Study island help pleaseeee

Study Island Help Pleaseeee

Answers

Answer 1

Answer:

A or D should be the answer

Answer 2
The most reactive element is the element closest to the right of the Periodic Table. In other words, the further to the right of the periodic table you go, the more reactive it will be. So your answer is B, Fluorine.

Hope this helps :)

Related Questions

When a cell duplicates itself and splits into 2 cells it is called mitosis.
Which statement about the cells is correct?
ANSWER CHOICES

A Group of answer choices

B There is no genetic information in the new cells.

C None of these answers are correct.

D The cells are demonstrating cell theory; cells come from pre-existing cells.

E The cells will be damaged and die

Answers

Answer:

The answer is D

The answer is D I think

Which describes any substance that shatters or breaks easily?

malleable
brittle
volatile
ductile

Answers

Answer:

Brittle

Explanation:

Its the most easy thing to break.

The substance that breaks easily or shatters is brittle. As malleable and ductile are hard in nature and volatiles are types of solute. Thus, option B is correct.

 What are brittle substances?

These substances are hard and rigid but contain little tensile strength that is they can be broken down into pieces easily on applying a little amount of pressure.

They have little deformation and poor capacity for conduction of current with high compressive strength and low tensile strength.

On applying pressure they fracture with little elastic deformation and some examples of it are some alloys with low plasticity, glass, and graphite. Their breaking is also known as brittle breakage.

Ductile are stiff and unable to break and the volatiles are type of solute easily dissolve in water malleable and are unbreakable or difficult to break. These all are the bad conductor of electricity.

Therefore, brittle is the substance among these which breaks. Thus, option B is correct.

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what would cause water to turn from a gas to a liquid

Answers

Answer:

When you heat something up, it makes the molecules move faster. ... When this happens, all of the molecules go flying apart and become a gas (like when you boil water to make steam). The process of gas molecules leaving the liquid to go into the gas is called "evaporation." The opposite process is called "condensation.

XxAnimexX

What is the movement of one plate below another
called?

Answers

Answer:

Subduction is a geological process that takes place at convergent boundaries of tectonic plates where one plate moves under another and is forced to sink due to high gravitational potential energy into the mantle. Regions where this process occurs are known as subduction zones.

Explanation:

Hope this helps :D

Answer:

subduction

Explanation:

hope this helps

1. How many miles are in 1,000,000 centimeters?

Answers

Answer:

6 miles.

Explanation:

There is a lot of decimal points after it. But you just need to convert everything. But if you round it to the nearest whole, it would be 6 miles.

Answer:

Ex1,000,000 Centimeters =

6.2137119 Miles

planation:

A sample in lab displaces 15 mL of water in a graduated cylinder. When placed on a scale the mass is 8.7 g. What is the density of the sample.

Answers

Explanation:

Density: mass/volume

8.7/15= 0.58 grams per milliliter

This answer can't be accurate because the question doesnt state the initial volume of water and the mass of the graduated cylinder itself

Which of the following is NOT a source of dissolved oxygen in the water?
A. humans going underwater and exhaling
B. diffusion from the atmosphere
C. aeration as water moves over rocks and debris, and from wind and waves
D. photosynthesis of aquatic plants

Answers

Answer:

A. humans going underwater and exhaling

Explanation:

Dissolved oxygen is the oxygen content that can be found in a water body. Oxygen is a gaseous component that dissolves readily in water, however, oxygen dissolves in water via the following sources including diffusion from the atmosphere, aeration as water moves over rocks and debris, and from wind and wave, photosynthesis of aquatic plants.

Humans like every other living organism will undergo cellular respiration and release CO2 (carbon dioxide gas) as a a product during exhalation. Hence, humans going underwater and exhaling cannot be a source of dissolved oxygen.

1395 +3.4
What is the answer

Answers

Answer:

1398.4

Explanation:

Use a calculator

Honestly didnt even need to

According to Dalton’s atomic theory, atoms:
A.are destroyed in chemical reactions.

B.can be divided.

C.of each element are identical in size, mass, and other properties.

D.of different elements cannot combine

Answers

Answer:

C

Explanation:

Dalton's atomic theory are: Everything is composed of atoms, which are the indivisible building blocks of matter and cannot be destroyed. All atoms of an element are identical. The atoms of different elements vary in size and mass.

