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3 years ago

Write the formula two atom of iron and three atoms of oxygen

Chemistry

1 answer:

34kurt3 years ago

5 0

Answer:

Fe2O3 is the formula this is your correct answer

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Which particles that make up an atom are involved in nuclear reactions?.

cestrela7 [59]

Basically nuclear reactions need to involve protons and neutrons and changes in them. So it should be particles within the nucleus. Aka protons and neutrons.

6 0

2 years ago

What is the hydroxide ion concentration of a solution whose pOH is 6.42?

Sergeeva-Olga [200]

Answer : The hydroxide ion concentration of a solution is, $3.8\times 10^{-7}M$

Explanation :

As we know that:

pH : It is defined as the negative logarithm of hydrogen ion concentration.

Mathematically,

$pH=-\log [H^+]$

Similarly,

pOH : It is defined as the negative logarithm of hydroxide ion concentration.

Mathematically,

$pOH=-\log [OH^-]$

Given:

pOH = 6.42

$6.42=-\log [OH^-]$

$[OH^-]=3.8\times 10^{-7}M$

Therefore, the hydroxide ion concentration of a solution is, $3.8\times 10^{-7}M$

7 0

3 years ago

At what temperature (in K) will 3.5 moles of gas occupy 2.7 L at 1.5 atm? HELP PLEASE!

Vesnalui [34]

3.5 moles of a gas will occupy 2.7 L at 1.5 atm at a temperature of 14.1K

IDEAL GAS LAW:

The temperature of a gas can be calculated using the ideal gas law equation:

PV = nRT

Where;

P = pressure (atm)
V = volume (L)
n = number of moles (mol)
R = gas law constant (0.0821 Latm/molK)
T = temperature (K)

According to this question, P = 1.5atm, V = 2.7L, n = 3.5moles, T = ?

1.5 × 2.7 = 3.5 × 0.0821 × T

4.05 = 0.28735T

T = 4.05 ÷ 0.28735

T = 14.1K

Therefore, 3.5 moles of a gas will occupy 2.7 L at 1.5 atm at a temperature of 14.1K

Learn more at: brainly.com/question/13821925?referrer=searchResults

6 0

3 years ago

A fat is composed, in part, of long chains of carbon and hydrogen. This fat as a molecular

IgorLugansk [536]

Answer:

$C_{54}H_{102}O_6$

Explanation:

Hello!

In this case, since the molar mass of the empirical formula is:

$MM_{empircal}=9*12.01+17*1.01+16.00=141.26g/mol$

Thus, the ratio of the molecular to the empirical formula is:

$\frac{847g/mol}{141.26g/mol} =6.0$

Thus, the molecular formula is six times the empirical formula:

$C_{54}H_{102}O_6$

Best regards!

8 0

3 years ago

Can someone help me balance this chemical equation?<br><br> CO2(g) + H2O(l) -> C6H12O6(aq) + O2

hram777 [196]

It becomes:
6CO2 + 6H2O -> C6H12O6 + 6O2

8 0

3 years ago

Write the formula two atom of iron and three atoms of oxygen​

Write the formula two atom of iron and three atoms of oxygen