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Serjik [45]
3 years ago
11

This science of classifying organisms is called?

Chemistry
1 answer:
Vesnalui [34]3 years ago
8 0
Botany is the study of plants. Study of classifying organisms is taxonomy.
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true or false an element's reactivity is determined by the number of protons found in an atom of the element
andreyandreev [35.5K]
False... The number of electrons in the outer shell of the atom of the element determines it's reactivity. <span />
3 0
2 years ago
In the winter , people often buy large bags of rock salt to sprinkle on their walkways . Why do people do this?
slamgirl [31]

The salt causes the water to freeze at a lower temperature. When a solute, aka salt, is introduced to the system, the freezing point is lowered. This makes the water freeze at a lower temperature.

6 0
3 years ago
A piece of mental with a mass of 106 g is placed in a 50 mL graduated cylinder.The volume rises from 20 mL to 31 mL. What is the
garik1379 [7]

Answer:

9.64g/mL

Explanation:

Given parameters:

Mass of the metal  = 106g

Volume of cylinder = 50mL

Volume difference  = 31mL  - 20mL  = 11mL

Unknown:

Density of the metal  = ?

Solution:

To find the density of the metal, we use;

 Density  = \frac{mass}{volume}  

 Density  = \frac{106}{11}   = 9.64g/mL

8 0
2 years ago
J5 protons and 74 electrons
Brrunno [24]

Answer:

ins the same

Explanation:

neutrons have no charge

8 0
3 years ago
The number of atoms in 2 moles of aluminium is if the 1mole is 6.022*10 the power of 23 or 10^23
patriot [66]

Answer:

1.204 × 10²⁴ atoms

Explanation:

According to this question, one mole of aluminum (Al) atom contains 6.02 × 10²³ atoms.

If two moles of aluminum are given, this means that there will be 2 × 6.02 × 10²³ atoms of aluminum

2 × 6.02 × 10²3

= 12.04 × 10²³

= 1.204 × 10²⁴ atoms.

3 0
2 years ago
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