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3 years ago

15

Water molecule are able to form hydrogen bonds with? A OXYGEN gas o2 molecules b any compound that is not soluble in water c com

pounds that have polar covalent bonds d oils

1 answer:

lbvjy [14]3 years ago

4 0

Compounds that have polar covalent bonds.

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Please help urgent Balance the following word equation:

LekaFEV [45]

Answer:

AlCl3 + 3Na > Al + 3NaCl

Explanation:

AlCl3+Na → Al + NaCl

Al =1 Al=1

Cl =3 Cl = 1

Na=1. Na = 1

so balance

and it would be

Alcl3 + 3Na → Al + 3NaCl

8 0

3 years ago

An object's velocity can be described by its acceleration and direction.<br><br> True<br> False

coldgirl [10]

Answer:

False

Explanation:

An object's velocity can be described by it's direction. Because velocity is a vector. Besides velocity and acceleration are different units they can't be described by each other.

7 0

2 years ago

135 grams of sodium has ______ moles.<br><br> (Enter just the number for this one.)

just olya [345]

Answer : 135 grams of sodium has 5.869 moles.

Solution : Given,

Mass of sodium = 135 grams

Molar mass of sodium = 23 g/mole

Formula used :

$\text{Moles of sodium}=\frac{\text{Mass of sodium}}{\text{Molar mass of sodium}}$

Now put all the given values in this formula, we get

$\text{Moles of sodium}=\frac{135g}{23g/mole}=5.869moles$

Therefore, the moles of sodium present in 135 grams of sodium is, 5.869 moles.

6 0

3 years ago

Please help me with this homework

ella [17]

Answer:

Density is the correct answer choice.

5 0

3 years ago

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Derive third law of thermodynamics equation

Hoochie [10]

Answer:

The Third Law of thermodynamics states that the entropy of a pure substance in a perfect crystalline state at zero temperature is zero.

3 0

2 years ago