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Dennis_Churaev [7]
3 years ago
6

Which of the following happens during a lunar eclipse?

Chemistry
2 answers:
garik1379 [7]3 years ago
6 0
A.)
During a lunar eclipse the earth gets in the way of the moon and blocks the sun’s light from it.
Paladinen [302]3 years ago
6 0

Answer:

The answer is A: Earth casts a shadow on the moon.

Explanation:

A lunar eclipse occurs when the earth passes between the sun and the moon, and the three of them are aligned. As the light of the moon that we see from the earth is actually the reflection of the sun's rays on it, when the earth is between the moon and the sun, it doesn't let the sun's rays to reach the moon, so what we see is the shadow of the earth over the moon.

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Which of the following is similar among all living organisms on Earth?
statuscvo [17]

A. cellular function

 hope this helps :)

5 0
3 years ago
What best explains why sodium is more likely to react with another element than an element such as neon
goblinko [34]

Answer: Neon is not reactive (full valence shell)

Explanation:

Neon is a noble gas and has a stable structure (8 valence electrons) -therefore, is not very reactive.

3 0
3 years ago
An aqueous solution of sodium hydroxide is standardized by titration with a 0.170 M solution of perchloric acid. If 28.5 mL of b
Ray Of Light [21]

Answer:

0.095M

Explanation:

HClO4 + NaOH = NaClO4 + H2O

Concentration of acid CA= 0.170M

Concentration of base CB= ???

Volume of base VB= 28.5ml

Volume of acid VA= 16.0ml

Number of moles of acid nA= 1

Number of moles of base nB= 1

From

CAVA/CBVB= nA/nB

CB= CAVAnB/VBnA

CB= 0.170×16.0×1/28.5×1

CB= 0.095M

4 0
3 years ago
Balance in basic solution: O2(g) + Cr³+ (aq) → H₂O2 (1) + Cr₂O7²- (aq)
likoan [24]

cr2o72+H2o2-(r3+o2)

Explanation:

r62o72+H2o2-(r3+o2)

3 0
3 years ago
24. The air in a small 250 cm birthday balloon is at a pressure of 760 torr. A boy sits on it at
kvv77 [185]

Answer:

1.14atm

Explanation:

Given parameters:

V1 = 250cm³ ;

              1000cm³ = 1dm³;  so this is 0.25dm³

P1  = 760torr

            760torr  = 1atm

       

V2  = 220cm³ ; 0.22dm³

Unknown:

New pressure = ?

Solution:

To solve this problem, we apply Boyle's law and we use the expression below:

       P1 V1 = P2V2

The unknown is P2;

            1 x 0.25  = P2 x 0.22

                 P2  = 1.14atm

7 0
2 years ago
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