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Orlov [11]
3 years ago
13

What are glacial erratics made/composed of? How did they form?

Chemistry
1 answer:
const2013 [10]3 years ago
3 0
Glacial erratic are formed  ice erosion resulting from the movement of ice.  Glacial erratic are composed of ice.
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Plz i need help please help​
igomit [66]

Answer:

Metal

Explanation:

Metal is able to be shaped or stretched into wires without breaking

It is a good conductor because it has mobile electron and are solid in room temperature

Hope it helped :))

6 0
3 years ago
Read 2 more answers
Liquid bromine is added to sodium iodide crystals
gulaghasi [49]

The following chemical reaction will occur:

Br₂ (l) + 2 NaI (s) → 2 NaBr (s) + I₂ (s)

Explanation:

Because the bromide (Br₂) have a higher reactivity than iodide (I₂) it is able the remove the iodide from its salts. So the bromide will react with sodium iodine (NaI) to produce sodium bromide (NaBr) and iodine.

The chemical reaction is:

Br₂ (l) + 2 NaI (s) → 2 NaBr (s) + I₂ (s)

where:

(l) - liquid

(s) - solid

Learn more about:

balancing chemical equations

brainly.com/question/13971935

#learnwithBrainly

6 0
3 years ago
Clear
maks197457 [2]

Zirconium - 96 isotope is formed from the beta decay of zirconium-97 , Option C is the correct answer .

<h3>What are Isotopes ?</h3>

Atoms are composed of a cloud of electrons surrounding a dense nucleus that is 100,000 times smaller and comprised of protons and neutrons.

The number of protons(i.e., atomic number, "Z") determines the element.

Isotopes are atoms of the same element that have the same number of protons (i.e., atomic number, "Z") but a different number of neutrons, meaning that their mass number, "A", varies.

Naturally occurring zirconium (⁴⁰Zr) is composed of four stable isotopes

One very long-lived radio isotope (⁹⁶Zr), a primordial nuclide that decays via double beta decay with an observed half-life of 2.0×10¹⁹ years

The second most stable radioisotope is ⁹³Zr, which has a half-life of 1.53 million years.

Thirty other radioisotopes have been observed.

All have half-lives less than a day except for ⁹⁵Zr (64.02 days), ⁸⁸Zr (83.4 days), and ⁸⁹Zr (78.41 hours).

The primary decay mode is electron capture for isotopes lighter than ⁹²Zr

and the primary mode for heavier isotopes is beta decay.

Therefore Zirconium - 96 isotope is formed from the beta decay of zirconium-97 , Option C is the correct answer .

To know more about Isotope

brainly.com/question/11680817

#SPJ1

3 0
2 years ago
If 28 mL of 6.2 M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid?
Naddika [18.5K]

Answer:

The answer is 30 g of sodium hydrocarbonate

Explanation:

This is a acid-base reaction, so in order to neutralise the spilled acid, the mol of spilled acid should be calculated.

M = n / V => n = M x V = 0.028 x 6.2 = 0.1736 mol

Since 1 mol of sulfuric acid generates 2 mol of H⁺, so the mole of H⁺ is 0.3472 mol or 0.35 mol with two significant figures.

To neutralized the acid, we need at least the same mole of base, so we need at least 0.35 mol of NaHCO₃, which can be converted to its mass at 29.4 g.

Since the answer need to be expressed in two significant figures and also need to make sure to neutralize all the acid, so we will use a little excess base. The answer is 30 g.

5 0
3 years ago
How much NaCl would you dissolve and dilute to the 100.00 mL mark in a volumetric flask with DI H2O to prepare a 0.825 M sodium
adoni [48]

Answer:

4.82 g

Explanation:

To solve this problem we'll use the <em>definition of molarity</em>:

  • Molarity = moles / liters

We are given the volume and concentration (keep in mind that 100mL=0.100L):

  • 0.825 M = moles / 0.100 L

Now we <u>calculate the number of NaCl moles required</u>:

  • moles = 0.0825 mol

Then we convert 0.0825 NaCl moles into grams, using its molar mass:

  • 0.0825 mol * 58.44 g/mol = 4.82 g
4 0
3 years ago
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