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2 years ago

(b) Which of the following is a mixture?

Chemistry

1 answer:

bija089 [108]2 years ago

4 0

Answer:

Explanation:

Mixture is a combination of two or more elements and sodium is an element with a chemical symbol Na and a charge of +1 and chloride too is an element with a chemical symbol Cl and a charge of -1 so when these two elements are combine it form a chemical solution called Sodium chloride

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If you pump air into cycle tyre a slight warming effect is noticed at valve stem why

SSSSS [86.1K]

Probably the kinetic energy of rubbing the pump against the valve, combined with the increase in gas pressure in the tire itself.

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2 years ago

What evidence supports a conservation law?

Murljashka [212]

Answer:

A- Energy from sunlight becomes glucose during photosynthesis

Explanation:

The law of conservational photosynthetic energy states that atoms cannot be created nor destroyed; the atoms can only be rearranged into new molecules and ions. This implies that the enzymes in photosynthesis are aided by energy to transform into glucose, which the plant needs.

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1 year ago

Read 2 more answers

How many moles of S would I have if I had 11 grams? (Stoichiometry) HELP

zepelin [54]

<h3>Answer:</h3>

0.34 mol S

<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>

<u>Atomic Structure</u>

Reading a Periodic Table

<u>Stoichiometry</u>

Using Dimensional Analysis

<h3>Explanation:</h3>

<u>Step 1: Define</u>

11 g S

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

[PT] Molar Mass of S - 32.07 g/mol

<u>Step 3: Convert</u>

Set up: $\displaystyle 11 \ g \ S(\frac{1 \ mol \ S}{32.07 \ g \ S})$
Multiply/Divide: $\displaystyle 0.343 \ mol \ S$

<u>Step 4: Check</u>

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

0.343 mol S ≈ 0.34 mol S

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2 years ago

What absorbs the most light if it's shining on different objects?

bixtya [17]

Well, black would absorb the light, if that is in some way what you mean

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3 years ago

A particle that makes up the basic unit of an element is called an __________.

AleksAgata [21]

I think it’s atoms because of google

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3 years ago