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timama [110]
3 years ago
12

How many atoms does Zirconium have ?

Chemistry
1 answer:
WINSTONCH [101]3 years ago
8 0

Answer:

Name Zirconium

Atomic Number 40

Atomic Mass 91.224 atomic mass units

Number of Protons 40

Number of Neutrons 51

Explanation:

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BRAINLIEST:
vekshin1
33 is the correct answer
8 0
3 years ago
After standardizing a NaOH solution, you use it to titrate an HCl solution known to have a concentration of 0.203 M. You perform
jek_recluse [69]

Answer:

0.203 is the mean of the concentration of the HCl solution

Explanation:

You have 5 concentrations. The most appropiate result is the mean of those results. The mean is a statistical defined as the sum of each result divided by the total amount of results. For the results of the problem, the mean is:

0.210 + 0.204 + 0.201 + 0.202 + 0.197 = 1.014 / 5 =

<h3>0.203 is the mean of the concentration of the HCl solution</h3>
8 0
3 years ago
Which type of rock might be useful as a source of petroleum?
storchak [24]

Answer:

petroleum rocks

Explanation:

6 0
3 years ago
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NADH is also used by cells when making certain molecules. Based on your knowledge of the role of NADH in cellular respiration, w
OLEGan [10]

Answer:

Reducing molecules.

Explanation:

NAD (Nicotinamide adenine dinucleotide) is the important molecule used by the living organisms for the generation of ATP. NADH is used almost in every biochemical cycle like glycolysis, kreb cycle and elelctron transport chain.

The NADH molecule is used as the reducing molecule in the biosynthesis of the different reaction. The NADH molecule reduces its hydrogen ions and also carry electrons for the synthesis of molecules. The NADH molecule is also used in the shuttle system as well.

Thus, the answer is reducing molecules.

6 0
3 years ago
Which of the following is NOT true regarding Rutherford's Gold Foil experiment?
erastova [34]

Answer:

The area around the nucleus must be of low mass.

Explanation:

Rutherford`s experiment showed that there are some positive charges in the center of the atoms, and because they are all together, they will give a great mass to the atom.

It was quite different from Thomson`s experiment, in which it was thought that the negative charges were mixed with the positive charges, around the atom (like a Pudding Model). In Rutherford`s experiment, because the direction of beta particles, it was the prediction of the positive nucleus.

Hope this info is useful.

8 0
3 years ago
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