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4 years ago

A(n) _______________ is a negatively charged ion

Chemistry

2 answers:

siniylev [52]4 years ago

3 0

An anion is a negatively charged ion.

Hope this helps xox :)

kolezko [41]4 years ago

3 0

Im sure a negatively ion is a negatively charge ion

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4 years ago

Which of the following is not a chemical property?

malfutka [58]

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3 years ago

If you were to look up at the moon and see the shape of the moon as a circle, what would the next observable shape in the cycle

svet-max [94.6K]

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Half circle

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2 years ago

The speed of a wave in the string is 16.2ms. The mass per unit length of the string is 0.3ms calculate tension in the string

liberstina [14]

Answer:

The tension in the string is 78.73 N.

Explanation:

The tension in the string can be determined from the expression;

v = $\sqrt{\frac{T}{m} }$

where: v is the speed of the wave in the sting, T is the tension in the string and m is the mass per unit length of the sting.

Given that: v = 16.2 m/s, and m = 0.3 kg/m.

Then;

16.2 = $\sqrt{\frac{T}{0.3} }$

Square both sides to have,

$(16.2)^{2}$ = $\frac{T}{0.3}$

T = $(16.2)^{2}$ x 0.3

= 252.44 x 0.3

= 78.732

T = 78.732 N

The tension in the string is 78.73 N.

6 0

3 years ago

A chemist needs 500.0 mL of a 1.500 M perchloric acid solution. The stockroom provides the chemist with

Lynna [10]

Answer:- 47.62 mL

Solution:- It is a dilution problem where we are asked to calculate the volume of 15.75 M perchloric acid solution required to make 500.0 mL of 1.500 M solution.

For solving this type of problems we use the dilution equation:

$M_1V_1=M_2V_2$

Where, $M_1$ is the concentration of the concentrated solution and $V_1$ is it's volume.

$M_2$ is the concentration of the diluted solution and $V_2$ is it's volume. Let's plug in the values in the equation and solve it for $V_1$ .

$15.75M(V_1)=1.500M(500.0mL)$

On rearranging this for $V_1$ :

$V_1=\frac{1.500M(500.0mL)}{15.75M}$

$V_1=47.60mL$

So, 47.62 mL of 15.75 M perchloric acid are required to make 500.0mL of 1.500 M solution.

3 0

4 years ago