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3 years ago

Is there a polyatomic ion in calcium phosphide ?

Chemistry

1 answer:

qaws [65]3 years ago

7 0

Answer:

Polyatomic ions are a set of covalently bonded atoms that have an overall charge, making them an ion. ... For example, calcium hydroxide has the formula Ca(OH)2 because hydroxide has -1 charge and calcium has a 2+ charge. Two hydroxides were needed to balance off the +2 charge of calcium.

Explanation:

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Why does hard water taste better than distilled water?

Maurinko [17]

Answer:

because hard water is salty

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3 years ago

How much heat is required to change temperature of 10 g of water from 4 °C to 8 °C? (Water has a specific heat of 4.18 )?

Andrews [41]

Answer: 167.2 J

Explanation:

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2 years ago

Ammonium perchlorate nh4clo4 is a powerful solid rocket fuel, used in the space shuttle boosters. it decomposes into nitrogen n2

babymother [125]

2NH4ClO4 --------> N2 + Cl2 + 2O2 + 4H2O
from reaction 2 mol 1 mol
given x mol 0.10 mol

Proportion:
2 mol NH4ClO4 = 1 mol Cl2
x mol NH4ClO4 0.10 mol Cl2

x= (2*0.10)/1 = 0.20 mol NH4ClO4

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3 years ago

If you have 150 grams of s8, how many moles of so2 can you make?

ruslelena [56]

Answer : You can make 4.68 moles of SO₂

Explanation:

Step 1 : Write balanced equation.

S₈ can combine with oxygen to form SO₂ gas. The balanced equation for this reaction is written below.

$S_{8} + 8 O_{2} \rightarrow 8 SO_{2}$

Step 2 : Find moles of S₈

The formula to calculate mol is

$mole = \frac{grams}{MolarMass}$

Molar mass of S₈ is 256.5 g/mol

$mole = \frac{150grams}{256.5 g/mol}$

$mole = 0.585 mol$

we have 0.585 mol of S₈

Step 3: Use mole ratio to find moles of SO₂

The mole ratio of S₈ and SO₂ can be found using balanced equation which is 1:8

That means 1 mol of S₈ can form 8 moles of SO₂.

Let us use this as a conversion factor to find moles of SO₂

$0.585 mol (S_{8}) \times \frac{8 mol (SO_{2})}{1 mol (S_{8})} = 4.68 mol$

Therefore we have 4.68 moles of SO₂

4 0

3 years ago

Read 2 more answers

If 19.7 g of AlI3 is actually produced, what is the percentage yield? 2 Al + 3 I2 → 2 AlI3

tatuchka [14]

The formula actual yield / theoretical yield is used to calculate the percent yield of a reaction. This value is a measure of how much product is produced relative to the what is supposed to be produced. It seems that the given in the problem is incomplete so we cannot really give a specific value.

8 0

3 years ago