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ozzi
3 years ago
5

What is the result of 2.58×0.12, including correct significant figures? Select the correct answer below: 0.3096 0.31 0.310 0.3

Chemistry
2 answers:
Masteriza [31]3 years ago
7 0

Answer:

wrnognioegnewoiegoi

Explanation:

Pavel [41]3 years ago
5 0

Answer:

The answer would depend on the required significant number.

Explanation:

0.3096 is the complete answer

0.31 is the answer when the hundredths place is asked

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In your own words, explain how gametes (the cells made for sexual reproduction) differ from normal body cells.
NNADVOKAT [17]

Answer:

gametes have to become haploid - they have to reduce their genetic material to a single copy, while somatic cells are diploid

Explanation:

7 0
3 years ago
Read 2 more answers
Red light has a wavelength of about 6.5 x 10-7m. Find its frequency. Show all work.
ozzi
For this problem we use the wave equation. It is expressed as the speed (c) is equal to the product of frequency (f) and wavelength (v).

c = v x f

We know the wavelength of the an red light which is 6.5 x 10^-7 m. Now, we solve for the wavelength of the unknown wave to see the relation between the two waves.

2.998 X 10^8 = 5.3 X 10^15 X v
v = 2.998 X 10^8 / (5.3 X 10^15) = 5.657 X 10^-8 m

Therefore, the wavelength of the unknown wave is less than the wavelength of the red light.
3 0
3 years ago
The stronger the intermolecular forces, the _______the energy needed to separate the molecules, the ____________the boiling poin
slamgirl [31]

Answer:

higher, higher

Explanation:

It takes more energy to rip apart stronger bonds (that's mostly just common sense there). The boiling point increases because it would take more energy to get the molecules to go from a stuck together liquid, to separating in a gaseous form.

7 0
3 years ago
How are endothermic and exothermic reactions the same how are they different?
svetoff [14.1K]

Endothermic reactions and Exothermic reaction are never the same.

They are both different.

Definitions

<span><span>Endothermic:- reactions that take in energy. For example:- electrolysis, thermal decomposition and the reaction between ethanic acid and sodium carbonate.
</span><span>Exothermic:- reactions that transfer energy to the surroundings. For example:- burning, neutralisation and the reaction between water and calcium oxide.</span></span>
3 0
3 years ago
Which term is used to measure a star's brightness?​
Romashka-Z-Leto [24]

Answer:

Magnitude

Explanation:

Astronomers define star brightness in terms of  magnitude (how bright the star appears from Earth)

5 0
3 years ago
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