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3 years ago

What exactly is a lode

Chemistry

2 answers:

Aloiza [94]3 years ago

4 0

Answer:

A veinlike deposit, usually metalliferous.

Any body of ore set off from adjacent rock formations.

A rich supply or source

Olenka [21]3 years ago

3 0

Explanation:

noun aa vein of mental ore in the Earths core

a rich source of somthing

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Please help!!! Important. (Click on photo)I’ll give branliest and 30 points! (I put it as chemistry but it’s science)

stepan [7]

Answer:

When the moon moves between the sun for solar eclipse

When the earth moves between the sun and moon

(Extremely sorry if im wrong)

Explanation:

6 0

3 years ago

25 points!! Will give Brainliest What is the molarity of the dilute solution if you dilute 35.0 mL of a 12.0 M solution to make

olga2289 [7]

Answer:

0.72 good luck with the answer

3 0

3 years ago

Suppose a piece of silver jewelry contains 7.49x10^22 atoms of silver (Ag). how many moles of silver are in the jewelry?

zalisa [80]

Answer:

0.124 mol Ag

General Formulas and Concepts:

Atomic Structure

Moles

Stoichiometry

Using Dimensional Analysis

Explanation:

Step 1: Define

[Given] 7.49 × 10²² atoms Ag

[Solve] mol Ag

Step 2: Identify Conversions

Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Step 3: Convert

[DA] Set up: $\displaystyle 7.49 \cdot 10^{22} \ atoms \ Ag(\frac{1 \ mol \ Ag}{6.022 \cdot 10^{23} \ atoms \ Ag})$
[DA] Divide [Cancel out units]: $\displaystyle 0.124377 \ mol \ Ag$

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

0.124377 mol Ag ≈ 0.124 mol Ag

Topic: AP Chemistry

8 0

3 years ago

At 450 mm Hg a gas has a volume of 760 L, what is its volume at standard pressure

KatRina [158]

Answer:

450.0 L.

Explanation:

We can use the general law of ideal gas: PV = nRT.

where, P is the pressure of the gas in atm.

V is the volume of the gas in L.

n is the no. of moles of the gas in mol.

R is the general gas constant,

T is the temperature of the gas in K.

If n and T are constant, and have different values of P and V:

(P₁V₁) = (P₂V₂).

V₁ = 760.0 L, P₁ = 450.0 mm Hg,

V₂ = ??? L, P₂ = 760.0 mm Hg (standard pressure = 1.0 atm = 760 mm Hg).

∴ V₂ = (P₁V₁)/(P₂) = (760.0 L)(450.0 mm Hg)/(760.0 mm Hg) = 450.0 L.

5 0

4 years ago

Calculate the number of atoms of each 4(NH4)2S

vaieri [72.5K]

4- N
8- H
2-S
Or in 4 nitrogens, 8 hydrogens, and 2 silicons

3 0

3 years ago