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3 years ago

Which term identifies the light areas of the moon?

Chemistry

2 answers:

wlad13 [49]3 years ago

7 0

Answer:

The correct answer is terrae.

Explanation:

Terrae is defined as a roughly highland or mountainous region on moon with relatively higher brightness (albedo).

Regolith is defined as layer of lose heterogeneous materiel covering on the rocks like: soil ,dust, broken rocks and other materials etc.

Crater is defined as depression or hollowed areas appearing like holes. These craters are formed due to collisions of meteorites with surface of moon.

Maria are defined as dark plains on the surface of the moon formed due to volcanic eruption.

Hence, the correct answer is terrae.

docker41 [41]3 years ago

3 0

The correct answer is terrae.

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Calculate the energy in joules and calories required to heat 25.0 g of water from 12.5C to 25.7C

Alex Ar [27]

The heat (Q) required to raise the temp of a substance is:<span>Q=m∗Cp∗ΔT</span><span> where m is the mass of the object (25.0g in this case), Cp is the specific heat capacity of the substance (for water Cp = 1.00cal/gC, or 4.18J/gC,
and Dt is the change in temp.
You'll have to solve this twice, once with the Cp in calories, and once with the Cp in joules.
</span><span>1380.72 Joules</span>

8 0

3 years ago

What is the relationship between atoms, elements and compounds?

KatRina [158]

Compound is formed when two or more chemical elements are chemically bonded together. elements are made of atoms

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3 years ago

Calculate the ph at the equivalence point for the titration of 0.230 m methylamine (ch3nh2) with 0.230 m hcl. the kb of methylam

Vlad1618 [11]

Answer: The pH at the equivalence point for the titration will be 0.65.

Solution:

Let the concentration of $[OH^-]$ be x

Initial concentration of $[CH3NH_2]$ , c = 0.230 M

$CH_3NH_2+H_2O\rightleftharpoons CH_3NH_3^++OH^-$

at eq'm c-x x x

Expression of $K_b$ :

$K_b=\frac{[CH_3NH_3^+][+OH^-]}{[CH_3NH_2]}=\frac{x\times x}{c-x}=\frac{x^2}{c-x}$

Since ,methyl-amine is a weak base,c>>x so $c-x\approx c$ .

$K_b=\frac{x^2}{c}=5.0\times 10^{-4}=\frac{x^2}{0.230 M}$

Solving for x, we get:

$x=1.07\times 10^{-2} M$

Given, HCl with 0.230 M , it dissociates fully in water which means $[H^+]$ = 0.230 M

$[OH^-]=[H^+]$ will result in neutral solution, since $[OH^-]$

Remaining $[H^+]$ after neutralizing $[OH^-]$ ions

$[H^+]_{\text{left in solution}}=[H^+]-[OH^-]=0.230-1.07\times 10^{-2}=0.2193 M$

$pH=-log{[H^+]_{\text{left in solution}}=-log(0.2193)=0.65$

The pH at the equivalence point for the titration will be 0.65.

8 0

4 years ago

You work in a museum that has a huge, beautiful stamed-glass window: Each gamell dints the light a different coice. Recenty up a

borishaifa [10]

The plant that should be moved here to protect from malnourishment is plant 3. The correct option is C.

<h3>What is visible spectrum?</h3>

The visible light spectrum is the portion of the electromagnetic spectrum that can be seen by the human eye. Simply put, this range of wavelengths is known as visible light.

The visible spectrum, also known as the optical spectrum, is the portion of the electromagnetic spectrum whose radiation consists of photons capable of sensitizing a normal person's human eye. The corresponding visible light radiation range is identified.

That being said, plant 3 is situated in front of a green stained glass window.

Plants have chlorophyll pigment that reflects back green light, making green light less effective for photosynthesis and causing them to die as quickly as if they were kept in the dark.

Thus, the correct option is C.

For more details regarding visible spectrum, visit:

brainly.com/question/12807557

#SPJ1

3 0

1 year ago

Which element has 2 valence electrons in the 2s sublevel?

Karo-lina-s [1.5K]

Answer:

beryllium is the answer.

I hope this will help you

6 0

4 years ago