3 years ago

Which would be an example of a compound? oxygen carbon dioxide sand carbon

Chemistry

1 answer:

GenaCL600 [577]3 years ago

4 0

Answer:

carbondioxide is an example of compound.

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Please help me answer all of these questions! Will give brainliest answer and a heart (probably 5 stars) please and thank you. h

Stels [109]

Answer:

Send me another picture of this so I can help you

5 0

3 years ago

Question 11 (5 points)

LenKa [72]

Answer:

False

Explanation:

On the left side of the equation (Li + O2), there is 1 Li atom and 2 O atoms.

but on thw right side of the equation (Li2O,) there is 2 Li atoms and 1 O atom

8 0

3 years ago

Use the de Broglie's Wave Equation to find the wavelength of an electron moving at 7.3 × 106 m/s. Please show your work. Note: h

ad-work [718]

Answer:

$\lambda=9.96\times 10^{-11}\ m$

Explanation:

The expression for the deBroglie wavelength is:

$\lambda=\frac {h}{m\times v}$

Where,

$\lambda$ is the deBroglie wavelength

h is Planck's constant having value $6.62607\times 10^{-34}\ Js$

m is the mass of electron having value $9.11\times 10^{-31}\ kg$

v is the speed of electron.

Given that v = $7.3\times 10^6\ m/s$

Applying in the equation as:

$\lambda=\frac {h}{m\times v}$

$\lambda=\frac{6.62607\times 10^{-34}}{9.11\times 10^{-31}\times 7.3\times 10^6}\ m$

$\lambda=\frac{10^{-34}\times \:6.626}{10^{-25}\times \:66.503}\ m$

$\lambda=\frac{6.626}{10^9\times \:66.503}\ m$

$\lambda=9.96\times 10^{-11}\ m$

6 0

3 years ago

Calculate the heat absorbed/released (in Joules) by the solution when the cold pack solid dissolved in water in your experiment.

skad [1K]

Answer:

56765

Explanation:

i did the math and this is the answer

8 0

2 years ago

Find the density of an object that has a mass of 6.13 g and volume of 1.50 cm³.

storchak [24]

Answer:

≈ 4.10 g/cm³

Explanation:

Hi there !

Density formula

d = m/V

d = 6.13g/1.5cm³

d = 4.08(6) g/cm³ ≈ 4.10 g/cm³

Good luck !

8 0

3 years ago