All categories

3 years ago

Collin uses balloons to investigate static electricity. Which of the following BEST

Chemistry

2 answers:

vovangra [49]3 years ago

5 0

Answer:

The positive and negative electrons (or protons, don't really know) are opposites, so they attract each other, giving a whole new meaning to "Opposites attract."

Explanation:

RUDIKE [14]3 years ago

4 0

The correct answer is the second and third one eighr

You might be interested in

What does it mean when a rock is foliares?

yan [13]

Started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.

6 0

3 years ago

Read 2 more answers

How many moles are represented by 3.01 x10^24 oxygen atoms?

asambeis [7]

<h3>Answer:</h3>

5.00 mol O₂

<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>

Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.<u> </u>

<u>Stoichiometry</u>

Using Dimensional Analysis

<h3>Explanation:</h3>

<u>Step 1: Define</u>

3.01 × 10²⁴ atoms O₂

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

Avogadro's Number

<u>Step 3: Convert</u>

Set up: $\displaystyle 3.01 \cdot 10^{24} \ atoms \ O_2(\frac{1 \ mol \ O_2}{6.022 \cdot 10^{23} \ atoms \ O_2})$
Multiply/Divide: $\displaystyle 4.99834 \ mol \ O_2$

<u>Step 4: Check</u>

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

4.99834 mol O₂ ≈ 5.00 mol O₂

4 0

3 years ago

No. Of particles in H2SO4 in which 8grams oxygen is present????

steposvetlana [31]

Answer:

Explanation:

Its somewhat hard to comprehend the question, but if the way I read it was right, its 7.

6 0

3 years ago

If the density of an object is 5.2g/cm3, and it’s volume is 3.7 cm3, what is it’s mass?

lord [1]

Here's the equation you use: Density = mass/volume

1) 5.2g/cm^3 = m/3.7cm^3

2) m = 5.2g/cm^3 x 3.7cm^3

3) m = 19.24g

You can check the answer by plugging it in

19.24g/3.7cm^3
= 5.2g/cm^3

5 0

3 years ago

Suppose that a substance in a beaker is heated over a burner in a science lab. Which observation would most likely indicate that

victus00 [196]

Answer:

Explanation:

the production of an odor would indicate that the heat ignited a chemical reaction

6 0

3 years ago

Read 2 more answers