3 years ago

Write the formula for each of the following compounds

Chemistry

1 answer:

evablogger [386]3 years ago

5 0

Answer:

the formula is Mg(NO3)2

You might be interested in

The change in internal energy for the combustion of 1.0 mol of octane at a pressure of 1.0 atm is -5084.1 kj . f the change in e

TEA [102]

<u>Given:</u>

Change in internal energy = ΔU = -5084.1 kJ

Change in enthalpy = ΔH = -5074.3 kJ

<u>To determine:</u>

The work done, W

<u>Explanation:</u>

Based on the first law of thermodynamics,

ΔH = ΔU + PΔV

the work done by a gas is given as:

W = -PΔV

Therefore:

ΔH = ΔU - W

W = ΔU-ΔH = -5084.1 -(-5074.3) = -9.8 kJ

Ans: Work done is -9.8 kJ

6 0

3 years ago

1.) What are the two broad categories that elements can be divided into?

hoa [83]

Answer:

1) Metals and nonmentals

2) Elements: Oxygen ( $O_{2} \\$ ) , Nitrogen ( $N_{2}$

3) Compounds: Carbon Dioxide $CO_{2}$ , Methane $CH_{4}$ , Nitrogen Dioxide $NO_{2}$

Explanation:

5 0

3 years ago

The least electronegative element from among the following is

Anettt [7]

The most appropriate answer is C !! Cs is most electropositive and thus least electronegative !!

8 0

4 years ago

Read 2 more answers

Calculate the density of an aluminum block with a volume of 100 cm3 and a mass of 270g.

m_a_m_a [10]

Answer:

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question we have

$density = \frac{270}{100} = \frac{27}{10} \\$

We have the final answer as

Hope this helps you

6 0

3 years ago

Which of the following Gila Monster adaptations is based on the reproductive cycles of Gambel’s quails and cottontail rabbits?

Natasha_Volkova [10]

Answer:

Explanation:

3 0

3 years ago