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2 years ago

6th Grade Science question on Mass, Volume, and Density!! I've tried and tried and I can't figure it out!

Chemistry

1 answer:

Sonbull [250]2 years ago

8 0

If you want to find density, do mass divided by the volume and there’s your answer!

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Write the formula for calcium chloride

Sauron [17]

CaCI2 is for calcium chloride

7 0

3 years ago

What is the energy in joules of one photon of microwaveradiation with a wavelength 0.122m?

pentagon [3]

Answer: The energy of photon is $162.93\times 10^{-26}J$

Explanation:

The relation between energy and wavelength of light is given by Planck's equation, which is:

$E=\frac{hc}{\lambda}$

where,

E = energy of the light = ?

h = Planck's constant = $6.626\times 10^{-34}Js$

c = speed of light = $3\times 10^8m/s$

$\lambda$ = wavelength of photon = 0.122 m

Putting values in above equation, we get:

$E=\frac{(6.626\times 10^{-34}Js)\times (3\times 10^8m/s)}{0.122m}\\\\E=162.93\times 10^{-26}J$

Hence, the energy of photon is $162.93\times 10^{-26}J$

3 0

2 years ago

Identify each substance as an acid or a base.

svp [43]

Explanation:

The first one is a base

The second one is an acid

A base has a pH above 7

An acid has a pH below 7

Hope I helped!!! Have a great day!

4 0

2 years ago

Read 2 more answers

Rpd pls ii test :) tot ce se afla in poza

mamaluj [8]

Answer:

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2 years ago

Diatomic iodine [I2] decomposes at high temperature to form I atoms according to the reaction I2(g)⇌2I(g), Kc = 0.011 at 1200∘C

umka2103 [35]

Answer:

The concentration of I at equilibrium = 3.3166×10⁻² M

Explanation:

For the equilibrium reaction,

I₂ (g) ⇄ 2I (g)

The expression for Kc for the reaction is:

$K_c=\frac {\left[I_{Equilibrium} \right]^2}{\left[I_2_{Equilibrium} \right]}$

Given:

$\left[I_2_{Equilibrium} \right]$ = 0.10 M

Kc = 0.011

Applying in the above formula to find the equilibrium concentration of I as:

$0.011=\frac {\left[I_{Equilibrium} \right]^2}{0.10}$

So,

$\left[I_{Equilibrium} \right]^2=0.011\times 0.10$

$\left[I_{Equilibrium} \right]^2=0.0011$

$\left[I_{Equilibrium} \right]=3.3166\times 10^{-2}\ M$

Thus, The concentration of I at equilibrium = 3.3166×10⁻² M

3 0

3 years ago

6th Grade Science question on Mass, Volume, and Density!! I've tried and tried and I can't figure it out!​

6th Grade Science question on Mass, Volume, and Density!! I've tried and tried and I can't figure it out!