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3 years ago

What forms of technology are scientists using to study El Nino

Chemistry

1 answer:

larisa [96]3 years ago

3 0

Answer:

a network of buoys.

Explanation:

It is operated by noaa. The buoys transmit some of the data on a daily basis to NOAA through a satellite in space.

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What causes the warm air to rise and cold air to sink

Natali5045456 [20]

The molecules in warm air are more expanded, move more rapidly and take up more room than in cold air. The expansion and movement of molecules makes it less dense, thus it rises above the cold air. Cold air molecules are more compressed, making them more still and packed together, thus making it more dense than warm air.

4 0

4 years ago

Write the orbital notation for the following<br> elements. <br> a. P<br> b. B<br> c. Na<br> d. C

Zigmanuir [339]

C maybe is the answer

8 0

3 years ago

Read 2 more answers

How many grams are in 3.5 moles of H2O?

Lerok [7]

Answer:

Explanation:

We assume you are converting between moles H2O and gram. You can view more details on each measurement unit: molecular weight of H2O or grams This compound is also known as Water or Dihydrogen Monoxide. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles H2O, or 18.01528 grams.

3 0

3 years ago

How many grams of silver chloride can be produced by reacting excess silver nitrate with 2.4 moles of zinc chloride? _____AgNO3

worty [1.4K]

<h3>Answer:</h3>

690 g AgCl

<h3>General Formulas and Concepts:</h3>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right<u> </u>

<u>Chemistry</u>

<u>Atomic Structure</u>

Reading a Periodic Table
Writing Compounds

<u>Stoichiometry</u>

Using Dimensional Analysis
Limiting Reactant/Excess Reactant

<h3>Explanation:</h3>

<u>Step 1: Define</u>

[RxN - Unbalanced] AgNO₃ + ZnCl₂ → AgCl + Zn(NO₃)₂

↓

[RxN - Balanced] 2AgNO₃ + ZnCl₂ → 2AgCl + Zn(NO₃)₂

[Given] 2.4 mol ZnCl₂

[Solve] <em>x</em> g AgCl

<u>Step 2: Identify Conversions</u>

[RxN] 1 mol ZnCl₂ → 2 mol AgCl

[PT] Molar Mass of Ag - 107.87 g/mol

[PT] Molar Mass of Cl - 35.45 g/mol

Molar Mass of AgCl - 107.87 + 35.45 = 143.32 g/mol

<u>Step 3: Stoich</u>

[DA] Set up: $\displaystyle 2.4 \ mol \ ZnCl_2(\frac{2 \ mol \ AgCl}{1 \ mol \ ZnCl_2})(\frac{143.32 \ g \ AgCl}{1 \ mol \ AgCl})$
[DA] Multiply/Divide [Cancel out units]: $\displaystyle 687.936 \ g \ AgCl$