3 years ago

I have to make this question longer so im just typing thisgjfgjfjvndfi nufnvfjnvfjnjn vnfj

Chemistry

2 answers:

marin [14]3 years ago

7 0

Answer:

?????

Explanation:

Tanzania [10]3 years ago

6 0

Answer:

Ok, thank you

Explanation:

You might be interested in

Which uses of iron are due to its chemical properties? Select two options.

kondaur [170]

Answer:

producing colored sparks in fireworks and rusting in the presence of water and oxygen

Explanation:

yeet

5 0

3 years ago

Read 2 more answers

What is the daughter nucleus of pt-199 after a beta decay?

Setler79 [48]

B. At-200

In beta decay the atomic number increases by 1

6 0

3 years ago

Explain why oxygen has a higher ionization energy than phosphorus

muminat

Because it is less stable than phosphorous

8 0

3 years ago

What is the de Broglie wavelength (in meters) of a 45-g golf ball traveling at 72 m/s?

Cerrena [4.2K]

Answer: The de broglie wavelength is $2.037 \times 10^{-34} m$ .

Explanation:

Calculate $\lambda = \frac{h}{p}$ as follows.

$\lambda = \frac{h}{p}$

where,

h = plank's constant = $6.6 \times 10^{-34} m^{2} kg/s$

p = momentum = $mass \times velocity$

Putting the values in the formula as follows.

$\lambda = \frac{h}{mass \times velocity}$

= $\frac {6.6 \times 10^{-34} m^{2} kg/s}{0.045 kg \times 72 m/s}$

= $2.037 \times 10^{-34} m$

Thus, the de broglie wavelength is $2.037 \times 10^{-34} m$ .

6 0

3 years ago

Read 2 more answers

What is the weight of:

Dafna11 [192]

Answer:

Oxygen = 15.999 g/mol

Iron = 3 × 55.845 = 167.535 g/mol

CaCO3 = 20 × 100.0869 = 2001.738 g/mol

8 0

3 years ago