<h3>
Answer:</h3>
2 M
<h3>
General Formulas and Concepts:</h3>
<u>Math</u>
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Chemistry</u>
<u>Unit 0</u>
- Reading a Periodic Table
- Using Dimensional Analysis
<u>Aqueous Solutions</u>
- Molarity = moles of solute / liters of solution
<h3>
Explanation:</h3>
<u>Step 1: Define</u>
36.7 g CaF₂
300 mL H₂O
<u>Step 2: Identify Conversions</u>
Molar Mass of Ca - 40.08 g/mol
Molar Mass of F - 19.00 g/mol
Molar Mass of CaF₂ - 40.08 + 2(19.00) = 78.08 g/mol
1000 mL = 1 L
<u>Step 3: Convert</u>
<em>Solute</em>
- Set up:
- Multiply:
<em>Solution</em>
- Set up:
- Multiply:
<u>Step 4: Find Molarity</u>
- Substitute [M]:
- Divide:
<u>Step 5: Check</u>
<em>Follow sig fig rules and round.</em> <em>We are given 1 sig fig as our lowest.</em>
1.56677 M ≈ 2 M
Answer:
both magnets have the same charge...
Explanation:
The chemical element that is formed when I-131 undergoes beta-minus decay is Xe.
<h3>What is a beta minus decay?</h3>
A beta minus decay is one in which an electron is changed into a proton. The atomic number of the daughter nucleus will increase by one unit and is one place after the parent in the periodic table.
The chemical element that is formed when I-131 undergoes beta-minus decay is Xe.
Learn more about beta decay:brainly.com/question/25455333
#SPJ1
Answer:
Here's what I get
Explanation:
A. Prepare Ca(NO₃)₂ solution
Scoopula — to transfer the solid to an Erlenmeyer flask
Erlenmeyer flask — to hold the solid for weighing and to prepare the solution
Volumetric flask — to hold the liquid
Funnel — to transfer the solution to the volumetric flask
Wash bottle — to fill the volumetric flask to the mark
B. Weigh K₂SO₄
Scoopula — to transfer the solid to a weighing bottle
Weighing bottle — to hold the solid for weighing.
C. Add acetic acid to a volumetric flask
Volumetric flask — to hold the acid
Pipet —to measure out the acid and transfer it to the flask
Pipet bulb — safety feature for the pipet and for control of the acid volume.
D. Add NaOH to an acid
Beaker — to hold the NaOH solution
Ring stand — to hold a buret
Buret clamp — to hold the buret
Funnel — to transfer the solution to a buret
Buret — to hold the NaOH solution for addition to the acid