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weqwewe [10]
3 years ago
9

Which scientist's experiments proved the existence of the nucleus? Niels Bohr's J.J. Thomson's Robert Millikan's Ernest Rutherfo

rd's
Chemistry
1 answer:
bezimeni [28]3 years ago
5 0

Answer: Ernest Rutherford.

Explanation:

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A red blood cell is placed into each of the following solutions. Indicate whether crenation, hemolysis, or neither will occur.
krok68 [10]

Answer:

Following are the responses to the given choices:

Explanation:

  • The RBC crenation is implied through NaCl by 2,67 percent(m/v) because that solution becomes hypertonic to RBC because of the water within the RBC that passes externally towards the outskirts. RBC thus shrinks.
  • 1.13% (m/v), because the low concentration or osmotic that all this solution shows is hypotonic regarding RBC because of the water which has reached the resulting swelling in RBC.
  • Distilled H2 implies hemolytic distillation.
  • Glucose is indicated by crenation at 8.69 percent (m/v).
  • 5.0% (m/v) glucose and 0.9% (m/v) (Crenation is indicated by NaCl.v)
3 0
2 years ago
Which term describes the materials magma is made of?
Elis [28]

Answer:

I believe the answer is Molten

Explanation:

I did that quiz and got 100% :)

7 0
3 years ago
Read 2 more answers
How many sodium ions are in 4543.3 g of NaCl?
Stella [2.4K]

Answer:

4.68x10²⁵ ions of Na⁺

Explanation:

First of all, we dissociate the salt:

NaCl(aq) → Na⁺(aq) + Cl⁻(aq)

An aqueous solution of NaCl dissociates in chlorides anions and sodium cations. Ratio is 1:1, per 1 mol of NaCl, we have 1 mol of Na⁺

We determine the moles of salt: 4543.3 g . 1mol / 58.45 g = 77.7 moles

77.7 moles are the amount of NaCl, therefore we have 77.7 moles of Na⁺.

We count the ions:

1 mol fo Na⁺ has 6.02x10²³ ions

77.7 moles of Na⁺ must have (77.7 . 6.02x10²³) / 1 = 4.68x10²⁵ ions of Na⁺

3 0
2 years ago
Read 2 more answers
At standard temperature and pressure. 0.500 mole of xenon gas occupies
ANEK [815]

Answer:

0.500 mole of Xe (g) occupies 11.2 L at STP.

General Formulas and Concepts:

<u>Gas Laws</u>

  • STP (Standard Conditions for Temperature and Pressure) = 22.4 L per mole at 1 atm, 273 K

<u>Stoichiometry</u>

  • Mole ratio
  • Dimensional Analysis

Explanation:

<u>Step 1: Define</u>

<em>Identify.</em>

0.500 mole Xe (g)

<u>Step 2: Convert</u>

  1. [DA] Set up:                                                                                                  \displaystyle 0.500 \ \text{mole Xe} \bigg( \frac{22.4 \ \text{L Xe}}{1 \ \text{mole Xe}} \bigg)
  2. [DA] Evaluate:                                                                                               \displaystyle 0.500 \ \text{mole Xe} \bigg( \frac{22.4 \ \text{L Xe}}{1 \ \text{mole Xe}} \bigg) = 11.2 \ \text{L Xe}

Topic: AP Chemistry

Unit: Stoichiometry

3 0
2 years ago
What is "change" when we are talking about natural and physical systems?
zlopas [31]

D: is the anwser that your looking for

4 0
2 years ago
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