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3 years ago

Which of the following coefficients will correctly

Chemistry

1 answer:

valentina_108 [34]3 years ago

8 0

Answer:

#2 is the answer

Bcuz 2 times 2 = 4

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Completion of the human genome map is it before or during

zysi [14]

Before............................

5 0

4 years ago

What intermolecular force(s) is/are present in solid SO3?

guapka [62]

Answer:

1. London dispersion

Explanation:

Sulphur trioxide ( SO₃ ) -

The chemical compound SO₃ is planar in structure , the only intermolecular forces shown by SO₃ is the London forces .

dipole - dipole is not observed in this compound , as it is not possible to generate poles between the sulfur and oxygen atom due to very less difference in the electronegativity .

Hydrogen bonding is also not observed , because there is not hydrogen atom .

Hence , only London forces are observed in SO₃ .

5 0

3 years ago

When solid Ni metal is put into an aqueous solution of Pb(NO3)2, solid Pb metal and a solution of Ni(NO3)2 result. Write the net

Sonja [21]

Answer:

$Pb^{2+}(aq)+Ni(s)\rightarrow Ni^{2+}(aq)+Pb(s)$

Explanation:

Hello there!

In this case, according to the given information, it turns out firstly necessary for us to write the complete molecular equation as shown below:

$Pb(NO_3)_2(aq)+Ni(s)\rightarrow Ni(NO_3)_2(aq)+Pb(s)$

Now, we can separate the nitrates in ions as they are aqueous to obtain:

$Pb^{2+}(aq)+2(NO_3)^-(aq)+Ni(s)\rightarrow Ni^{2+}(aq)+2(NO_3)^-(aq)+Pb(s)$

And then, we cancel out the nitrate ions as the spectator ones, for us to obtain the net ionic equation:

$Pb^{2+}(aq)+Ni(s)\rightarrow Ni^{2+}(aq)+Pb(s)$

Best regards!

6 0

3 years ago

a block of iron has the dimensions of 3.00 cm x 3.00 cm x 3.00 cm. it has a mass of 213 g. what is its density? a. 638 g/cm3 b.

Juliette [100K]

Volume = 3 cm × 3cm × 3cm
= 27 cm ³

Mass = 213 g

Density = $\frac{MASS}{VOLUME}$

= <span> $\frac{213 g}{27 cm ^{3} }$
</span>
<span> = 7.89 g / cm³

Thus answer is D.</span>

8 0

3 years ago

Read 2 more answers

1.The movement of particles from a less crowded area to a more crowded area requires

Harrizon [31]

1. Energy as particles can't move without kinetic (movement) energy
2. I think it's Diffusion and Active Transport

7 0

4 years ago