A pH scale has how many sections on it?

Answers

Answer 1

Answer:

0-14

Explanation:


Related Questions

HElPpp AsAPp I’ll mark you as brainlister!!

Answers

A. There is no extra information

2 points
There is a connection between photosynthesis and cellular respiration.
The products from one provide the raw materials for the other. This image
shows the relationship between the two processes. What products of
photosynthesis are starting material for cellular respiration? *

Answers

Answer:

glucose and oxygen

Explanation:

Glucose and oxygen are needed for cellular respiration to occur:)

Need help on this question asap please

Answers

Answer:

The correct answer is - 14.

Explanation:

In the given molecular formula of the aluminum sulphite which is Al2(SO3)3, this molecular formula there different type of elements are bonded together to form this compound each element has a specific number of atoms present. This compound has three elements that are aluminum, sulfur, and oxygen and the atoms are present are:

Al = 2 atoms represented by subscript

S = 3 atoms represented as whole subscripts of sulfite

O = 9 atoms 3 inside bracket and 3 outside of bracket that multiplies.

Thus, total number of atoms are 2+3+9 = 14

Explain how to count the number of elements in a compound.

Answers

Answer:

Simply identify what elements are in a compound

Explanation:

For example in NaCl we have sodium (Na) and Chlorine (Cl)

In order to do this you would need to recognise the symbols for a certain element: O for oxygen; N for nitrogen; H for hydrogen etc.

pls help, what is this compound called?

Answers

Answer:

Ammonium

Explanation:

ammonium is a compound because it has 2 elements

compound is a material formed by chemically bonding two or more chemical elements.

during the charging process, the allied liquid becomes gas. What happens to particles in the liquid

Answers

Answer: The particles need energy to overcome the attractions between them. As the liquid gets warmer more particles have sufficient energy to escape from the liquid. Eventually even particles in the middle of the liquid form bubbles of gas in the liquid.

Explanation:

A sample of neon gas is at a temperature of 60°C and has a volume of 300 cm. What is the volume of the gas if it is heated to 100°C at a constant pressure?​

Answers

Answer:

336.04 cm

Explanation:

T1 = 60+273 = 333K

T2 = 100+273 = 373K

V2 = (V1×T2)/T1

V2 = 300×373/333

V2 = 336.04 cm

help please
........​

Answers

I am pretty sure it is Vitamin A... but I could be wrong. Sorry if it is wrong.

Identify the ideal gas law equation.

Answers

Answer:

The ideal gas law is the relationship described by the equation" PV = nRT where P is pressure , V is volume , n is the number of moles of an ideal gas , R is the ideal gas constant , and T is the temperature .

HOPE THIS HELPS

HAVE A GOOD DAY

Explanation:

Answer:

PV=nRT

Explanation:

Which is NOT an application of chemistry to life? *

a. Fertilizers used by farmers

b. Soaps used to clean

c. Medicine used by doctors

d. Hammer used by construction worker​

Answers

I’m pretty sure it’s D

Eye Color
Genetic
O Environmental
O Both

Answers

Answer:

the first cause eye color is genetic

What is the mass (in grams) of 3.03 × 1024 molecules of carbon dioxide molecules?

Answers

1 mole of CO2 has 6.02 x 10^23 molecules of CO2. Say x moles of CO2 has 3.0x10^23 molecules of CO2. Therefore x = 3/6.02 = 0.50. M = 0.50 * (12 + 2x16) = 0.50 * 44 = 22g

We have that for the Question "" it can be said that the mass (in grams) of 3.03 × 1024 molecules of carbon dioxide molecules is

Amount of CO_2(g)=221.35g

From the question we are told

What is the mass (in grams) of 3.03 × 1024 molecules of carbon dioxide molecules?

