All categories

2 years ago

Which activities describe the use of technology in science? Check all that apply.

Chemistry

1 answer:

vova2212 [387]2 years ago

5 0

Answer:

These activities describe the use of technology in science.

1) looking at cells through a microscope.

2) viewing stars through a telescope.

5) developing a computer model for earthquakes.

Explanation:

The moment a scientific instrument/equipment is involved in any scientific activity, there is a use of technology is such scientific activity.

Machines and equipment like Computers, Telescopes, and Microscope are technological.

Check all that apply:

1) looking at cells through a microscope

2) viewing stars through a telescope

3) observing a plant with the unaided eye

4) creating a blank data table by hand in a notebook

5) developing a computer model for earthquakes

You might be interested in

During an earthquake, the ground surface moves _____. only in a vertical direction not at all in any direction only in a horizon

Elena L [17]

Answer:

In Any Direction

Explanation:

Rayleigh waves, also called ground roll, travel like ocean waves over the surface of the Earth, moving the ground surface up and down. They cause most of the shaking at the ground surface during an earthquake. Love waves are fast and move the ground from side to side.

6 0

3 years ago

Read 2 more answers

How long does it take the Earth to move from Point A to Point C?

Naddika [18.5K]

Answer:

the answer should be six months

5 0

2 years ago

If the initial [NO2] is 0.260 M, it will take ________ s for the concentration to drop to 0.150 M. If the initial is 0.260 , it

Nitella [24]

The question is incomplete, here is the complete question:

At elevated temperature, nitrogen dioxide decomposes to nitrogen oxide and oxygen gas

$NO_2\rightarrow NO+\frac{1}{2}O_2$

The reaction is second order for $NO_2$ with a rate constant of $0.543M^{-1}s^{-1}$ at 300°C. If the initial [NO₂] is 0.260 M, it will take ________ s for the concentration to drop to 0.150 M

a) 1.01 b) 5.19 c) 0.299 d) 0.0880 e) 3.34

Answer: The time taken is 5.19 seconds

Explanation:

The integrated rate law equation for second order reaction follows:

$k=\frac{1}{t}\left (\frac{1}{[A]}-\frac{1}{[A]_o}\right)$

where,

k = rate constant = $0.543M^{-1}s^{-1}$

t = time taken = ?

[A] = concentration of substance after time 't' = 0.150 M

$[A]_o$ = Initial concentration = 0.260 M

Putting values in above equation, we get:

$0.543=\frac{1}{t}\left (\frac{1}{(0.150)}-\frac{1}{(0.260)}\right)\\\\t=5.19s$

Hence, the time taken is 5.19 seconds

6 0

3 years ago

An electric current can be conducted by _____. a sugar solution rubbing alcohol methane gas a salt solution

VMariaS [17]

The answer is salt water.

Salt water can conduct electricity or we can say that an electric current is conducted by salt water as salt water is a good conductor of electricity when salt that is sodium chloride or NaCl is dissolved in water , positively charged sodium (Na⁺) and negatively charged chlorine(Cl⁻) molecules are set apart by the water molecule so that they can float easily and freely. We can define the conductivity of a substance as the mobility or movement of ions. So as in water, sodium and chlorine are set apart and can move freely so it become a electrolyte that can conduct electricity.

4 0

3 years ago

Read 2 more answers

What is a hot spot? Own words

Grace [21]

Answer: Hotspot: A hotspot is a physical location where people can access the Internet, typically using Wi-Fi, via a wireless local area network (WLAN) with a router connected to an Internet service provider. ... While many public hotspots offer free wireless access on an open network, others require payment.

A hot spot is an area on Earth over a mantle plume or an area under the rocky outer layer of Earth, called the crust, where magma is hotter than surrounding magma. The magma plume causes melting and thinning of the rocky crust and widespread volcanic activity.

Explanation: MY own word's.

6 0

2 years ago