Dalton's atomic theory opines that atoms of the same element are identical in size, mass, and other properties and are different from atoms of other elements.

In addition, Dalton theorized that atoms can neither be created nor destroyed, and they are the smallest indivisible particle of elements.

He also proposed that atoms of different elements are also able to combine in whole number ratio to form compounds.

More on Dalton's atomic theory can be found here: https://brainly.com/question/13157325?referrer=searchResults

2. The three sub-atomic particles that make up the atom are

Answers

Answer:

Protons

Neutrons

Electrons

Explanation:

if the (H+) is 2.1×10^-12 MHCIO4, What is the PH? is the solution ACIDIC, BASIC or NEUTRAL.​

Answers

Explanation:

The pH of a substance can be found by using the formula

[tex]pH = - log[ H^{ + } ][/tex]

where [ H+ ] is the hydrogen ion concentration in the substance

From the question

[ H+ ] = 2.1 × 10-¹² M

To find the pH substitute the value into the above formula

We have

[tex]pH = - log(2.1 \times {10}^{ - 12} ) \\ = 11.6777807 \: \: \: \: \: \: [/tex]

We have the answer as

pH = 11.7

The solution is basic since it lies in the basic region that is from 8 to 14

Hope this helps you

You are inviting 32 friends, you estimate that each friead will eat 2.5 slices of pizza, on average, each pizza contains 8 slices, and there is a deal where you can buy 2 pizzas for $15

Answers

Answer:

$75

Explanation:

32(2.5) = 80 slices

80 slices / 8 slices = 10 pizzas

10/2 = 5 two pizza deals

5 x 15 = $75

A single measurement system that scientists all over the world have agreed on adopted in 1960 by the General Conference on Weights and Measures; has seven base units, and most other units are derived from these seven?

Answers

Answer:le système international d’unite(SI)

Explanation:

Identify whether each element is a halogen, a noble gas, or nonmetal only.

Astatine (At):
Nitrogen (N):
Krypton (Kr):
Chlorine (Cl):
Sulfur (S):

Answers

Answer:

(At)halogen

(N)nonmetal only

(Kr)Nobel gas

(CI)halogen

(S)nonmetal only

Explanation:

Answer:

(At): Halogen

(N): Nonmetal only

(Kr): Noble Gas

(Cl): Halogen

(S): Nonmetal only

Explanation:

Took the test on edge!

Sorry if its wrong but it shouldnt be.

Please give brainliest <3

3. Why do you think it is important that an erosion control blanket
break down after a few weeks or months?

Answers

Answer:

The primary purpose of erosion control blankets is to keep soil from shifting or moving. They help stabilize soil particles and sediments, holding them in place to prevent sliding due to water, wind or other natural causes.

Explanation:

0.000786 written in scientific notation is?​

Answers

7.86 x 10^ -4.

This is because you move the decimal place back 4 places making it negative

Laboratory equipment is cleaned and properly stored after use primarily so that
chemical products can be measured and recorded as data
time is saved in setting up the next experiment
toxic materials can be kept in the laboratory
the possibility of contamination in the laboratory is minimized

Answers

Answer:

The last option is the correct option

Explanation:

Laboratory equipment and work benches are cleaned (and stored properly in the case of equipment) after use so as to keep them free of the purpose it has been used for, which if not done, could lead to various undesirable events/aftermath. For example, if dyes or grease is used in a process in the laboratory, these compounds need to be washed off the glasswares (like measuring cylinder) it was poured in during the course of the experiment to prevent the glassware from retaining some of it's residual particles hence contaminating the glassware for future laboratory use. Cleaning must be done on the surfaces the experiment was carried out also for the same reason.

Hence, the correct option is the possibility of contamination in the laboratory is minimized.

Can an element be a compound? Explain?

Answers

Answer:

Yes

Explanation:

A compound is a pure substance composed of two or more different atoms chemically bonded to one another. A compound can be destroyed by chemical means. It might be broken down into simpler compounds, into its elements or a combination of the two.

Which of the following would be one of the interacting parts in a weather system?

Answers

CLOUDS would be one of the interacting parts in a weather system.

Which element is in Group 17 and has more than 50 protons but less than 75 protons?

Answers

Answer:

Iodine

Explanation:

Iodine is in group 17 on the periodic table (first picture attached). The second picture shows you in the top left-hand corner of Iodine's little square, there is the number 53. This is the atomic number, it is also the number of protons and electrons in an element.

