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3 years ago

15

What will a balloon do to a cloth if its negatively charged

1 answer:

masya89 [10]3 years ago

3 0

Answer:

This involves negatively charged particles (electrons) jumping to positively charged objects. When you rub the balloons against the fabric they become negatively charged. They take some of the electrons from the fabric and leave them positively charged.

Explanation:

Negative charges attract to positive charges. If a balloon is not rubbed with the wool cloth, it has an equal amount of negative to positive charges, so it will attract to a rubbed balloon. When both balloons are rubbed with the wool cloth, the both receive negative charges, so they will repel each other.

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In a given chemical reaction, the energy of the products is less than the energy of the reactants. Which statement is true for t

RSB [31]

There is no transfer of energy in the reaction.

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3 years ago

At high temperatures, carbon reacts with O2 to produce CO as follows: C(s) O2(g) 2CO(g). When 0.350 mol of O2 and excess carbon

777dan777 [17]

Answer:

Value of $K_{c}$ is 0.090.

Explanation:

Initial molarity of $O_{2}$ = $\frac{0.350}{5.00}M$ = 0.0700 M

Construct an ICE table corresponding to the combustion reaction of carbon to determine $K_{c}$

$C(s)+O_{2}(g)\rightarrow 2CO(g)$

I (M): - 0.0700 0

C (M): - -x +2x

E (M): - 0.0700-x 2x

So, $K_{c}=\frac{[CO]^{2}}{[O_{2}]}$ , where [CO] and $[O_{2}]$ represents equilibrium concentration of CO and $O_{2}$ respectively.

Here, $[CO]=2x=0.060$

⇒x = 0.030

So, $[O_{2}]$ = 0.0700-x = (0.0700-0.030) = 0.040

Hence, $K_{c}=\frac{(0.060)^{2}}{0.040}=0.090$

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3 years ago

2. If 1.204 X 1024 atoms of sodium is 20% of the total sodium atoms in sodium

GuDViN [60]

Answer:

584.2 g

Explanation:

Hello there!

In this case, since we know the 20% of the atoms correspond to sodium, we can compute the total atoms as shown below:

$\frac{1.204 x10^{24}}{0.2}=6.02x10^{24}atoms$

Which are also equal to 1 mol and the Avogadro's number of sodium chloride with a molar mass of 58.44 g/mol; thus, the grams of salt turn out to be:

$6.02x10^{24}atoms*\frac{1mol}{6.022x10^{23}atoms} *\frac{58.44g}{1mol}\\\\=584.2g$

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3 years ago

The earth is only several thousands of years old.<br> True<br><br> False

Nadusha1986 [10]

Answer:

FALSE!

Explanation:

It was created millions of years ago.

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3 years ago

ANSWER PLEASE! QUICLKY!

Ira Lisetskai [31]

Do you know what mixture it is talking about?

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3 years ago

Read 2 more answers