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3 years ago

What type of animal might become preserved in amber

Chemistry

1 answer:

goldfiish [28.3K]3 years ago

6 0

Insect's or Bugs preserved in Amber

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9.63 Km is the equivalent to 9,630 m. <br><br>True. or False

Karo-lina-s [1.5K]

Answer:

9.63 Km is the equivalent to 9,630 m.

9.63 Km is the equivalent to 9,630 m. TRUE

7 0

3 years ago

A fluid occupying has a mass of 4mg. Calculate its density and specific volume in SI, EE, and BG units.

kondaur [170]

The question is incomplete, complete question is:

A fluid occupying $3.2 m^3$ of volume has a mass of 4 Mg. Calculate its density and specific volume in SI, EE, and BG units.

Explanation:

1) Mass of liquid = m = 4 Mg = 4 × 1,000 kg = 4,000 kg

(1 Mg = 1000 kg)

Volume of the fluid = V = $3.2 m^3$

Density of the fluid = D

$D=\frac{m}{V}=\frac{4,000 kg}{3.2 m^3}=1,250 kg/m^3$

Specific volume is the reciprocal of the density :

$V_{specific}=\frac{1}{Density}$

Specific volume of the fluid = $S_v$

$S_v=\frac{1}{D}=\frac{1}{1,250 kg/m^3}=0.0008 m^3/kg$

Density of the fluid in English Engineering units = D $(lb/ft^3)$

1 kg = 2.20462 lb

1 m = 3.280 ft

$D=\frac[1,250\times 2.20462 lb}{(3.280 ft)^3=78.95 lb/ft^3$

Specific volume of the fluid :

$=\frac{1}{78.95 lb/ft^3}=0.0127 ft^3/lb$

Density of the fluid in British Gravitational System units = D $(slug/ft^3)$

1 kg = 0.06852 slug

1 m = 3.280 ft

$D=\frac[1,250\times 0.0685218 slug}{(3.280 ft)^3=2.43 slug/ft^3$

Specific volume of the fluid :

$=\frac{1}{2.43 slug/ft^3}=0.412 ft^3/slug$

7 0

3 years ago

What is the name of the energy needed to change the structure of matter

anyanavicka [17]

Answer:

Heat fusion

Explanation:

The energy required to change a solid to a liquid is called the heat of fusion.

4 0

2 years ago

Yvette mixed together water with calcium chloride in a beaker. She noticed that the temperature changed from 21oC to 37oC. She a

Rufina [12.5K]

Answer:

The temperature changed

5 0

2 years ago

substance formed of crystals of equal numbers of cations and anions held together by ionic bonds is called a(n) _____.

Rufina [12.5K]

Answer:Salt

Explanation:

In chemistry a salt is produced from a neutralization reaction, when an acid react with a base.

HCl(aq) + NaOH (aq) ----> NaCl (aq) + H2O(l)

A salt consists of the positive ion (cation) of an acid and the negative ion (anion) of a base.

H+(aq) + Cl-(aq) + Na+(aq) + OH-(aq) -------> Na+Cl-(aq) + H2O(l)

When the water is evaporated, the negatively charged chlorine ions combine with the positively charged sodium ions to form a solid salt.

3 0

3 years ago