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3 years ago

What causes a sharp increase in potential energy when two

2 answers:

5 0

Answer:

C. Electrostatic repulsion between nuclei

Explanation:

Quizlet is a good source to use if Brainly doesn’t provide the answer for you. Anyways, I hope this helps!

Pachacha [2.7K]3 years ago

4 0

The answer is c electrostatic repulsion between nuclei

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How can one establish whether a liquid sample extracted from a plant is pure

Assoli18 [71]

The most accurate means of determining the purity of a substance is through the use of analytical methods. These methods, widely used in different industries, mostly involve chemical analysis, which can pinpoint the presence, identity and amount of impurities in the sample. The most simple chemical methods include gravimetry and titration. There are also the more advanced light-based or spectroscopic methods, such as UV-VIS spectroscopy, nuclear magnetic resonance and infrared spectroscopy. Chromatographic methods, such as gas chromatography and liquid chromatography, can also be used. Other methods used in testing the purity include mass spectroscopy, capillary electrophoresis, optical rotation and particle size analysis.

-basically nerdy talk for using machines controlling chemicals or other atoms to pinpoint any impurities

6 0

2 years ago

I don't know how to transcribe the following DNA sequecne too rna

Llana [10]

Answer:

There is only one change when transcribing from a DNA sequence to a RNA sequence.

Explanation:

The change when transcribing is that instead of thymine (T) in a DNA sequence, you have Uracil (U) in a RNA sequence. The rest will stay the same. So, DNA has ATCG, whereas RNA has UACG. There should be NO thymine (T) in your RNA sequence–– it should only include the four of the following: UACG.

[FORMAT]: DNA is to RNA

A is to U (IMPORTANT, NO "T") –– Think as Apples Under the Tree

T is to A –– Think as Trees have Apples

C is to G –– Think as Car in the Garage

G is to C –– Think as Inside the Garage are Cars

3 0

3 years ago

In the balanced reaction and using the mole ratio:

NikAS [45]

12 moles are needed because stoichiometry is 1:2

4 0

4 years ago

Name four products of incomplete combustion Which 4? 1. 2. 3. 4.

Marysya12 [62]

Answer:

Hey I'm here to help!!

Explanation:

Carbon monoxide
Water
Carbon
Burning coal

Have a great day!

4 0

3 years ago

A student is measuring the mass of a two metal cylinders. The following data is collected. The actual mass of each cylinder is g

Lapatulllka [165]

Answer:

Absolute error in measurement of A = 0.3

Absolute error in measurement of B = 0.3

Explanation:

Absolute error is a measure of the amount of error in a measurement i.e. a measure of how far away a measurement is from a true value or an indication of the uncertainty in a measurement.

The Absolute Error is the difference between the actual and measured value. In formula, the absolute error, Δx is given as:

Δx = |xi – x|,

Where: xi is the measurement, x is the true value,

| | indicates that only absolute values are taken

In the measurements by the student in the question:

Metal Cylinder A

measured value = 12.4 grams

actual mass of metal cylinder A = 12.7 g

Using the absolute error formula; Δx = |xi – x|

Absolute error in measurement of A = |12.4 - 12.7| = 0.3

Metal Cylinder B

measured value = 75.4 grams

actual mass of metal cylinder B = 75.1 g

Using the absolute error formula; Δx = |xi – x|

Absolute error in measurement of B = |75.4 - 75.1| = 0.3

6 0

3 years ago