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Svetradugi [14.3K]
3 years ago
8

What is the molar mass of NaCrO4?

Chemistry
1 answer:
Mariulka [41]3 years ago
3 0

Answer:

Molar Mass: 138.9818 g/mol

Explanation:

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A sample of magnesium is burned in oxygen to form magnesium oxide. What mass of oxygen is consumed if 74.62 g magnesium oxide is
lana [24]
74.62 g of magnesium oxide is formed from 45.00 g magnesium so 74.62-45.00= 29.62 g of oxygen is consumed or in other words a new compound is formed in the burning of magnesium in oxygen with a heavier mass than the pure magnesium.
3 0
3 years ago
Joanna is performing a reaction that generates a moderate amount of hydroxide. To mimic biological conditions (most bodily fluid
Nady [450]

Answer:

As for your question, I know to forget to put the options, specifically that your question is incomplete.

Explanation:

Although it could help you by telling you that always a reaction that seeks to balance the pH, and achieve neutrality ... It is necessary to achieve a concentration of OH equal to that of H +, in this way the hydroxyl and the protons.

7 0
3 years ago
Identify the number of protons, neutrons, and electrons in a neutral atom of each of the following (you can refer to a periodic
Delvig [45]
You must first know that the number of protons and neutrons are same, and neutrons number may vary. Carbon 12 has 6 protons, 6 neutrons and 6 electrons. Sodium 23 has 12 protons , 12 electrons and and 11 neutrons. Silver 108 has 47 protons, 47 electrons and 61 electrons. Finally, Sulfur 32 has 16 protons, 16 nuetrons and 16 electrons. Basically the number of neutrons in an atom can be found by subtracting proton number from mass number
7 0
3 years ago
If the exact outer limit of an isolated atom cannot be measured, what criterion can we use to determine atomic radii? What is th
Alik [6]

Answer:

Calculate the atomic radii of two touching or overlapping atoms.

Explanation:

No doubt, we can't find the atomic boundary of a single atom, but when atoms are in the form of pairs it becomes very easy to measure the atomic radii of two and then dividing it by 2 to get an estimate of atomic radius of a single atom.

It is also called as covalent radius which is half of the total inter-nuclear distance between two same bonded atoms (Homo-nuclear).

If two adjacent mettalic ions are joined by such pairing then the same half of the distance between the nucleus is termed as metallic radii.

7 0
3 years ago
An unknown substance has a density of 56 g/cm3. Its volume is 3.5 cm.
postnew [5]

Answer:

<h3>The answer is 196 g</h3>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question we have

mass = 56 × 3.5

We have the final answer as

<h3>196 g</h3>

Hope this helps you

3 0
3 years ago
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