All categories

2 years ago

I don’t understand how to do this

Chemistry

1 answer:

padilas [110]2 years ago

6 0

Answer:

do what?????

Explanation:

You might be interested in

Which is the first news paper of Nepal

Airida [17]

Answer:

Nepal Bhasa Patrika

Explanation:

Nepal Bhasa Patrika

3 0

2 years ago

What is the empiracle formula of amylose?

Jlenok [28]

Answer:

(C6H10O5)n

Explanation:

8 0

2 years ago

Red lights on a traffic light have a frequency of 4.3 X 10^15 Hz. What is the red light’s wavelength in meters? (Speed of light

Juliette [100K]

Answer:

The correct answer to this problem is B. 7.0 X 10^-8 meters

Explanation:

To solve this problem, we have to use the following equation:

c = λν, or speed of light = wavelength*frequency

If we substitute in the values we are given by the problem, we get:

3.00 * 10^8 m/s = (4.3 * 10^15 Hz)*(wavelength)

wavelength = 6.98 * 10^-8 m

Since the given value has 2 significant figures, our answer should similarly include two significant figures since the operation in the problem was multiplication.

Therefore, the answer is B. 7.0 X 10^-8 meters.

Hope this helps!

6 0

2 years ago

A super slow snail can travel 2.2cm in one minute. How far (in pm) can it travel in 24 hours? Please round to appropriate number

Cloud [144]

Answer : The distance covered by slow snail in 24 hours is $3.2\times 10^{13}pm$

Explanation :

As we are given that the a slow snail can travel 2.2 cm in 1 minute. Now we have to calculate the distance covered by slow snail in 24 hours.

First we have to convert 24 hours in minutes.

Conversion used : (1 hour = 60 minutes)

As, 1 hour = 60 minutes

So, 24 hour = 24 × 60 minutes

= 1440 minutes

Now we have to calculate the distance covered by slow snail in 24 hours.

In 1 minute, the distance covered by slow snail = 2.2 cm

In 1440 minute, the distance covered by slow snail = 1440 × 2.2 cm

= 3168 cm

= $3.2\times 10^3cm$

Now we have to convert 'cm' into 'pm'.

Conversion used : $1cm=10^{10}pm$

As, $1cm=10^{10}pm$

So, $3.2\times 10^3cm=\frac{3.2\times 10^3cm}{1cm}\times 10^{10}pm=3.2\times 10^{13}pm$

Therefore, the distance covered by slow snail in 24 hours is $3.2\times 10^{13}pm$

4 0

3 years ago

Mixing hydrochloric acid (HCl) and aqueous calcium hydroxide produces water and aqueous Calcium Chloride. Write the complete and

swat32

Answer:

HCI+Ca(OH)2

Explanation:

6 0

2 years ago