Physics Middle School

WILL GIVE BRAINLIEST!!!How many different elements are involved in the chemical reaction shown?


3


14


7


5

WILL GIVE BRAINLIEST!!!How Many Different Elements Are Involved In The Chemical Reaction Shown?31475

Answers

Answer 1
3 I think sorry if I’m wrong
Answer 2
Three is the answer cause ca calcium is one on its own two h2o that is two so all together it is three

Related Questions

a women runs 1 kilometers (1000 meters) with a force 210, and an output power of 500. how long does it take her to run 2 kilometers (2000 meters)?

Answers

Explanation:

woman runs a kilometer using a force of 210 N and a power output of 500 W. How long in minutes does it take this woman to complete 1 kilometer?

Beginning of dialog window. Escape will cancel and close the window. End of dialog window. Finally, we need to convert seconds to minutes: Time = 420 s × (1 min / 60 s) = 7 min So, it takes the woman 7 minutes to complete 1 kilometer.

PLEASE HELP THIS IS URGENT
Which of the following interacts the most with the water cycle?

A. Global wind and rain
B. The sun and rivers
C. Precipitation and Groundwater

Answers

Answer:
The correct answer is C

Explanation:

Precipitation is the key driver of the water cycle, as it is the source of all water on the planet. Groundwater is the water that exists below the ground, and it is an important component of the water cycle. The interaction between precipitation and groundwater is a crucial part of the water cycle, as groundwater reserves serve as a buffer for times when little precipitation is falling, like during prolonged droughts.

C.Precipitation and Groundwater

20 POINTSS!! Which of the following is an example of a container that is filled with a pure substance rather than with a mixture?


a glass filled with chocolate milk


a balloon filled with helium


a tire filled with air


a jar filled with salt water

Answers

Answer:

A balloon filled with helium. This is because helium is a pure substance/gas.

A chocolate milk is a mixture of different ingredients therefore it's not a pure substance

A tire filled iwth air is not correct because air is a mixture of other gases including little bit of carbon dioxide and other gases

A salt of wate is also a mixture as two different things has been added to make the salt solution.

The answer is a ballon filled with helium

describe the energy of the weight when its A)pulled back the furthest extent, B)at the bottom of the swing, C)at the highest point on the other side, and D) back at the original side

Answers

Answer and Explanation:
A) When the weight is pulled back to its furthest extent, the weight has the highest potential energy. This is because at this point, the weight is furthest away from the center of the earth, and so the potential energy due to gravity is maximized.

B) At the bottom of the swing, the weight has the lowest potential energy. This is because at this point, the weight is closest to the center of the earth, and so the potential energy due to gravity is minimized.

C) When the weight is at its highest point on the other side of the swing, the weight has the highest kinetic energy. This is because at this point, the weight has the highest velocity, and kinetic energy is proportional to the square of the velocity.

D) When the weight is back at its original side, the weight has zero kinetic energy. This is because at this point, the weight has come to a stop and is no longer moving. However, the weight still has a non-zero potential energy due to the force of gravity.

Answer:

Explanation:

Example ,The energy of a pendulum weight changes as it swings.

Here answers and explanations

A)When the weight is pulled back to the furthest extent, it has maximum potential energy and zero kinetic energy.

B)At the bottom of the swing, the weight has maximum kinetic energy and zero potential energy.

C)When the weight reaches the highest point on the other side, it has maximum potential energy and zero kinetic energy again.

D)As the weight swings back to the original side, it has the same energy as it did at the beginning, with some potential energy and some kinetic energy. Although the weight loses some energy due to friction and air resistance, its total energy should be conserved throughout the swing.

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