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3 years ago

When a metallic element is converted to a positive ion during a chemical reaction with oxygen, the element is said to be?

Chemistry

1 answer:

Orlov [11]3 years ago

5 0

The metal is being oxidized.

Metals- along with other elements- are neutral and have oxidation state of $0$ in their respective elementary states.

Metal atoms can lose electrons to electronegative elements such as oxygen on exposure. Atoms that have lost one or more negatively-charged electrons are no longer neutral and demonstrate a positive charge. Those atoms have converted to positively charged ions or cations.

Oxidation is the process of losing electrons whereas Reduction refers to the process of gaining electrons. "OIL RIG." Metal atoms here lose electrons and are thus oxidized.

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If 3.00 liters of 2M HCl neutralizes 1.00 liter of NaOH, what is the molarity of the NaOH?

PilotLPTM [1.2K]

Answer:

$M_{base}=6M$

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to realize this is a question about titration, which base solved by knowing that the HCl reacts with the NaOH in a 1:1 mole ratio, and therefore, we can write the following:

$M_{acid}V_{acid}=M_{base}V_{base}$

Thus, we solve for the molarity of the base, NaOH, as shown below:

$M_{base}=\frac{M_{acid}V_{acid}}{V_{base}} \\\\M_{base}=\frac{3L*2M}{1.00L}\\\\M_{base}=6M$

Regards!

7 0

3 years ago

The solid dissolves quickly is a chemical or physical reaction

Vladimir79 [104]

Answer:

i think it is chemical wait no physical

Explanation:

4 0

3 years ago

Which amino acid(s) are metabolites in the urea cycle, but are not used as building blocks of proteins? A) Ornithine B) Citrilli

In-s [12.5K]

Answer:

Explanation:

Ornithine and Citrulline are the amino acids which are metabolites in the urea cycle but not used as building blocks of proteins.

Ornithine is the most important reactant in urea cycle that is responsible for 80% of the excretion of nitrogen in the body. It even improves liver function.

Even Citrulline is not used in the building blocks of protein, Citrulline is mainly used to widen blood vessels and may play a role in muscle building.

3 0

3 years ago

A sealed balloon occupies a volume of 250 mL at an unknown temperature. When the temperature is altered to 30 C, the balloon's v

Allushta [10]

Answer:

Initial temperature, T1 = 15°C

Explanation:

Given the following data;

Initial volume, V1 = 250 mL to Liters = 250/1000 = 0.25 L

Final temperature, T2 = 30°C

Final volume, V2 = 0.5 L

To find the initial temperature T1, we would use Charles' law.

Charles states that when the pressure of an ideal gas is kept constant, the volume of the gas is directly proportional to the absolute temperature of the gas.

Mathematically, Charles is given by;

$\frac {V}{T} = K$