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Dimas [21]
3 years ago
13

How do you think the invention of the microscope influenced the cell theory?

Chemistry
1 answer:
ikadub [295]3 years ago
3 0
Since cells are hard to see the microscope helped them see. scientist were able to actually see cells in tissues placed under the microscope.
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In a diamond, what type of bonds link carbon atoms together to form a network solid?
never [62]

The answer is covalent bond

5 0
3 years ago
A 300-g aluminum cup contains 700 g of water in thermal equilibrium with the cup at 60°C. The combination of cup and water is co
Rus_ich [418]

Answer:

117.3 W is being removed.

Explanation:

The heat removed can be calculated as:

Q = m*c*ΔT

Where m is the mass, c is the specific heat and ΔT is the temperature variation. Because there're two components:

Q = mwater*cwater*ΔT + maluminum*caluminum*ΔT

Q = (mwater*cwater + maluminum*caluminum)*ΔT

Searching in a thermodynamic table:

cwater = 4.184 J/g°C

caluminium = 0.9 J/g°C

In 1 minute, the temperature decreases 2.2°C, so ΔT =  -2.2°C

Q = (700*4.184 + 300*0.9) * (-2.2)

Q = -7037.36 J

The rate of energy is the potency (P), which is the heat divided by the time. So, for 1 minute (60 s):

P = -7037.36/60

P = -117.3 J/s

P = -117.3 W

The minus signal indicates that the energy is being removed.

3 0
3 years ago
DIRECTIONS: Underline the selected word item that best completes the statements.
tigry1 [53]

Explanation:

(<u>Climate</u>, Weather) is an overall atmospheric condition of a place of 30 years and more while (Climate,<u>Weather</u>) is a condition for a short period of time.

2. (<u>Climate</u>, Weather) is influenced by latitude, altitude, ocean current, and topography.

3. The (<u>higher</u>, lower) the altitude, the (<u>colder</u>, warmer) the climate.

4. (<u>Windward</u>, Leeward) area of the mountain forms precipitation while (Windward,<u>Leeward)</u> gives dry air and warm weather.

5. Ocean currents bring (cold,<u> warm</u>) water and rain from the equator to the poles and (<u>cold</u>, warm) water from the poles toward the equator

3 0
3 years ago
Which statement best describes how hou measure density
dusya [7]

Answer:

density=mass/volume

Explanation:

density is defined as mass per unit volume.

6 0
3 years ago
What is the direction of heat flow that occurs between the dry ice and the air in the flask
Elan Coil [88]
Without an external doing work, heat will always flow from a hotter to cooler object. Two objects of different tempatures always interact. There are three different ways for heat to flow from one object to another. They are conduction, convention, and radiation. 
8 0
3 years ago
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