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3 years ago

Match the celestial bodies with their descriptions.

Chemistry

2 answers:

BartSMP [9]3 years ago

6 0

A)an object from space burning up as it enters the atmosphere of a planet

melamori03 [73]3 years ago

5 0

An object from space burning up as
it enters the atmosphere of a planet: Meteor

A small body in space, usually composed
of rock or metal: Asteroid

An object from space that falls to the
surface of a planet without completely
burning up: Meteorite

A body made mostly of ice and dust
that leaves a trail of dust known as
a tail as it approaches the Sun: Comet

Enjoy!

You might be interested in

Which distinguishes chemical changes from physical changes?

7nadin3 [17]

Answer:

In a chemical reaction, there is a change in the composition of the substances; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a change in composition.

Explanation:

7 0

3 years ago

If 1.9 kJ of heat is transferred to 96 g aluminum at 113°C, what would the

erastova [34]

Answer:

T2 = 135.1°C

Explanation:

Given data:

Mass of water = 96 g

Initial temperature = 113°C

Final temperature = ?

Amount of energy transfer = 1.9 Kj (1.9×1000 = 1900 j)

Specific heat capacity of aluminium = 0.897 j/g.°C

Solution:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = T2 - T1

Now we will put the values in formula.

Q = m.c. ΔT

1900 j = 96 g × 0.897 j/g.°C × T2 - 113°C

1900 j = 86.112 j/°C × T2 - 113°C

1900 j / 86.112 j/°C = T2 - 113°C

22.1°C + 113°C = T2

T2 = 135.1°C

4 0

4 years ago

The heat generated from the explosion is absorbed by the building and increases the temperature of the building. the property th

Brut [27]

Answer:Heat is a type of ENERGY. When absorbed by a substance, heat causes inter-particle bonds to weaken and break which leads to a change of state (solid to liquid for example). Heat causing a phase change is NOT sufficient to cause an increase in temperature.

Explanation:

7 0

1 year ago

Which of the following best explains why J.J. Thompson's Plum Pudding model had to be revised?

QveST [7]

I think the correct answer is B. J.J. Thompson's Plum Pudding model had to be revised because atoms have protons and neutrons in the nucleus. He realized that aside from the electrons which are negatively charged, positive charge particles should be present to neutralize the charge of an atom.

7 0

3 years ago

Calculate the mass in grams of 3. 29 x 104 mol of lithium Help please?

Sedaia [141]

Answer 

no. of moles =

 $\frac{mass \: {g} \: }{ \: molecular \: wight}$ 

so, mass (g)= no. of moles × molecular wight

Explanation:

Li molecular wight equal to 6.941

mass (g)=3.29×104 mol ×6.941 =2374.93g of lithium 

3 0

3 years ago