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elena55 [62]
3 years ago
11

What is the mass number of a carbon isotope that has seven neutrons

Chemistry
1 answer:
nika2105 [10]3 years ago
3 0
The mass number of a carbon isotope that has seven neutrons is carbon-13
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a normal hemoglobin concentration in the blood is 15g/100ml of blood how many kilogram of hemoglobin are in a person who has 5.5
jok3333 [9.3K]
Using stoichiometry:

5.5 L of blood x (1000 mL/1L) x (15 g/100 mL) x (1 kg/1000 g) = 0.825 kg
4 0
3 years ago
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A sample of a gas takes up 2.35L of space at room temperature (20.0ºC). What volume will the gas occupy at -5.00ºC? (Hint: Don’t
sergiy2304 [10]
So if it is 2.35L at the temperature 20.0^C and you want the volume at -5.00^C this is hw you would solve it for example 20.0^C to 2.00L it would be 10 degrees per Liter so it would be here 10 degrees every liter so you would do 20.0 % 2.35 = / then find the answer and then find out how many degrees that answer is off of -5.00 then once you get that divide -5.00 with that answer.<span>
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3 0
3 years ago
Which of these is the smallest volume 500mL, 2,500 cm3, 5.5•10-1, 25 m3
mezya [45]
25m³.
500mL = 500cm³
25m³ = 2,500cm³
5.5x9 = 49.5(cm³)
25m³ is the smallest among the others.
5 0
3 years ago
What is the molarity of a solution prepared by dissolving 2.5 grams of LiNO3 in sufficient water to make 60.0 mL of solution?​
Murrr4er [49]

Answer: hope this helps

To make molar NaCl solutions of other concentrations dilute the mass of salt to 1000ml of solution as follows:

0.1M NaCl solution requires 0.1 x 58.44 g of NaCl = 5.844g.

0.5M NaCl solution requires 0.5 x 58.44 g of NaCl = 29.22g.

2M NaCl solution requires 2.0 x 58.44 g of NaCl = 116.88g.

Explanation:

6 0
3 years ago
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true or false, Valence bond theory states that a bond between two atoms is the strongest when the nuclei of the atoms are touchi
pentagon [3]

Valence bond theory stating that a bond between two atoms is the strongest when the nuclei of the atoms are touching each other is true.

<h3>What is Valence bond theory?</h3>

This theory states that when two valence orbitals of two different atoms overlap on each other, the bond is usually strong.

The bond formed in this scenario is usually covalent which involves sharing of the valence electrons.

Read more about Valence bond theory here brainly.com/question/11625586

#SPJ1

8 0
2 years ago
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