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3 years ago

Which is a FALSE statement about compounds?

Chemistry

2 answers:

Ganezh [65]3 years ago

4 0

The answer is D made of only one kind of atom

rewona [7]3 years ago

3 0

Answer: D. Made of only one kind of atom

Explanation:A compound forms whenever two or more atoms form chemical bonds with each other.

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Arrange the elements in order of increasing electronegativity. Use the periodic table to help you arrange the elements.

spayn [35]

Silicon, chlorine , sulfur , phosphorus

8 0

3 years ago

Read 2 more answers

A mineral contains only a metal, M, and sulfur. If analysis indicates that a 4.3 g sample of the mineral contains 1.56 g of M, w

oee [108]

Answer: 143.66 grams of M (g) is contained in 396 g of the mineral

Explanation:

Given : mineral contains metal M and sulphur

Mass of mineral = 4.3 g

Mass of metal M in mineral = 1.56 g

Thus if 4.3 gram of mineral contains metal = 1.56 g

Using unitary method for solving this :

1 g of mineral contains metal = $\frac{1.56}{4.3}\times 1=0.36$

396 g of mineral contains metal = $0.36\times 396=143.66 g$

Thus 143.66 grams of M (g) is contained in 396 g of the mineral

4 0

4 years ago

URGENT A gas occupies a volume of 2.4 L at 0.14 ATM. What volume will the gas occupy at 0.84 ATM ?

alisha [4.7K]

Answer:

c 0.40 L

Explanation:

Calculate by using Boyle's Law P₁V₁=P₂V₂

(0.14atm)(2.4L) = (0.84atm)(V₂)

0.336 atmL = (0.84atm)(V₂)

V₂ = 0.336 atmL/0.84atm

V₂ = 0.4 L

6 0

3 years ago

How many ammonium ions and how many sulfate ions are present in a 0.270 mol sample of ?

IgorLugansk [536]

<u>Answer:</u> There are $3.25188\times 10^{23}$ ammonium ions and $1.62594\times 10^{23}$ sulfate ions in the given amount of ammonium sulfate.

<u>Explanation:</u>

We are given 0.270 moles of ammonium sulfate and we need to find the number of ammonium and sulfate ions in it. The equation for the ionization of ammonium sulfate is given by the reaction:

$(NH_4)_2SO_4\rightarrow 2NH_4^++SO_4^{2-}$

By Stoichiometry,

1 mole of ammonium ions dissociates into 2 moles of ammonium ions and 1 mole of sulfate ion.

According to the mole concept:

1 mole of an ionic compound contains $6.022\times 10^{23}$ number of ions.

Hence, 0.270 mole of ammonium sulfate will contain $0.270\times 2\times 6.022\times 10^{23}=3.25188\times 10^{23}$ number of ammonium ions and $0.270\times 1\times 6.022\times 10^{23}=1.62594\times 10^{23}$ number of sulfate ions.

Hence, there are $3.25188\times 10^{23}$ ammonium ions and $1.62594\times 10^{23}$ sulfate ions in the given amount of ammonium sulfate.

5 0

3 years ago

PLS HELP NEED ANSWER what is the difference between water and water molcules

dimaraw [331]

Answer:

One molecule of water has two hydrogen atoms covalently bonded to a single oxygen atom. Water is a tasteless, odorless liquid at ambient temperature and pressure.

Explanation:

Hope this helps :) Have a great day!

4 0

3 years ago