Why does an egg sink in fresh water but float in salt water??

Answers

Answer 1

Answer: If an object is less dense than the water around it, it will float. Because salt water is denser than freshwater, some things float more easily in the ocean—or extremely salty bodies of the water, such as the Dead Sea. You can make your own dense water by adding salt to tap water.

Related Questions

In addition to the six elements most prevalent in living things there are other elements that are required for human life. Which element is necessary for humans to maintain a strong skeletal system?A. xenon B. calcium C. rhodium D. chlorine
How would an electron shell model of an oxygen atom (O) appear after the atom has formed chemical bonds?a. It would have six electrons in the outermost shell. b. It would have six electrons in the innermost shell. c. It would have eight electrons in the outermost shell. d. It would have eight electrons in the innermost shell.
What two-step process separated the cans into aluminum, steel, and tin?
As you go down the periodic table, the atomic radius of elements do what?
Which barium salt is insoluble in water?A) BaCO3. B) BaCl2 C) Ba(ClO4)2. D) Ba(NO3)2

What is the process called that living things perform to make useable energy fromsugar?

-photosynthesis
-exercise
-heterotrophs
-cellular Respiration

Answers

Cellular respiration is the correct answer (:

Answer:

cellular respiration

Explanation:

Organisms ingest large molecules, like carbohydrates, proteins, and fats, and convert them into smaller molecules like carbon dioxide and water. This process is called cellular respiration, a form of catabolism, and makes energy available for the cell to use.

How can a redox reaction be used as a source of electrical energy?

Answers

A redox reaction be used as a source of electrical energy only when two half-reactions are physically separated. The electrons that are released at the anode flow through the wire, producing an electric current. Galvanic cells therefore transform chemical energy into electrical energy that can then be used to do work.

Explanation:

Electrical energy is the energy produced due to flow of electrons.

Whereas a reaction in which oxidation and reduction reaction takes place is known as a redox reaction. Basically, there is exchange of electrons that take place in a redox reaction.

For example, $H_(2) + F_(2) \rightarrow 2HF$

Oxidation half reaction: $H_(2) \rightarrow 2H^(+) + 2e^(-)$

Reduction half reaction: $F_(2) + 2e^(-) \rightarrow 2F^(-)$

Hence, this flow of electrons acts as a source of electrical energy.

PLS HELP ILL MAKE BRAINLIEST 30 POINTS!!Which parts of the muscular and skeletal system work together to move muscles and bones? nerves esophagus and intestine arteries and vessels tendons and ligaments

Answers

Answer:

tendons and ligaments

50 POINTS Match each item with the correct statement below:

1.) The fact that matter can be neither created nor destroyed in a chemical change.
2.) Substance that changes to a gas easily at room temperature.
3.) Any chemical reaction that absorbs energy.
4.) Can be observed only when there is a change in composition of a substance.
5.) Any chemical reaction that gives off energy.
6.) The amount of matter contained in a unit of volume.
7.) The type of change in which the identity of substances does not change.
8.) The change of one or more substances into other substances.
9.) Can be observed without any change in the identity of the substance.
10.) Another term for chemical change.

chemical property
physical change
physical property
chemical change
density
law of conservation of mass
chemical reaction
volatile
endothermic
exothermic
energy

Answers

Answer:

1) law of conservation of mass

2) volatile

3) endothermic

4) chemical property

5) exothermic

6) density

7) physical change

8) chemical change

9) physical property

10) chemical reaction

Would precipitation occur when 500 mL of a 0.02M solution of AgNO3 is mixed with 500 mL of a 0.001M solution of NaCl? Show your work.

Answers

We know,
AgNO3 + NaCl ⇒ NaNO3 + AgCl(s)
The moles of Na+ present:
0.5 L * 0.001 mol/L
= 5 x 10⁻⁴ mol
Moles of Ag+ present:
0.5 * 0.02
= 0.01 mol
The limiting reactant is Na
Therefore, the moles of Ag reacted:
5 x 10⁻⁴
AgCl is insoluble in water; therefore, the AgCl formed will precipitate

What is the change in temperature in a 128g sample of titanium if it absorbs 2808J of heat energy at a temperature of 2°C? The specific heat of titanium is 0.523J/ g °c.