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3 years ago

The direct transfer of heat from one substance to another substance that it is touching is called

Chemistry

2 answers:

Oksanka [162]3 years ago

6 0

Thermal energy is the direct transfer of heat from one substance to another

Allushta [10]3 years ago

5 0

The correct answer is conduction because you are conducting the heat through something like a finger etc.

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Law of Universal Gravitation (what factors affect gravity and how?)

olya-2409 [2.1K]

Explanation:

Hey there!

According to the law of gravitation, the factors that affects the gravity are:

Mass of the heavenly bodies.
Distance from the centre of the body to next body.

Mass of heavenly bodies:The mass of heavenly bodies affect the gravity. We know that gravity is directly proportional to the mass of heavenly bodies. so, when the mass is more there is more gravity and where there is less mass there is less gravity.

Distance from the centre of the body to next body: It is one of the factor to influence gravity. When there is more distance there is less gravity and where there is distance more force is there. Is means gravity is inversely proportional to the distance between the bodies.

Hope it helps...

7 0

3 years ago

How many moles of magnesium nitrate are in 6.35 grams of magnesium nitrate?

timofeeve [1]

Answer:

0.0428 moles

Explanation:

6.35 g Mg(NO3)2 ×

$\frac{1 \: mol}{148.32 \: g}$

6.35 g / 148.32 g

0.0428 moles

8 0

3 years ago

How would a geologist use absolute dating to determine the age of sedimentary layer?

Sati [7]

Answer:

They can be dated using radioactive carbon. But for rocks older than 50 thousand years they look for layers of igneous rock or volcanic ash above and Bellow the layer of rock/fossil.

6 0

3 years ago

Read 2 more answers

Various methods of aquaculture can be used to grow species of marine fish. Consider the figure below, which shows one way that a

pav-90 [236]

An open system is one where mass is able to flow in and out of the system. The mass entering this system is the water that is added to the fish tank, and the leaving mass is the waste that is generated.

8 0

3 years ago

Read 2 more answers

List three halogens, and describe a property that they all share

iragen [17]

Answer:

Three halogens:

Fluorine, chlorine, bromine.

Explanation:

Halogens are present in group seventeen of periodic table.

Their are five elements in this group fluorine, chlorine, bromine, iodine, astatine.

Three halogens:

Fluorine, chlorine, bromine.

All these share common properties such as,

All of these have seven valance electrons.

When combine with hydrogen they form acids.

H₂ + Cl₂ → 2HCl

All of these are toxic in nature.

They are highly electronegative and most reactive elements.

When combine with metals they form salts such as sodium chloride, magnesium bromide.

2Na + Cl₂ → 2NaCl

2Na + Br₂ → 2NaBr

Mg + Br₂ → MgBr₂

Mg + Cl₂ → MgCl₂

7 0

4 years ago