Patience, a popular card game in Mendeleev's time, is also known asSolitaire.
O
A. True
O
B. False

Answers

Answer 1

Answer:

True

Explanation:

The statement that patience, a popular card game in Mendeleev's time is also know as solitaire is very true. It was this card game that led to the discovery of the periodic table by Mendeleev in the 19th century.

In Europe, the game is called Patience. It is commonly called solitaire in in North America.
It involves the arrangement of a deck of cards.
The game inspired the invention of the periodic arrangement of elements by Russian Chemist, Dmitri Mendeleev.
Solitaire was popular card game around the time of this discovery.

Learn more:

periodic table brainly.com/question/8543126

periodic trends brainly.com/question/1971327

#learnwithBrainly

Answer 2

Answer:

Answer: false

Explanation:

I hit true on the quiz and it was wrong

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Why do scientist use models to study atoms

Answers

Models are used to study atoms because we can never really see an atom up close, and a model is like a super magnified version of the atom. Plus, its easier to study from them because we can pin point the different characteristics of the atom (Protons, Neutrons, etc.)

Scientist use models to study atoms because you cannot either see or perceive directly what do atoms look like.

Models permit to explain in a simplified way how the atoms are constituted, and, so, figure out how they behave and how they are the bulding blocks of the matter (elements and compounds).

A model can be a drawing or structure with balls and sticks, which show in an idealized way what an atom is.

Since the scientists have discovered different facts about the atoms along the last 200 years the models of the atoms have also evolved.

The plum pudding model of the atom proposed by JJ Thompson was different of the nuclear model proposed by Rutherford, and Rutherford's was different from the planetary model proposed by Bohr, and this is different from the quantum model.

Beverly and Carl are in a race. Their graphs show the data Which best describes the race?A. Even though for a majority of the race they accelerated at the same rate, Carl won because his initial acceleration was greater than Beverly’s
B. Even though for a majority of the race they accelerated at the same rate, Beverly won because her initial acceleration was greater than Carl’s.
C.Beverly accelerated at a greater rate for the entire race.
D. Carl accelerated at a greater rate for the entire race

Answers

The correct option is B.

Acceleration is defined as the rate of velocity of a body per unit time; that is, acceleration is given by the ratio of velocity and time. Looking at the graph given above, it can be seen that, the two runners started with different initial velocity; Beverly started with the initial velocity of 15 m/s while Carl started with the initial velocity of 10 m/s. For the rest of the race, the two runners maintains similar acceleration but Beverly won because her initial velocity was higher.

The correct answer is B
i just finished the test. hope this helps

Describe two ways that thermal energy transfer in earth changes the land

Answers

There are three methods of thermal energy transfer: conduction, convection, and radiation. Air molecules that come into contact with the warmer land and surface of the oceans and lakes increase their thermal energy through conduction.

a ball is rolling across the floor.How could you apply an unbalanced force to change the speed or direction of the ball?

Answers

Usually a ball would roll toward the side that's lower, so if you had a ramp and put it on the side that was lower, then the ball would change direction and go the opposite direction

Kick the ball! The force of the kick likely isn't the same amount of force acting on the ball as it's rolling, so as long as the kick makes the ball go faster (or slower) than it had been, that force is unbalanced

If a solution A has twice as much solute as solution B. Is it possible for the solutions to have the same concentration?

Answers

Yes, if solution B has double the mass of solution A.

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What kind of ions do metals form

Answers

Answer: cations

Explanation:

Metals are defined as the elements which loose electrons to attain stable electronic configuration. If an atom looses electrons, it leads to the formation of positive ions known as cations.

For Example: Sodium looses 1 electron to form $Na^+$ ions.

Non-metals are defined as the elements which gain electrons to attain stable electronic configuration. If an atom gains electrons, it leads to the formation of negative ions known as anions.

For Example: Fluorine gains 1 electron to form $F^-$ ions.