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nikklg [1K]
3 years ago
15

Why are rocks not alive

Chemistry
2 answers:
Liula [17]3 years ago
5 0

What Are Living Rocks? Rocks themselves are not alive. But in a coral reef rock-like lime substance is continually produced from the skeletons of dead rock corals and the shells of mussels and other creatures which are bound together by sponges and calcareous algae.

but tbh I have no idea lol!

Ivanshal [37]3 years ago
3 0
Rocks aren’t alive because there almost like fossils and rocks are also part sand , they break down and spread but that doesn’t mean there alive
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Near Tatooine's famous Mos Eisley Space port you found a 520.79 mL block of gold. What is the mass in kilograms of this block?
postnew [5]

Answer:

10.051kg of gold is the mass in kilograms

Explanation:

The density of gold is 19.3g/mL. To solve this question we need to convert the volume of the block of gold to grams using its density. Then, we must convert grams to kilograms using the equivalence factor (1000g = 1kg):

<em>Mass in grams:</em>

520.79mL * (19.3g / mL) = 10051g of gold

<em>Mass in kilograms:</em>

10051g of gold * (1kg / 1000g) = 10.051kg of gold

3 0
3 years ago
Why Fr is the most reactive metal ?​
Ivenika [448]

Answer:

Francium is hypothesized to be the most reactive metal, but so little of it exists or can be synthesized, and the longest half-life of its most abundant isotope is  

22.00

minutes, so that its reactivity cannot be determined experimentally.

Explanation:

Francium is an alkali metal in group 1/IA. All alkali metals have one valence electron. As you go down the group, the number of electron energy levels increases – lithium has two, sodium has three, etc..., as indicated by the period number. The result is that the outermost electron gets further from the nucleus. The attraction from the positive nucleus to the negative electron is less. This makes it easier to remove the electron and makes the atom more reactive.

Experimentally speaking, cesium (caesium) is the most reactive metal.

3 0
2 years ago
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A student measures a cube composed of an unknown substance. The mass was determined to be 112.8 g, and the volume 63 cm3. What i
irina [24]

Answer:

D

Explanation:

The formula to find the density of an object is mass/volume. You know the mass in this problem is 112.8 grams, and the volume is 63 cm^3. Now you can plug this information into the density formula as 112.8/63, which is about 1.8. Now you just add the cm^3/g and you have your answer.

4 0
3 years ago
What is the density of aluminum in grams per cubic centimeter?
oksano4ka [1.4K]

Answer:

Density of aluminum is 2.699 g/cm^3

Explanation:

Density of a given material can be defined as the mass of the substance present in a unit volume. Mathematically it can be expressed as:

Density = \frac{Mass}{Volume}

Units: g/cm^3 or kg/m^3

Aluminum (Al) is one the lightest element and is known to have a density of 2.699 g/cm^3

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3 years ago
If the plum pudding model of the atom was correct, what should the results of Rutherford’s experiment be?
shusha [124]

Answer:most of the positively charge particles should be bounce back at a range of angles as they collide with the atoms in the foil; only a few should pass straight through the foil

Explanation:

6 0
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