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aliina [53]
3 years ago
10

Which statement accurately describes the rock layers

Chemistry
1 answer:
ipn [44]3 years ago
7 0

Answer:

Layer 8 is older than layer 1

Explanation:

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Can y’all help me with this question How many atoms are found in the chemical formula below Al2( SiO3)2
Arte-miy333 [17]

Answer:

the answer is 10

Explanation:

Al2 is 2 atoms by itself

(SiO3)2 is 8 because Si is a single atom and O3 is 3 oxygen atoms but because of the subscript outside of the parentheses it doubles and becomes 2 and 6 respectively

7 0
2 years ago
Choose the word that correctly completes the analogy.
irakobra [83]

Answer:

Minera and Aragonite

Explanation:

Limestone is a common type of carbonate sedimentary rock. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate (CaCO 3). Limestone forms when these minerals precipitate out of water containing dissolved calcium.

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2 years ago
A gene is being copied to be passed from a parent to an offspring. While being copied from the parent, a
motikmotik
Mutation. Called this because the other possible answers do not equal a copying error, mutations affect the outcome.

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2 years ago
What volume would a 0. 250 mole sample of h2 gas occupy if it had a which a a pressure of 1. 70 atm and a temperature of 35 C?
frosja888 [35]

The volume of  0. 250 mole sample of H_{2} gas occupy if it had a pressure of 1. 70 atm and a temperature of 35 °C is  3.71 L.

Calculation,

According to ideal gas equation which is known as ideal gas law,

PV =n RT

  • P is the pressure of the hydrogen gas  = 1.7 atm
  • Vis the volume of the hydrogen gas = ?
  • n is the number of the hydrogen gas = 0.25 mole
  • R is the universal gas constant = 0.082 atm L/mole K
  • T is the temperature of the sample = 35°C = 35 + 273 = 308 K

By putting all the values of the given data like pressure temperature universal gas constant and number of moles in equation (i) we get ,

1.7 atm×V = 0.25 mole ×0.082 × 208 K

V = 0.25 mole ×0.082atm L /mole K × 308 K /1.7 atm

V = 3.71 L

So, volume of the sample of the hydrogen gas occupy is  3.71 L.

learn more about ideal gas equation

brainly.com/question/4147359

#SPJ4

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1 year ago
What is a level 7-8 grade science fair project I can do?
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