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ArbitrLikvidat [17]
3 years ago
11

From the list of substances, identify each as a strong acid, strong base, or neither a strong acid nor a strong baseDrag the app

ropriate items to their respective bins. Strong acid Strong base Neither a strong acid nor a strong baseHNO3 HCl NaCl Ca(OH)2 CH3COOH CH3NH2 CH3OH HF RbOH
Chemistry
1 answer:
Veseljchak [2.6K]3 years ago
3 0

Answer:

Answer is in the explanation

Explanation:

All acids that dissociates completely in water are considered strong acids. In the same way, bases that dissociates completely in water are strong bases. All hydroxides made from alkali metals and heavier alkali earth metals are strong bases.

HNO3 dissociates completely in water: STRONG ACID.

HCl dissociates completely in water. STRONG ACID.

NaCl is a salt. Neither a strong acid nor a strong base.

Ca(OH)2. Heavy alkaline earth metal. STRONG BASE.

CH3COOH an acid that doesn't dissociate completely in water. Neither a strong acid nor a strong base.

CH3NH2 is a weak base that doesn't dissociate completely in water. Neither a strong acid nor a strong base.

CH3OH. Methanol is an alcohol. Neither a strong acid nor a strong base.

HF is a weak acid; doesn't dissociate completely in water. Neither a strong acid nor a strong base.

RbOH. Is an hydroxide made from alkali metal. STRONG BASE.

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How many different elements are in nine substances
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You are made of mostly 6 elements: Oxygen, Carbon, Hydrogen, Nitrogen, Calcium, and Phosphorus. Some of these elements combine to form compounds in your body.
3 0
3 years ago
true or false: ionic bonding involves the shareing of electrons, oxide ions have a 2+ charge , electrons have a negative charge
Elis [28]
Ionic bonding does not involve the sharing of electrons, that one is false. In ionic bonding, the metal's electrons are given to the non-metal, so that they're both like the nearest noble gas (full electron shells.) They are then drawn together because one has a negative charge (the non-metal) and one has a positive charge (the metal.)

Oxide ions have a 2+ charge: This is false, oxide ions have a 2- charge.

Electrons do have a negative charge, this is true.

Hydrogen molecule: pretty sure this is true. We know this because both atoms are non-metals.

The last one is true: a covalent bond is a shared pair of electrons between two atoms, however be aware that there can be more than one covalent bond between two molecules.


7 0
3 years ago
Read 2 more answers
Suppose the available nutrients in the soil of an ecosystem decrease. Over time, which adaptation is MOST LIKELY to evolve among
Anna [14]

Answer:

Root system will become larger or extend farther

Explanation:

If nutrient in soil decrease, the plant's roots system will likely become larger and extend out deeper and farther to get all the nutrients it possibly can

4 0
3 years ago
Vegetable oil has a specific heat of 1.67/* Calculate the heat required (in kilojoules) to raise the temperature of 500 g of
Nady [450]

Answer:

Q=108.55kJ

Explanation:

Hello,

In this case, we can compute the required heat by using the following equation:

Q=mCp(T_2-T_1)

Thus, by considering the given mass, specific heat and both initial and final temperature, we obtain:

Q=500g*1.67\frac{J}{g\°C} *(150.0\°C-20.0\°C)*\frac{1kJ}{1000J} \\\\Q=108.55kJ

Regards.

5 0
3 years ago
How many electrons make up a charge of -50.0 μc ? Express your answer using three significant figures?
SVETLANKA909090 [29]

The charge on one mole of electrons = 96485 C =  1 Faraday

so if charge is 96485 C the moles of electrons are 1 = 6.023 X 10^23 electrons

if charge is 1 C the number of electrons = 6.023 X 10^23 / 96485

If charge is 50 micro C the number of electrons

              = 6.023 X 10^23 X 50 X 10^-6 / 96485

             = 3.12 X 10^14 electrons


5 0
3 years ago
Read 2 more answers
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