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ch4aika [34]
3 years ago
15

Sooo i suck at science like a lot . even tho i have a 70....can someone help me pls?

Chemistry
1 answer:
AleksAgata [21]3 years ago
7 0

Answer:

it is A

Explanation: the only way to possibly know that is if they are in the same level or if the dinosaur bones were found above the level of trilobites

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Complete the nuclear reaction.*
irina [24]

\boxed {_{-1}^0e}

Explanation:

\huge _{53}^{125}I\rightarrow _{54}^{125}Xe+\boxed {_{-1}^0e}

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3 years ago
What is bromin what is bromine what is bromine
yulyashka [42]

Answer:

Bromine is a chemical element with the symbol Br and atomic number 35. It is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly colored gas.

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A balloon with a volume of 38.2 L at 91 psi is allowed to expand into a larger can with a total volume of 77.4 L. What is the pr
adelina 88 [10]

Answer:

  • <u>45 psi</u>

Explanation:

<u>1) Data:</u>

a) V₁ = 38.2 liter

b) P₁ = 91 psi

c) V₂ = 77.4 liter

d) P₂ = ?

<u>2) Formula:</u>

According to Boyle's law, at constant temperature, the pressure and volume of a fixed amount of gas are inversely related:

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<u>3) Solution:</u>

  • Solve for the unknown: P₂ = P₁V₁ /v₂

  • Substitute the values: V₂ = 91 psi × 38.2 liter / 77.4 liter = 44.9 9si ≈ 45 psi.
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4 years ago
Match the layers of the atmosphere
Ira Lisetskai [31]

Answer:

What language is this please i need help

7 0
3 years ago
What is the balanced equation of K3PO4 + HCI -&gt; KCI + H3PO4?
laiz [17]

Answer:

K₃PO₄ + 3HCl ⇒ 3KCl + H₃PO₄

Explanation:

practice these, it gets easier. goal is to match the amount of reactants and products on both sides of the equation. cheers!

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