GIVING BRAINLIEST I NEED ANSWER IN LESS THAN 5 mins!

Is this a scientific model? Use complete sentences to explain why or why not.

Answer:

Mass of proton neutron and electron

Protons, neutrons, and electrons: Both protons and neutrons have a mass of 1 amu and are found in the nucleus. However, protons have a charge of +1, and neutrons are uncharged. Electrons have a mass of approximately 0 amu, orbit the nucleus, and have a charge of -1.

Explanation:

Hope this helps :)

Answer:

a)  Fe₂S₃(s) + 6H⁺(aq) ---> 6HBr(g) + Fe³⁺

b) Net ionic equation: Cu²⁺(aq) + CO₃²⁻(aq) ---> CuCO₃(s)

c) No reaction

d) Net ionic equation: Bi(OH)₃(s) + 3H⁺(aq) ---> Bi³⁺(aq) + 3H₂O

Explanation:

a) This is a double displacement reaction between solid iron(iii) sulphide and hydrobromic acid to produce hydrogen sulphide gas. The full and net equations of the reaction are given below:

Fe₂S₃(s) + 6HBr(aq) ---> 2FeBr₃ + 3H₂S(g)

Net ionic equation:  Fe₂S₃(s) + 6H⁺(aq) ---> 6HBr(g) + Fe³⁺

b) This is a double displacement reaction between potassium carbonate and copper (ii) nitrate to produce insoluble copper (ii) carbonate. The full and net equations of the reaction are given below:

K₂CO₃(aq) + Cu(NO₃)₂(aq) ---> KNO₃(aq) + CuCO₃(s)

Net ionic equation: Cu²⁺(aq) + CO₃²⁻(aq) ---> CuCO₃(s)

c) No reaction as no precipitate is formed

d) This is a neutralization reaction between bismuth (iii) hydroxide and trioxonitrate (v) acid to produce sat and water. The full and net equations of the reaction are given below:

Bi(OH)₃(s) + 3HNO₃(aq) ---> Bi(NO₃)₃(aq) + 3H₂O(l)

Net ionic equation: Bi(OH)₃(s) + 3H⁺(aq) ---> Bi³⁺(aq) + 3H₂O

Answer:

A. how cholesterol works in the body.

Explanation:

If we know the precise structure of a molecule (by X-ray crystallography), we can understand more about how it interacts with cells, proteins, and other molecules. It can also tell us what reactions it might take part in.

Therefore, we can learn more about how it works in the body and what activities it takes part in in the cells of the body.

Answer:

A

Explanation:

nuityyy

Awnser: The awnser would be (D) Thomas

Explanation:

Use Quizlet

Answer:

Speed: The rate at which someone or something is able to move or operate. Motion: The action or process of moving or being moved.

Explanation:

I pretty much explained it in the answer, have a good one!

Pls Sub to my channel: it's at YT, /channel/, then UCHgDIEsCCSJlYN3Kg2LOgow?

Answer:

80.07 g/mol

Explanation:

Step 1: Define

Molar Mass S - 32.07 g/mol

Molar Mass O - 16.00 g/mol

Step 2: Find molar mass of compound

S = S × 1 = 32.07 g/mol

O₃ = O × 3 = 48.00 g/mol

32.07 + 48.00 = 80.07 g/mol

Answer:

80.06 grams

Explanation:

Edmentum!!

Answer:

2.920

Explanation:

This question tests your knowledge of approximation. If we look at the place values after the decimal point, we have, .915. This corresponds to hundredth, tenth and unit.

Since we have 9.15, in rounding it to the nearest tenth, we have to round it up to .920.

Hence, the weight of the flour to the nearest tenth is 2.920.

Answer:

mountain ranges form when pieces of Earth's crust—called plates—smash against each other in a process called plate tectonics, and buckle up like the hood of a car in a head-on collision.

Hope that answers your question.

