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Leno4ka [110]
3 years ago
7

Formula for Hydrocloric Acid.

Chemistry
1 answer:
Elden [556K]3 years ago
6 0
HCl is the formula for hydrocloric acid
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Whitepunk [10]
I think B
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4 0
3 years ago
A filament for a light bulb needs to conduct electricity. Which of the elements listed below might be useful as a light bulb fil
horrorfan [7]

Answer:

A. tungsten

Explanation:

Tungsten is a material which high melting point ie. does not melt easily incase of high temperature

8 0
3 years ago
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Describe what occurs to the particles of a substance when the substance melts. Explain why this occurs.
GuDViN [60]

Explanation:

As a substance melts, and goes from a solid to a liquid state, the kinetic energy of the molecules increases, and the molecules move faster, and they separate further and further away from each other. The intermolecluar forces holding the molecules together become weaker

7 0
2 years ago
Calcula la cantidad de gramos que hay en 12,5 mol de NaCl (Masa Na: 23,0; Cl: 35,5).
Anon25 [30]

Answer:

731.25 g

Explanation:

The question asks us to calculate the mass of 12.5 moles of NaCl. The individual relative atomic masses of the elements were supplied. We must first obtain the molar mass of sodium chloride as follows;

Molar mass of sodium chloride= 23.0 + 35.5 = 58.5 gmol-1

From the formula;

Number of moles (n) = mass /molar mass

Number of moles of sodium chloride= 12.5 moles

Mass of sodium = The unknown

Molar mass of sodium chloride= 58.5gmol-1

Mass of sodium chloride= number of moles × molar mass

Mass of sodium chloride= 12.5 × 58.5

Mass of sodium chloride= 731.25 g

4 0
3 years ago
What was a key discovery in the advancement me up early information transfer
Llana [10]

Answer:

The transfer was essential to understand the mutation and the possibility of new, more resistant strains in microorganisms.

Explanation:

the transfer of microorganisms is based on the transfer of genetic data through conductive pathways that penetrate the membranes, called pili or genetic bridges.

These mutated genes with higher resistance are transmitted and resistance is generated in entire populations and even species.

6 0
3 years ago
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