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3 years ago

Which of these characteristics best describes a basic solution?

2 answers:

6 0

Short Answer: <span>Solutions of dilute, weak acids - the only kind that you might taste - are sour. Weak, dilute bases are bitter. Solutions of bases are slippery.

Hope I get brainliest!</span>

yulyashka [42]3 years ago

4 0

Solutions of bases are slippery. So in your answer sheet it should be the answer C. <span>Feels slippery.

Hope this helps !

Photon</span>

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The ideal gas law is a combination of all the gas laws and states that PV = nRT. The value of n stands for

dimaraw [331]

Answer:

Explanation:

p is pressure, v is vo;lume, t is temperature, r is ideal gas contstant, therefore n is the moles

7 0

3 years ago

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Nitrogen and oxygen do not react appreciably at room temperature, as illustrated by our atmosphere. But at high temperatures, th

Gre4nikov [31]

Answer : The equilibrium concentration of NO is, 0.0092 M.

Solution :

First we have to calculate the concentration of NO.

$\text{Concentration of NO}=\frac{\text{Moles of }NO}{\text{Volume of solution}}=\frac{0.3152mol}{2.0L}=0.1576M$

The given equilibrium reaction is,

$N_2(g)+O_2(g)\rightleftharpoons 2NO(g)$

Initially conc. 0 0 0.1576

At eqm. (x) (x) (0.1576-2x)

The expression of $K_c$ will be,

$K_c=\frac{[NO]^2}{[N_2][O_2]}$

$0.0153=\frac{(0.1576-2x)^2}{(x)\times (x)}$

By solving the term, we get:

$x=0.0742,0.0839$

Neglecting the 0.0839 value of x because it can not be more than initial value.

Thus, the value of 'x' will be, 0.0742 M

Now we have to calculate the equilibrium concentration of NO.

Equilibrium concentration of NO = (0.1576-2x) = [0.1576-2(0.0742)] = 0.0092 M

Therefore, the equilibrium concentration of NO is, 0.0092 M.

5 0

4 years ago

MAXImum [283]

Answer:

Sulfuric acid + Zinc = reactant

Zinc sulfate + hydrogen = product

Lead oxide + carbon = reactant

lead + carbondioxide = product

Explanation:

Chemical equation:

Sulfuric acid + Zinc → Zinc sulfate + hydrogen

H₂SO₄ + Zn → ZnSO₄ + H₂

In this reaction sulfuric acid and zinc react to produce the zinc sulfate and hydrogen. That's why sulfuric acid and zinc are reactant. While zinc sulfate and hydrogen are products.

2nd reaction:

Lead oxide + carbon → lead + carbondioxide

2PbO + C → 2Pb + CO₂

In this reaction Lead oxide and carbon react to produce the lead and carbondioxide. That's why Lead oxide and carbon are reactant. While lead and carbondioxide are products.

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3 years ago

We can predict that summer will follow spring. T or F

Romashka-Z-Leto [24]

Answer:

true

Explanation:

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3 years ago

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One mole of beryllium (be) contains the same number of atoms as 22.99 g of sodium. There are about 2.007×1023 atoms in 9.0 g al.

Hoochie [10]

1) the number of atoms (or molecules or ions) in one mole of any substance is same= 6.023 X 10^23

Thus as mass of one mole of sodium = 22.99 grams, this is equal to molar mass of sodium

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Thus number of atoms in Be will be same the number of atoms of 22.99g of sodium

2) The mass of aluminium is given = 9g

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The atoms of Al in one mole = 6.023 X 10^23

Hence atoms of Al in 1/3 moles of Al = 6.023 X 10^23 / 3 = 2.007 X 10^23

So given statement is true

3) The mass of one mole of Ca = 40grams

The mass of one mole of Neon = 20grams

So yes one mole of Ca will weigh equal to two moles of Ne

4) The atomic mass of sodium = 23 g / mole

Thus 23 grams of sodium contains 6.022×1023 atoms and not 11.495 g of sodium

4 0

4 years ago