Answer: the electric charge is the atomic number

0.04350179862

Explanation:

Make sure to check for sig figs though. Basically, you have 2.54 mL and you multiply that by the 0.789 g/mL and mL cancels out and you are left with 2.00406g. There are 46.06844 grams per mol of ethanol, so to cancel out grams we multiply by 1/46.06844. And then we are left with 0.04350179862 mol

Answer:

yaaaaa babdbabaaaa lolll

Explanation:

Answer:

  50.  54,915 J

  51.  27.0 g

Explanation:

The dimensional analysis tells you how to compute these. Multiplying specific heat, J/(g·°C), by the product of mass and temperature change will give you energy.

__

50.  (375 g)((70 -45) °C)(4.184 J/(g·°C)) = 54,915 J

__

51. M((50 -25)°C)(4.184 J/(g·°C)) = 2825 J

  M = 2825/104.6 g ≈ 27.0 g

Explanation:

Hi sis

Please mark me brainliest and thank me and rate me.

Answer:

The correct answer is 0.22 mol Te.

Explanation:

First, we have to calculate the mass of Te in the sample. We simply multiply the sample mass by the percentage of Te (28.53%= 28.53/100)

100.00 g x 28.53/100 = 28.53 g Te

The molar mass of Te is 127.60 g. Thus, the mass of 1 mol of Te is 127.60 g. With this, we calculate how many moles of Te there are in 28.53 g of Te:

28.53 g Te x 1 mol Te/127.60 g Te= 0.223 mol ≅ 0.22 mol

Answer:

C. 64

Explanation:

Given:

The number of equally likely sample outcomes of a single stage = 4

Unknown:

Total number of elements if there are three stages= ?

Solution;

Probability is the likelihood of an event to occur.

  In this problem;

      For a single stage, the likely outcome is 4

So therefore;

   For the 3 stages 4 x 4 x 4 = 64

Therefore, the total number of elements in the sample space of an experiment with 3 stages is 64

Answer:

zygote

Explanation:

In human beings, each gamete contains 23 chromosomes, half the number found in the other cells of the body. When the male and female gametes fuse, they become a zygote containing the full 46 chromosomes, half of which came from the father and half from the mother.

Answer:

zygote

Explanation:

In human beings, each gamete contains 23 chromosomes, half the number found in the other cells of the body. When the male and female gametes fuse, they become a zygote containing the full 46 chromosomes, half of which came from the father and half from the mother.

Answer:it do not states

Explanation:

Answer:

The process of turning water into gas is called evaporation. When water is heated, it changes state from a liquid to a solid. No mass is destroyed during the process, but rather, it is converted into gas.

Explanation:

Brainliest Plzzz!!!

Answer:

25°C + 273.15 = 298.15K , so D.) is the Answer

Explanation:

Answer : The image C shows homogeneous mixture and image A, B and D shows heterogeneous mixture.

Explanation :

Heterogeneous mixtures : It is a mixture in which the constituent substances are not mixed well and do not have a uniform composition throughout the mixture that means appears non-uniformly throughout the solution.

Homogeneous mixtures : It is a mixture in which the constituent substances are mixed well and have a uniform composition throughout the mixture that means appears uniformly throughout the solution.

From the given image we conclude that the,

image C shows homogeneous mixture and image A, B and D shows heterogeneous mixture.

Answer:

2

Explanation:

because it same volume

Answer:

sulfur

Explanation:

Answer:

Electron domains in the valence shell of an atom will arrange themselves so as to minimize repulsions

Explanation:

In accordance with VSEPR theory, the electron domains or electron pairs on the valence shell of the central atom in a molecule always position themselves as far apart in space as possible in order to minimize repulsions.

Recall that according to VSEPR theory, the shape of a molecule depends on the number of electron pairs or electron domains on the valence shell of the central atom of the molecule, both lone pairs and bond pairs. Lone pairs are known to cause more repulsions than bond pairs.

Answer:

biology

Explanation:

biology is the study of living g things

Answer:

The answer you would be looking for is Biology

Answer: it has one proton and electron

Explanation:

Explanation:

its light waves cannot travel through vaccum

hope it helps

Answer:

Transverse waves do not require a medium to travel.

Explanation:

Answer:

nitrogen 18

nitrogen has an atomic number of 7

Answer:

where are the options?

Explanation: