding more reactants Decreasing the activation energy Increasing the activation energy Adding more products Question 4 (1 point) In this analogy, shortening the passing periods is analogous to: Question 4 options: Decreasing the volume of the reaction container. Adding more particles of reactants. Adding a chemical catalyst. Increasing the temperature of the reaction. Question 5 (1 point) In this analogy, hiring a matchmaker is analogous to: Question 5 options: Decreasing the volume of the reaction container. Adding more particles of reactants. Adding a chemical catalyst. Increasing the temperature of the reaction. Question 6 (1 point) What are two conditions that must be met in order for a chemical reaction to take place? Question 6 options: Collisions with the proper orientation Sufficient activation energy Appropriate coefficient of friction Both A and B Both B and C
6 At STP, which element is a good conductor of electricity?(1) chlorine (3) silver(2) iodine (4) sulfur
Indicate one use of Nuclear fission,Nuclear fussion ,Half-life of a nuclide
Which activity is the best demonstration of J. J. Thomson’s use of creativity in his work?
If 20 milliliters of 4.0 M NaOH is exactly neutralized by 20 milliliters of HCL, the molarity of the HCL is

The orderly geometric arrangement of atoms is called a crystalline solid. a. True
b. False

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True
A) This fact is always true

Why are cells small?

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Because if a cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume.
They are also small so they can maximize the ratio of surface area to volume. Smaller cells have a higher ratio which allows more molecules and ions move across the cell membrane per unit of cytoplasmic volume.

basically cells are small because they need to be able to get the nutrients in and waste out quickly.

Answer:

you know what i really dont know but imagine if they were huge

Explanation:

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

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The correct answer is option 3. A real gas behaves least like an ideal gas under the conditions of high temperature and low pressure. At this temperature and pressure, the molecules are close to each other and collisions or interactions are very likely to happen which is not an ideal gas.

Why can't you turn pancakes back into the ingredients

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Answer:

With pancakes, the chemical reaction is between a leavening agent – such as baking soda & baking powder – & an acidic ingredient – such as buttermilk – producing tiny bubbles of carbon dioxide gas. These bubble form throughout the pancake, and are trapped as the batter cooks and solidifies

Explanation:

since there is a chemical reaction the pancakes cant be changed back into the ingredients after done.

Answer:

heat is added making it a chemical change

Explanation:

Which term describes the small regions where adjacent atoms that have magnetic fields line up with their magnetic field oriented in the same direction in metals, such as cobalt?a. force fields
b. magnetic centers
c. domains
d. poles

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Answer:

The correct answer is c. domains

Explanation:

In terms of Chemistry, there is a concept called the electron domain and it has to do with the number of lone pairs or bond locations that are located around a particular atom in a molecule. The electron domains are also called the electron groups.

the answer is C domains i hope this helps you i hope i am brainliest i need it

What is the oxidation number for sodium?A
2-
B
1+
C
2+
D
1-

Answers

Answer:

B.) 1+

Explanation:

To obtain a full outer electron shell, sodium must lose one electron, leaving it with a plus one charge.

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To show the electron configuration for an atom, what is the advantage of using an orbital notation compared to a dot structure?