2 years ago

What is a number bond.

1 answer:

3 0

Explanation:

number bonds are pairs of numbers that can be added together to make another number e.g. 4 + 6 = 10. They are some of the most basic and most importantparts ofmaths for children to learn

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Which electron configuration represents the element carbon (atomic number 6)?

trapecia [35]

1s2 2s2 2p2 i hope this helps

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2 years ago

An iron chloride compound contains 55.85 grams of iron and 106.5 grams of chlorine. What is the most likely empirical formula fo

mart [117]

Answer:

$FeCl_{3}$

Explanation:

$Moles =\frac {Given\ mass}{Molar\ mass}$

mass of Fe = 55.85 g

Molar mass of Fe = 55.85 g/mol

<u>Moles of Fe = 55.85 / 55.85 = 1</u>

mass of Cl = 106.5 g

Molar mass of Cl = 35.5 g/mol

Moles of Cl = 106.5 / 35.5 = 3

Taking the simplest ratio for Fe and Cl as:

1 : 3

The empirical formula is = $FeCl_{3}$

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3 years ago

How do you convert between the volume of a gas at STP and the number of moles of the gas?

Naya [18.7K]

Standard temperature and pressure (STP) means a temperature of 0°c and a pressure of 1 atmosphere (atm). The molar gas volume is used to convert between the number of moles of a gas and the volume of the gas at STP. One mole of a gas occupies a volume of 22400 cm³ or 22.4 liters at STP according to the molar gas volume.

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3 years ago

Which of the following sources of radiation produced from nuclear power plants poses the largest threat to humans?

oee [108]

The nuclear reactor inside the facility

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Express In scientific notation. Remember, M must be a number 1 SM <10.<br> 18 =

Nesterboy [21]

Answer: 1.8 x 10^1 or the scientific e notation is: 1.8e1

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3 years ago

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