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SOVA2 [1]
3 years ago
14

In which block of the period table is chromium found

Chemistry
2 answers:
fiasKO [112]3 years ago
8 0
That should be your answer! hope this helped!

Anon25 [30]3 years ago
4 0
Chromium (Cr) is round in d block
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Which equation represents a nuclear reaction that an example of an artificial transmutation?
blsea [12.9K]

Answer is: 2) 14/7 N + 4/2 He --> 17/8 O + 1/1 H.

Transmutation is a process that involves a change in the nucleus of an atom. It can be natural or artificial.

This example is the first artificial nuclear transmutation described by Rutherford in 1919.

Artificial transmutation can be expressed by nuclear reaction:

Target Nuclide + Bombardment Particle → New Nuclide + Ejected Particle.

3 0
3 years ago
Read 2 more answers
. For the reaction 2HNO3 + Mg(OH), → Mg(NO3)2 + 2H20, how many grams of magnesium nitrate are produced from 8.00 mol of nitric a
GREYUIT [131]

Mass of Magnesium nitrate produced : 593.2 g

<h3>Further explanation</h3>

The reaction equation is the chemical formula of reagents and product substances

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction

2HNO₃ + Mg(OH)₂ → Mg(NO₃)₂ + 2H₂0

mol HNO₃ = 8

From the equation, mol ratio of HNO₃ : Mg(NO₃)₂ = 2 : 1, so mol Mg(NO₃)₂ :

\tt \dfrac{1}{2}\times 8=4~moles

Mass Mg(NO₃)₂(MW=148,3 g/mol) :

\tt mass=mol\times MW\\\\mass=4\times 148,3 g/mol\\\\mass=593.2~g

6 0
3 years ago
What is the volume of a 3.0 M solution of hydrochloric acid that contains 1.50 moles of solute?
charle [14.2K]
C - concentration: 3.0M
n - number of moles: 1.50 moles
V - volume: ???
____________
C = n/V
V = n/C
V = 1.5/3
V = 0,5 L = 500 mL

:)
4 0
4 years ago
Mass in grams of 6.25 mol of copper (II) nitrate?
podryga [215]
Cu = 63.546
N= 14.001 g/mol
O= 15.999 g/mol * 3 = 47.997

Copper (II) Nitrate has a MW of 125.544 g/mol

6.25 x 125.544

= 784.65 <--- is your answer, if there were was a multiple choice or not :)
8 0
4 years ago
Read 2 more answers
Hailey, a chemistry student, is measuring samples of a metallic substance for an experiment on density, using a balance that mea
Inessa05 [86]
The best and most correct answer among the choices provided by your question is the second choice or letter B.

<span>The most accurate measurement based on the limitations of the balance that might be found in her recorded data would be 9.2</span>


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
7 0
3 years ago
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