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Vinvika [58]
3 years ago
14

Subject: science what is radiation?​

Chemistry
1 answer:
valina [46]3 years ago
6 0

Answer:

Definition: - Radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium.

Example: A burning candle emits radiation in the form of heat and light.

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How many grams are in 2.5 moles of Carbon
Jet001 [13]
According to the periodic table, carbon's molar mass is 12.011 grams per mole (that's the small number under the element).  So, just multiply like this to get the answer:

(2.5\ mol\ C)(\frac{grams\ C}{12.011\ mol\ C})=0.20814\ g\ C

So, there are approximately 0.208 grams in 2.5 moles of carbon.
6 0
3 years ago
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1. Use electron dot formulas to predict the formulas of the ionic compounds formed from the
masha68 [24]

Answer:

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3 years ago
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Iron is biologically important in the transport of oxygen by red blood cells from the lungs to the various organs of the body. I
Aneli [31]

Answer : The number of iron atoms present in each red blood cell are, 1.077\times 10^9

Explanation :

First we have to calculate the moles of iron.

\text{Moles of iron}=\frac{\text{Mass of iron}}{\text{Molar mass of iron}}=\frac{2.90g}{55.85g/mole}=0.0519moles

Now we have to calculate the number of iron atoms.

As, 1 mole of iron contains 6.022\times 10^{23} number of iron atoms

So, 0.0519 mole of iron contains 0.0519\times 6.022\times 10^{23}=3.125\times 10^{22} number of iron atoms

Now we have to calculate the number of iron atoms are present in each red blood cell.

Number of iron atoms are present in each red blood cell = \frac{\text{Number of iron atoms}}{\text{Total number of red blood cells}}

Number of iron atoms are present in each red blood cell = \frac{3.125\times 10^{22}}{2.90\times 10^{13}}

Number of iron atoms are present in each red blood cell = 1.077\times 10^9

Therefore, the number of iron atoms present in each red blood cell are, 1.077\times 10^9

6 0
3 years ago
2<br> Nommez des objets qui peuvent servir d'organes de liaison.
Oksi-84 [34.3K]

Answer:Liaison élastique: Une liaison est élastique lorsqu'il y a présence d'un organe de liaison élastique ou d'un matériau élastique qui assure un mouvement de rappel (retour à la position initiale) des composants dans le fonctionnement de l’objet. On y retrouve souvent des ressorts.

Explanation:

8 0
3 years ago
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What is the balanced molecular equation and balanced chemical equation for NaSO4 and KNO3?
Llana [10]

Answer:

=KSO4+Na2(NO3)2

Explanation:

the answer is true using this chemical equation balancer

4 0
3 years ago
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