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3 years ago

Answer all questions please and be quick, it’s very URGENT U will get BRAINLY

Chemistry

1 answer:

HACTEHA [7]3 years ago

3 0

Explanation:

Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. ... Electric charge is carried by subatomic particles. In ordinary matter, negativecharge is carried by electrons, and positive charge is carried by the protons in the nuclei of atoms.

Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. There are two types of electric charge: positive and negative (commonly carried by protons and electrons respectively). Like charges repel and unlike attract. An object with an absence of net charge is referred to as neutral. Early knowledge of how charged substances interact is now called classical electrodynamics, and is still accurate for problems that do not require consideration of quantum effects.

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How many moles of sulfur are needed to react completely with 1.2 mol of O2?

valkas [14]

Quantity can always be used the same way as moles when interpreting balanced chemical equations.

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3 years ago

An atom that has lost or gained electrons is known as an ion.

rjkz [21]

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3 years ago

When an endothermic chemical reaction (the system) occurs inside a calorimeter containing water (the surroundings) and no heat e

Nostrana [21]

Answer:

b. Heat flows from the surroundings to the system and the temperature of the water decreases.

Explanation:

The laws of thermodynamics lets us know that energy is neither created nor destroyed but can be converted from one form to another. Also, energy transfer does accompany chemical reactions in the form of heat.

For an endothermic reaction, heat is absorbed by the system from the surroundings. This leads to a drop in the temperature of the surroundings as energy is removed.

This implies that the water temperature decreases.

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3 years ago

Are parts of the circulatory system .The , and

Sphinxa [80]

Answer:

The heart and the blood vessels are a part of the circulatory system. The blood vessels include the arteries, veins and capillaries. The lungs are considered to be the pulmonary part of the circulatory system. The heart is the cardiovascular part of the circulatory system and the vessels are the systemic part of the circulatory system. The main function of the circulatory system is to supply all parts of the body with oxygenated blood and to take away the deoxygenated blood from all parts of the body.

8 0

4 years ago

Which of the following equations represents Photosynthesis? 16CO2 + 6H2O -----> C6H12O6 + 6O22C6H12O6 + 6O2 -----> CO2 + 6

lidiya [134]

Answer:

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

Explanation:

Photosynthesis is the chemical process carried out by plants for the conversion of inorganic matter (carbon dioxide and water) into organic matter (glucose) with the release of oxygen, using light (sun energy).

So the chemical process may be represented by:

Word equation:

carbon dioxide + water + sun energy → glucose + oxygen

Skeleton equation:

CO₂ + H₂O + sun energy → C₆H₁₂O₆ + O₂

Balanced chemical equation:

6CO₂ + 6H₂O + sun energy → C₆H₁₂O₆ + 6O₂

Supressing the energy to show only the chemical compounds:

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

8 0

3 years ago