Generally the equation for the   is mathematically given as

[tex]No moles in 3*02*10^{24}=\frac{3.03*10^{24}}{6.023*10^-{23}}[/tex]

No moles in 3*02*10^{24}=5.03moles

Amount of CO_2(g)=5.03moles *44g/mol

Amount of CO_2(g)=221.35g

Hence

the mass (in grams) of 3.03 × 1024 molecules of carbon dioxide molecules is

Amount of CO_2(g)=221.35g

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The phenomenon that allows water to travel against gravity through thin openings (for
example, to the top of trees) is called:

Answers

Answer:

El motor que las permite vencer la gravedad es la evaporación del agua que tiene lugar en las hojas.

Explanation:

There is a very slight change in gravity at the top of a mountain. Which property would most likely be less at the top of a mountain?


mass

weight

body density

body temperature

Answers

Answer:

The entity that decreases is the Weight.

Explanation:

Every object on the surface of the earth is usually pulled downwards by the action of gravity. The force or weight is W = mg

Now, the farther one gets away from the surface of the earth by climbing a mountain, the further the person is from the Earth's centre of gravity.

We know that the formula for Force of gravity away from the Earth's surface is given by;

F_g = GM1M2/r²

So the greater the distance, the lesser the gravitational force.

Now, the gravitational force equals the weight of the individual.

Thus, the entity that decreases is the Weight of the individual.

Which of these is a behavioral adaptation?

Answers

Answer:

a brown bear hibernates and become inactive during winter

As the volume of a fixed mass of a gas increases at constant temperature, the pressure of the gas

A) increases
B) decreases
C) remains the same

Answers

Remain the same not sure about the answer

The initial pressure of a balloon floating in the air is 0.53 atm. After the balloon has reached a certain point in the sky, the volume of the air particles in the balloon is 4.3 liters at a final pressure of 0.42 atm. What was the initial volume of the balloon?

Answers

Answer:

The initial volume of the balloon is 3.41 L.

Explanation:

The gas laws are a set of chemical and physical laws that allow determining the behavior of gases in a closed system. The parameters evaluated in these laws are pressure, volume, temperature, and moles.

As the volume increases, the gas particles (atoms or molecules) take longer to reach the walls of the container and therefore collide with them fewer times per unit of time. This means that the pressure will be lower because it represents the frequency of collisions of the gas against the walls. In this way pressure and volume are related, determining Boyle's law which says:

"The volume occupied by a certain gaseous mass at constant temperature is inversely proportional to pressure"

Boyle's law is expressed mathematically as:

Pressure * Volume = constant

or P * V = k

Now it is possible to assume that you have a certain volume of gas V1 that is at a pressure P1 at the beginning of the experiment. If you vary the volume of gas to a new value V2, then the pressure will change to P2, and it will be fulfilled:

P1 * V1 = P2 * V2

In this case:

P1= 0.53 atmV1= ?P2= 0.42 atmV2= 4.3 L

Replacing:

0.53 atm* V1= 0.42 atm* 4.3 L

Solving:

[tex]V1=\frac{0.42 atm* 4.3 L}{0.53 atm}[/tex]

V1= 3.41 L

The initial volume of the balloon is 3.41 L.

7
Why might living in a high-pollution area have a negative effect on a person's
thyroid?
I

Answers

Answer: since the thyroid produces hormones, the chemicals made by our bodies. Living where there is a lot of pollution would expose a person to many other chemicals -- gas fumes, contaminants in food and water, and so on. I hope this helped!!

If you had 14.5 moles of gold, how many atoms would you expect to have?

Answers

Answer:

(14.5 mol) x (6.022 x 10^23 atoms/mol) = 8.73 × 10^24 atoms

Explanation:

pls mark brainliest



25.2 g of CuSO4 6H20 (mm: 267.72 g/mol) is dissolved in 28.0 mL of water, calculate the molarity.

