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3 years ago

10

How do i find anion and cations??

2 answers:

USPshnik [31]3 years ago

7 0

If you know how to write electronic configuration for an atom, you can predict whether the atom will form a cation or anion.

I couldn’t understand your question. Can you please be more specific

Llana [10]3 years ago

3 0

A metal reactions form the molecules

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How does density differ from concentration?

Aliun [14]

The main difference between concentration and density is that concentration refers to how much of a substance is present in a mixture, whereas density refers to the mass of a substance per unit volume.

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3 years ago

How much heat in j is giving out when 85.0g of lead cools from 200.0 c to 10.0c

photoshop1234 [79]

Answer:

q = - 2067.2 J of Heat is giving out when 85.0g of lead cools from 200.0 c to 10.0 c.

Explanation:

The Specific Heat capacity of Lead is 0.128 $\frac{J}{g\ ^{0}C}$

This means, increase in temperature of 1 gm of lead by $1 ^{0}\ C$ will require 0.128 J of heat.

Formula Used :

$q = m.c.\Delta T$

q = amount of heat added / removed

m = mass of substance in grams = 85.0 g

c = specific heat of the substance = 0.128

$q = m.c.\Delta T$ = Change in temperature

= final temperature - Initial temperature

= 10 - 200

= - $190 ^{0}\ C$

put value in formula

q = - $85\times 0.128\times 190$

On calculation,

q = - 2067.2 J

- sign indicates that the heat is released in the process

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3 years ago

What does he want? change into passive

Marina CMI [18]

There’s no picture if you meant to add a picture

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3 years ago

Ham radio operators often broadcast on the 6-meter band. The frequency of this electromagnetic radiation is MHz. [speed of light

Volgvan

Answer:

50 MHz

Explanation:

The relation between frequency and wavelength is shown below as:

$c=frequency\times Wavelength$

c is the speed of light having value $3\times 10^8\ m/s$

Given, Wavelength = 6 m

Thus, Frequency is:

$Frequency=\frac{c}{Wavelength}$

$Frequency=\frac{3\times 10^8}{6}\ Hz$

$Frequency=50\times 10^{6}\ Hz$

Also,

Also, 1 Hz = $10^{-6}$ MHz

So,<u> Frequency = 50 MHz.</u>

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3 years ago

When an electric current passes through water, _____ takes place, breaking down the compound into hydrogen and oxygen. a physica

PSYCHO15rus [73]

Electrolysis takes place when an electric current passes through water.

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3 years ago

Read 2 more answers