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3 years ago

Which of the following polyatomic ions has a 3- ionic charge?

Chemistry

1 answer:

ch4aika [34]3 years ago

4 0

Answer: Option (a) is the correct answer.

Explanation:

Poly means many and polyatomic ions means an ion(s) with two or more different atoms.

Out of the given options, phosphate ion is the polyatomic ion which has an ionic charge of 3-.

The formula depicting a phosphate ion is $PO_{4}^{3-}$ .

Whereas Nitrate, Sulfate, Hydroxide , Bicarbonate does not carry or have a 3- ionic charge.

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What is diabetes? How does it disrupt normal cellular activities? What are the overall consequences for your body?

Vlad1618 [11]

Answer:

Diabetes is a group of diseases that affect how your body uses blood sugar (glucose). Glucose is vital to your health because it's an important source of energy for the cells. Cells are everywhere including the blood, bones and muscles. When you have diabetes, you don’t have enough insulin in your blood (an organ in your body called the pancreas makes insulin). Insulin controls the movement of blood sugar into the cells of the body.

Explanation:

8 0

3 years ago

What is the molar mass of water in the hydrate ?

Free_Kalibri [48]

The mass of water equals the mass of the hydrate minus the mass of the anhydrite 4.9 G -2.9 G equals 2.0 G of water moles of water equals the mass of water/the molar mass of water 2.0 GH20/18 G/MOLHTO equals 0.11 Moles H20

6 0

3 years ago

What temperature kelvin would .97mol of gas be to occupy 26L at 751.2mmHg?

crimeas [40]

Answer: 322.56 Kelvin

Explanation:

Use the Ideal Gas Law

$PV=nRT$

R is the gas constant

T is the temperature in Kelvins

P is the pressure in atmospheres

V is the volume in liters

n is the number of moles of gas

First, the mm of mercury need to be converted to atmospheres using the conversion factor 1atm = 760 torr.

$751.2mmHg (torr) =0.988atm$

Now plug everything in

$(0.988)(26)=(0.97)(0.0821)T\\T=322.56K$

5 0

3 years ago

When 3.00 moles of hydrogen molecules and 1.50 moles of oxygen molecules react, they form 3.00 moles of water according to the r

Lynna [10]

Answer:

54.0 g.

Explanation:

From the given data and the balanced reaction:

2H₂ + O₂ → 2H₂O.

When 3.00 moles of hydrogen molecules and 1.50 moles of oxygen molecules react, they form 3.00 moles of water according to the balanced reaction.

∴ The no. of grams in 3.0 moles of water = no. of moles x molar mass = (3.0 mol)(18.0 g/mol) = 54.0 g.

3 0

3 years ago

One mL of water is equal to

solniwko [45]

1 milliliter of water (ml)

Equals : 0.04 ounces of water (oz wt.)

Fraction : 1/25 ounces of water (oz wt.)

3 0

4 years ago