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Lostsunrise [7]
2 years ago
7

Which of the following is an example of a chemical change that occurs during weathering?

Chemistry
2 answers:
nlexa [21]2 years ago
7 0

Answer: Acids from the lichens growing on the rock breaks down the rock into soil

Explanation:

gayaneshka [121]2 years ago
3 0

Answer:

D. Acids from the lichens growing on the rock breaks down the rock into soil

Explanation:

because acid is a chemical

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In Rutherford's golf foil experiment, no a particles stuck to the atom. If a particles had stuck to the atom, what might you hav
borishaifa [10]

Answer

:yes or no

Explanation:

you needd tol try it yolurself

4 0
3 years ago
How many moles are 1.20 x 1025 formula units of calcium iodide?
madam [21]

Answer:

19.9 mol

Explanation:

Use <em>Avogadro’s number</em> to convert formula units of CaI₂ to moles of CaI₂.

1 mol CaI₂ ≡ 6.022 × 10²³ formula units CaI₂

Moles of CaI₂ = 1.20 × 10²⁵ × (1 /6.022 × 10²³)

Moles of CaI₂ = 19.9 mol

6 0
3 years ago
Is hot tea homogeneous or heterogeneous?
OleMash [197]
<span>homogeneous  because particles are mixed uniformly</span>
6 0
3 years ago
Natural remedies are usually more effective and safer because they have thoroughly tested .
mihalych1998 [28]
The answer for this question would be B) False or the second option.

Answer is FALSE: ✅
6 0
3 years ago
Please help!!
Olegator [25]
Molarity =  Moles/Liter

Use the molecular atomic mass of NaCl to convert from grams to moles.
Molecular mass of NaCl is the sum of its atomic masses. Look at the periodic table to find these. Na is 23 g/mol and Cl is 35.5 g/mol ,
so NaCl = 23 + 35.5 = 58.5 g/mol

multiply to cancel out grams
76 g NaCl * (1mol / 58.5 g NaCl) = 1.3 mol NaCl

over 1 Liter is just 1.3 M NaCl
Hope this helps!
8 0
3 years ago
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