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3 years ago

What has a positive charge

Chemistry

1 answer:

larisa [96]3 years ago

5 0

Answer:

A proton carries a positive charge and an electron carries a negative charge

Explanation:

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A piece of an unknown metal has a volume of 19.8 ml and a mass of 210.0 grams. The density of the metal is g/mL A piece of the s

leva [86]

<u>Answer:</u> The density of the metal is 10.60 g/mL and the volume occupied by 86.0 grams is 8.11 mL

<u>Explanation:</u>

To calculate the density of unknown metal, we use the equation:

$\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}$ ......(1)

Volume of unknown metal = 19.8 mL

Mass of unknown metal = 210.0 g

Putting values in equation 1, we get:

$\text{Density of unknown metal}=\frac{210.0g}{19.8mL}\\\\\text{Density of unknown metal}=10.60g/mL$

The density of the metal remains the same.

Now, calculating the volume of unknown metal, using equation 1, we get:

Density of unknown metal = 11.45 /mL

Mass of unknown metal = 86.0 g

Putting values in above equation, we get:

$10.60g/mL=\frac{86.0g}{\text{Volume of unknown metal}}\\\\\text{Volume of unknown metal}=8.11mL$

Hence, the density of the metal is 10.60 g/mL and the volume occupied by 86.0 grams is 8.11 mL

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What element has the smallest atomic radius

Mariulka [41]

Helium has the smallest atomic radius® Α⇒Ω

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The force needed to make an object with a mass of 5kg accelerate at 10 m/sec2 = Question 5 options:

astraxan [27]

Explanation:

<h3>Here, mass = 5kg </h3><h3> acceleration = 10m/s^2</h3>

<h3>according to the question ;</h3><h3>F = m×a ( from 2nd law of motion)</h3><h3>F = 5kg × 10m/s^2</h3><h3>F = 50kgm/s^2 or NEWTON </h3>

<h3>SO THE FORCE NEEDED IS 50 NEWTON</h3>

<h2>I HOPE THAT THIS ANSWER HELPS YOU </h2>

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What has a positive charge​

What has a positive charge