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3 years ago

FAN AND MEDAL

2 answers:

3 0

The correct answer is false. A compound microscope can magnify something up to 200 times and further. A compound microscope is a microscope with more than one lens and its own source of light. Today's strongest compound microscopes have magnifying powers of 1000 times to 2000 times.

Ulleksa [173]3 years ago

3 0

The correct answer is False

Explanation:

A microscope is an instrument used in many scientific fields including biology and chemistry to magnify the image of an object and therefore study and look at it, which is not possible without a microscope due to the limitations of the human eye. Additionally, a compound microscope is a type of microscope that includes multiple lenses to magnify objects and therefore, allows scientist to observe the same object with different sizes. About this, it is important to mention the range objects can be magnified depends on the type of microscopes but in general terms, this type of microscope include lenses that magnify objects from 10 times to around 400 times, and especial microscopes can magnify objects up to 1000 times. Thus, it is false a compound microscope can magnify something only up to 200 times.

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The graph shows the solubility of several different salts in water, across a range of temperatures. According to the

sladkih [1.3K]

Answer:

Sodium chloride

See the graph attached

Explanation:

The attached graph with a green and a red arrow facilitates the understanding of this explanation.

To read the solubility on the graph, you can start with the temperature, on the x-axis.

The red vertical arrow shows how, departing from the 40ºC temperature on the x-axis, you intersect the solutibility curve of sodium chloride at a height (y-axis) corresponding to 60 g/100cm³ of water (follow the green horizontal arrow).

Hence, sodium chloride is the salt that can dissolve at a concentration of about 60g/100cm³ of water at 40ºC.

4 0

3 years ago

Read 2 more answers

A 2.40 kg block of ice is heated with 5820 J of heat. The specific heat of water is 4.18 J•g^-1•C^-1. By how much will it’s temp

MrMuchimi

Answer: The temperature rise is $0.53^0C$

Explanation:

The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.

$Q=m\times c\times \Delta T$

Q = Heat absorbed by ice = 5280 J

m = mass of ice = 2.40 kg = 2400 g (1kg=1000g)

c = heat capacity of water = $4.18J/g^0C$

Initial temperature = $T_i$

Final temperature = $T_f$

Change in temperature , $\Delta T=T_f-T_i=?$

Putting in the values, we get:

$5280J=2400g\times 4.18J/g^0C\times \Delta T$

$\Delta T=0.53^0C$

Thus the temperature rise is $0.53^0C$

0 0

3 years ago

This pair of molecules are _____.The figure shows two ball-and-stick models of molecules. The first consists of five black balls

lys-0071 [83]

Answer:

Alkanes

Explanation:

The description of the first molecule corresponds to a cycloalkane. In the cycloalkanes for each carbon atom there are 2 hydrogen atoms (CnH2n = C5H10).

The second molecule corresponds to an open chain alkane, where for every carbon atom there is double plus 2 hydrogen atoms (CnH (2n + 2) = C5H12)

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3 years ago

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What are the coefficients of the reactants and products in the balanced equation above? Remember to include H2O(l) and OH−(aq) i

tiny-mole [99]

Answer:

yes

Explanation:

3 0

3 years ago

MOST elements on the periodic table are?