Hope this helped :)

how many kilograms are in a 50 pound luggage bag?

Answers

There are 23kg in a 50 luggage. Hope I helped☺️
Well... 1 pound is 0.454 kilograms so if you multiple 0.454 by 50 you will get a total of 22.68 kilograms

Is the air that we breathe an element, compound, mixture, or pure substance?
Element
Pure substance
O Mixture
Compound

Answers

The answer is mixture

Do it and I will give brainliest

Answers

Answer:

Hi there!

Your answer is

Mass: 12

&

Electrons:5

Explanation:

The electrons in a neutral atom is the same as the # of Protons!

the density of mercury is 13.6 g/cm3 what is the mass of 8.20 ml of mercury

Answers

Answer:

The answer is

111.52 g

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question

density of mercury = 13.6 g/cm³

First we must convert the volume from mL to cm³

if 1 mL = 1 cm³

Then 8.20 mL = 8.20 cm³

volume = 8.20 cm³

The mass of mercury is

mass = 13.6 × 8.2

We have the final answer as

111.52 g

Hope this helps you

Match the scientist with their scientific idea. Question 2 options: Gases are formed from tiny particles so small you can’t see them. The particles are spread out into a certain area and move when people walk through them. Matter was made of different kinds of things. Substances combine or break apart to create new, different substances. 1. Democritus 2. Bernoulli 3. Priestley

Answers

Answer:

gases is 2

particles are 3

and the 3rd question is 1

Explanation:

Bernoulli's principle states that gas is a tiny particle that is not visible to the eyes, but particles move when displaced by some factors. Thus, the correct matches are a. 2, b. 3, and c. 1.

What is Bernoulli's principle?

Bernoulli's principle states the kinetic molecular theory of gases. According to the theory, gas particles are small and are far away from each other. But they move from their position due to the fluid dynamics when objects pass through them. Hence, option a. 2 is correct.

Democritus stated about the matter is made of various constituents particles. He is known as the "Father of science" as gave the idea of matter comprising atoms. Hence, option c. 1 is correct.

Joseph Priestley proposed about the new substance formed by breaking or creating the bonds between the reactants. According to him, gases are made of particles that can be a mixture. Hence, option b. 3 is correct.

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What are intermolecular forces? ​

Answers

Intermolecular forces are the forces of attraction or repulsion which act between neighboring particles (atoms, molecules, or ions ). These forces are weak compared to the intramolecular forces, such as the covalent or ionic bonds between atoms in a molecule.

3. SE7.12D The cell organelle responsible for providing energy for cell processes in plant
and animal cells is the -

Answers

It is the mitochondria. Mitochondria are the power house of the cell and provide the cell with energy. Both plant and animal cells have mitochondria.

Can someone help me please!! Apex
What does the mass number represent?
A. The average charge of all ions of the element
B. The sum of the masses of all the isotopes
C. The sum of the atomic numbers of all the isotopes
D. The average mass of all isotopes of the element

Answers

D) The average mass of all isotopes of the element

Answer:

It is D

Explanation:

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Derek didn't use all the HCl that he poured out for an
experiment. He decides to store the rest in an aluminum
can. What do you tell him.
ut of
question
Select one:
a. Nothing. Aluminum is a safe non-reactive metal for
storage of acids.
b. Hydrochloric acid is flammable in the presence of
aluminum.
c. The reaction of the acid and the aluminum can will
turn the can ice cold.
d. The acid is likely to eat through the can.

Answers

Answer:

d. The acid is likely to eat through the can.

Explanation:

Aluminium is a metallic element found in group 3 of the periodic table. Aluminum is a very reactive metal owing to the fact that it reacts with almost every substance it comes in contact with e.g air, acids, bases etc.

In this question where Derek stores his Hydrochloric acid (HCl) remnant, after an experiment, into a can made of aluminum. What will happen is that the acid is likely going to eat through the can. This might occur gradually but will eventually. Aluminum protects itself from further reactions by forming a layer of Aluminum oxide (Al2O3) when it reacts with air.

This is what keeps the reaction with HCl gradual but the acid will eventually permeate the layer and corrode the aluminum can by reacting with the aluminum.

What is the density of a block of wood that has a mass of 125grams and volume of 25.6mL?

Answers

Since density is = to mass/volume, you would do this:
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