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Mekhanik [1.2K]
3 years ago
7

Please help me I will give you 10 points​

Chemistry
1 answer:
Vaselesa [24]3 years ago
5 0

Answer:

red ig

Explanation:

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HCl + NaOH mc004-1.jpg NaCl + H2O Which substances are the reactants?
LiRa [457]
It depends on where your yields sign is, but usually it's the elements/ compounds in the front. In this case, HCL and NaOH
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3 years ago
How many magnesium atoms are contained in 3.75 moles of magnesium?
Katarina [22]
In 1 mole of magnesium there are Avogadro's number of atoms are present.
Avogadro's number = 6.023 x 10²³ 
1 mole = 6.023 x 10²³ atoms
3.75 moles = 3.75 x 6.023 x 10²³ 
=2.26 x 10²⁴
So, in 3.75 moles of magnesium there are 2.26 x 10²⁴ atoms of magnesium are present.
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3 years ago
Please help I need to know this information in paragraph form I'll give brainiest and 99 points
Pani-rosa [81]
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3 years ago
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A block of metal has a width of 3.2 cm , a length of 17.1 cm , and height of 4.6 cm . Its mass is 1.4 kg . Calculate the density
dsp73

The Density of  the metal  is 5.6 g/cm³

<h3>What is the density of a substance?</h3>

The density of a substance is the ratio of the mass and the volume of the substance.

  • Density = mass/volume


The density of the metal is calculated as follows:

mass of metal = 1.4 kg = 1400 g

volume of metal = 3.2 * 17.1 * 4.6 = 251.712 cm³

Density of metal = 1400 g/251.712 cm³

Density of the metal  = 5.6 g/cm³

Therefore, the density of the metal is obtained from the mass and the volume of the metal.

Learn more about density at: brainly.com/question/1354972

#SPJ1

3 0
2 years ago
What are the two elements sand is made of? *
olga55 [171]

Answer:

tiny crystals of the mineral quartz, which is made out of silica and oxygen

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3 years ago
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