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4 years ago

Which of the following is true about centripetal force? Check all that apply

2 answers:

5 0

The correct answers are B, C and E. Explanation: Centripetal force: It is the force which is required to keep the body in

icang [17]4 years ago

5 0

Answer:

B, C, and E.

Explanation:

Hope this helped you!

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1.5 atm is the same pressure as... (1 atm<br> 760 mmHg)

Darina [25.2K]

<h3>Answer:</h3>

1100 mmHg

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

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right<u> </u>

<u>Chemistry</u>

Pressure

<u>Stoichiometry</u>

Using Dimensional Analysis

<h3>Explanation:</h3>

<u>Step 1: Define</u>

[Given] 1.5 atm

[Solve] mmHg

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

1 atm = 760 mmHg

<u>Step 3: Convert</u>

[DA] Set up: $\displaystyle 1.5 \ atm(\frac{760 \ mmHg}{1 \ atm})$
[DA] Multiply/Divide [Cancel out units]: $\displaystyle 1140 \ mmHg$

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 2 sig figs.</em>

1140 mmHg ≈ 1100 mmHg

3 0

3 years ago

How many moles of calcium hydroxide, ca(oh)2, are needed to neutralize 2 moles of sulfuric acid, h2so4?

Ronch [10]

The balanced equation for the neutralisation reaction is as follows
Ca(OH)₂ + H₂SO₄ ---> CaSO₄ + 2H₂O
stoichiometry of Ca(OH)₂ to H₂SO₄ is 1:1
equivalent number of acid reacts with base
number of H₂SO₄ mol reacting - 2 mol
according to molar ratio of 1:1
number of Ca(OH)₂ mol = number of H₂SO₄ moles
therefore number of Ca(OH)₂ moles required - 2 mol

3 0

3 years ago

When a substance is added to water, bubbles form. How can you confirm the type of change that took place?

weeeeeb [17]

A
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4 0

3 years ago

PLEASE HELP- I WILL GIVE BRAINLIEST AND THANKS

julsineya [31]

Answer:

The mass of 10 cm³of a 0.4 g/dm³ solution of sodium carbonate is 0.004 grams

Explanation: