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frez [133]
3 years ago
15

A rock's mass is a:

Chemistry
1 answer:
Alekssandra [29.7K]3 years ago
7 0

Answer:

all of the above

Explanation:

now I will bless you with this-

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Why are the chemicals in the water turning the phrogs gay?
Liula [17]

Answer:

Yes

Explanation:

7 0
3 years ago
Write a balanced chemical equation showing how each metal oxide reacts with HCl. SrO Na2O Li2O BaO
Agata [3.3K]

Answer:

See below  

Explanation:

Each metal oxide reacts with HCl to form water and the metal chloride

\rm SrO + 2HCl \longrightarrow SrCl_{2} + H_{2}O\\\\Na_{2}O + 2HCl \longrightarrow 2NaCl + H_{2}O\\\\Li_{2}O + 2HCl \longrightarrow 2LiCl + H_{2}O\\\\BaO + 2HCl \longrightarrow BaCl_{2} + H_{2}O

6 0
3 years ago
Read 2 more answers
A gas occupies 3.5L at 2.5 kPa pressure. What is the volume at 100 mmHg at the same temperature? Be sure to
nataly862011 [7]

Answer:

V₂ = 0.656 L

Explanation:

Given data:

Initial volume = 3.5 L

Initial pressure = 2.5 KPa

Final volume = ?

Final pressure = 100 mmHg (100/7.501=13.33 KPa)

Solution:

The given problem will be solved through the Boyle's law,

"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"

Mathematical expression:

P₁V₁ = P₂V₂

P₁ = Initial pressure

V₁ = initial volume

P₂ = final pressure

V₂ = final volume  

Now we will put the values in formula,

P₁V₁ = P₂V₂

2.5 KPa × 3.5 L = 13.33 KPa × V₂

V₂ = 8.75 KPa. L/13.33 KPa

V₂ = 0.656 L

7 0
3 years ago
Which family contains elements with a full octet of valence electrons?
iren [92.7K]
D. the noble gasses !!!!
5 0
4 years ago
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Can somebody help me with this question please
Tasya [4]

Answer:

concave lens

Explanation:

it's concave lens because it diverges the ray/beam of light.

7 0
3 years ago
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