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GREYUIT [131]
3 years ago
8

The graph of y = 3x2 + 12x + 11 is shown.

Chemistry
1 answer:
Elza [17]3 years ago
5 0

Explanation:

3*2=6

12x+11=23x

23x+6=29x

x=2

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Based on the diagram below, how much of the excess reactant is left over? *
pantera1 [17]

Answer:

3 pieces of lunch-meat and 2 slices of cheese

Explanation:

You have enough bread to make 3 sandwiches

You have enough lunch-meat to make 4 sandwiches

You have enough cheese to make 5 sandwiches

In all you have enough material to make 3 sandwiches

so if you subtract three from each number above you will have no bread, enough lunch-meat to make one sandwich and enough cheese to make two sandwiches

luch-meat for one sandwich is: 3 pieces

Cheese for two sandwiches is:  2 pieces

5 0
3 years ago
How can you describe the location of magnesium (Mg, atomic number 12) periodic table?
olga_2 [115]
The answer is C because it's asking for the location, not the type of element it is like a metal, nonmetal, or metalloid.
8 0
3 years ago
Read 2 more answers
Use the drop-down menus to complete each sentence.
alina1380 [7]

Answer:

protists are part of the domain eukarya

protists make up the kingdom protista

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6 0
3 years ago
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How many atoms of sulfur, S, are in 4.00 g sulfur?
Angelina_Jolie [31]
<h3>Answer:</h3>

7.51 × 10²² atoms S

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

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Chemistry</u>

<u>Atomic Structure</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis
  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
<h3>Explanation:</h3>

<u>Step 1: Define</u>

4.00 g S

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

Avogadro's Number

Molar Mass of S - 32.07 g/mol

<u>Step 3: Convert</u>

  1. Set up:                              \displaystyle 4.00 \ g \ S(\frac{1 \ mol \ S}{32.07 \ g \ S})(\frac{6.022 \cdot 10^{23} \ atoms \ S}{1 \ mol \ S})
  2. Multiply:                            \displaystyle 7.51107 \cdot 10^{22} \ atoms \ S

<u>Step 4: Check</u>

<em>Follow sig figs and round. We are given 3 sig figs.</em>

7.51107 × 10²² atoms S ≈ 7.51 × 10²² atoms S

5 0
2 years ago
How many molecules are produced when 59.4 g of water is decomposed by electrolysis to make oxygen and hydrogen?
BabaBlast [244]
The answer will be

.
.
.
4.88 x 1023 molecules of O2

8 0
3 years ago
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