Answers

Answer:

3.36 M

Explanation:

Step 1: Given data

Mass of CuSO₄.6H₂O (m): 25.2 gMolar mass of CuSO₄.6H₂O (M): 267.72 g/molVolume of solution (V): 28.0 mL (we will assume it is equal to the volume of water)

Step 2: Calculate the moles (n) of CuSO₄.6H₂O (solute)

We will use the following expression.

n = m/M

n = 25.2 g / (267.72 g/mol) = 0.0941 mol

Step 3: Calculate the molarity

Molarity is equal to the moles of solute divided by the liters of solution.

M = 0.0941 mol/0.0280 L = 3.36 M

Mg(OH)2
SO2
(NH4)2SO4
H3PO4
(All the numbers are subscripts!)

Answers

Answer:

I think this is it. and 38 points??

what do you call a solid which dissolves?

Answers

Answer:

solute

Explanation:

for example sugar salt etc

solute dissolve in solvent

Extreme dryness is a characteristic of the____.

grasslands
desert
tropical rainforest

Answers

Answer:

desert

Explanation:

rainforest include a lot of rain, and grasslands have grass. grass includes water and sunlight. which leaves you to desert

PLEASE HELP ME!!!

A 38.8g piece of metal alloy absorbs 181J as its temperature increases from 25.0°C to 36.0°C°. What is the alloy's specific heat? Show your work.

Answers

Answer:

0.424 J/g °C

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Chemistry

Thermochemistry

Specific Heat Formula: q = mcΔT

q is heat (in Joules)m is mass (in grams)c is specific heat (in J/g °C)ΔT is change in temperatureExplanation:

Step 1: Define

[Given] m = 38.8 g

[Given] q = 181 J

[Given] ΔT = 36.0 °C - 25.0 °C = 11.0 °C

[Solve] c

Step 2: Solve for Specific Heat

Substitute in variables [Specific Heat Formula]:                                             181 J = (38.8 g)c(11.0 °C)Multiply:                                                                                                             181 J = (426.8 g °C)c[Division Property of Equality] Isolate c:                                                         0.424086 J/g °C = cRewrite:                                                                                                             c = 0.424086 J/g °C

Step 3: Check

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

0.424086 J/g °C ≈ 0.424 J/g °C

HELPPPPPPP PLEASEEEE

Answers

Answer:

Plant and Animal

Explanation:

The others are not accurate

A bowling ball rests on the floor. The bowling ball is given a push.




Which of the following is the most likely change to happen to the bowling ball?
It will move.

It will gain mass.

It will change colors.

It will change shape.

Answers

Answer:

A. It will move.

Looking at page 14 of the earth science tables, how does the temperature change as a balloon rises through the Troposphere Stratosphere and Mesosphere?

Increase, decreases, increases again

Decreases, increases, decreases again

Increases

Decreases

Answers

Answer:

Decreases

Explanation:

The temperature decreases when latitude increases.

What are the products we get out of this
reaction? (check picture)

Answers

Explanation:

two compounds because element is the very smallest part of any mixture


You are decomposing 2.00 mol of baking soda according to the following equation:
2 NaHCO3 -> Na2CO3 + CO2 + H2O
If you only collected 0.750 mol of Na2CO3 after the reaction finished, what was the
percent yield?
75.0%
62.5%
37.5%
25.0%
Question 6 (1 point)
✓ Saved

Answers

I’m not sure but I’m thinking 75.0% btw if you want an exact answer you need to offer more than 5 points

How could a scientist use a sedimentary rock to provide evidence that the right k cycle is a valid scientific model

Answers

Answer:

By closely observing the sedimentary rock and the presence of organic materials and mineral grains in sedimentary rocks

Explanation:

The rock cycle explains how the three types of rock are formed over time from each other.

To use a sedimentary rock to prove that the rock cycle is a valid scientific model is by, closely observing the sedimentary rock. when the sedimentary rock is closed observed the principle of superposition will be seen ( i.e. younger segments deposited on top ), the presence of organic materials and mineral grains that can be found in Igneous or Metamorphic rocks can also be seen and this shows that Sedimentary rocks pass through the rock cycle. hence this proves that the rock cycle is a valid scientific model overtime  

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