Chemistry High School

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Approximately how many grams of KBr will dissolve in 100g of water at 50C?


60g

70g

80g

90g

Pleaseeeeeeeeeeeeeeeeeeeeeeee HelpppppppppppApproximately How Many Grams Of KBr Will Dissolve In 100g

Answers

Answer 1

Answer:

the answer would be to your problem here is 90g

Explanation:

Related Questions

Someone help please!

Answers

Answer:

D

Explanation:

What’s Neon family number? And period?

Answers

Answer:

18 and Period 2

Explanation:

Neon (Ne), chemical element, inert gas of Group 18

Neons period on the periodic table is period 2.

3
Question 6 (2 points)
An increase in the level of carbon dioxide in the atmosphere would result in:

Answers

Answer:

Air pollution

Explanation:

Carbon(IV)oxide is sometimes harmful to man but good for plant in other to manufacture their food

Between the two elements Neon (Ne) and Silicon (Si) which is more stable explain your reasoning?

Answers

Answer:

Neon is a gas and silicon is a solid i solved this for my chemistry teacher dr Thomas project this week

Explanation:

gasses are naturally less stable then non metalloids

please help i will mark brainlist

Answers

Answer:

V= 21 cubic cm (( I am not sure about density ))

Explanation:

V= L×W×H

What does c represent in the carbon cycle diagram?

Answers

Answer:

carbon

Explanation:

I'm pretty sure if not

Answer:

The adjacent diagram shows the carbon cycle with the mass of carbon, in gigatons of carbon (Gt C), in each sink and for each process, if known. The amount of carbon being exchanged in each process determines whether the specific sink is growing or shrinking.


Why does heating an object increases its thermal energy?

Answers

Answer:

the average kinetic energy of its particles increases. When the average kinetic energy of its particles increases, the object's thermal energy increases. Therefore, the thermal energy of an object increases as its temperature increases.

All objects contain internal energy. Some of this is due to the movement of the particles in the object. When an object is heated, its particles move more vigorously and its internal energy increases.

If you roll a bowling ball and a marble at the same
speed, which one has more Kinetic Energy?

Answers

Answer:

The marble

Explanation:

Even though they both have kinetic energy, the marble has more since the weight of the bowling ball is heavier, leaving it to stop faster than the marble itself.

If you find yourself rushing to complete many different tasks at once, it may be useful to
a Work at home to get each task done as soon as possible
b. Recruit another co-worker to do your normal tasks
C. Clarify the deadlines for each of the tasks with your boss
d. Stop working on the tasks until someone asks about them

Answers

Answer:

its c

Explanation:

because i have the most wrinkly brain

If you find yourself rushing to complete many different tasks at once, it may be useful to clarify the deadlines for each of the tasks with your boss.

What do you do when you have many tasks at once?

It is common in an office setting to be assigned many tasks to be completed within a short time frame. However, all these tasks must be prioritized in order.

Hence, If you find yourself rushing to complete many different tasks at once, it may be useful to clarify the deadlines for each of the tasks with your boss.

Learn more about work deadlines:https://brainly.com/question/5956140

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How many moles are there in 17.6g NaOH?

Answers

Answer:

The answer is 39.99711. We assume you are converting between grams NaOH and mole. You can view more details on each measurement unit: molecular weight of NaOH or mol This compound is also known as Sodium Hydroxide.

Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, 0.44moles are there in 17.6g NaOH.

What is mole?

The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number. The stoichiometry represents the number of moles.

Mathematically,

number of moles of NaOH =given mass of NaOH÷ molar mass of NaOH

Molar mass of 1 mole of NaOH= 40 g/mol

mass of NaOH=  17.6g

Substituting all the given values in the above equation, we get

number of moles of NaOH = 17.6g ÷  40 g/mol

number of moles of NaOH  =0.44moles

Therefore, 0.44moles are there in 17.6g NaOH.

To know more about mole, here:

https://brainly.com/question/15209553

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How is the Periodic Table helpful to scientists?

Answers

Answer:

Because it helps predict the types of chemical reactions that a particular element is likely to participate in by telling each element's atomic number and usually its atomic weight

Explanation:

the table is useful for modern students and scientists because it helps predict the types of chemical reactions that a particular element is likely to participate in. ... The table tells each element's atomic number and usually its atomic weight. The typical charge of an element is indicated by its group.

march 10
march 3
february 16
february 22

Answers

your answer will be March 3

March 3rd for sure!
Good luck

What causes warm air to rise?
a. The fact that it's less dense than cold air.
b. The fact that it weighs more than cold air.
c. The fact that it has higher pressure than cold air.
d. The fact that it's more dense than cold air.

Answers

a. The fact that it's less dense than cold air.
The answer is a because it reverses depending on the temperature

Which of the following has the smallest atomic radius?
a B
b Al
c F
d N
e Ga

Answers

Answer:

c. F

Explanation:

As you go top to bottom down a column of the periodic table, atomic radius increases.

As you go left to right across a period of the periodic table, atomic radius decreases.

Knowing this trend, that means that the smallest atomic radius would be located in the top right of the periodic table. The closest element to that point is fluorine, or answer C.

Most chemical reactions have what

Answers

Answer:

The first one

Explanation:

Hope it helps

Answer:

I think it would be: have starting substances that collide with each other

Explanation:

Two or more reactants interact to create different substances called products.

You probably use the term heat many times a day. As an example, when you cook dinner, you heat your dinner on a hot stove. When you place a piece of cool metal in the sun, it is heated by the sun’s energy. Why is heat the correct term to use in these examples?
A. They show that when objects are touching, they are the same temperature.
B. They show that heat flows from something warmer to something cooler.
C. They indicate that heat is created to raise the temperature of something.
D. They indicate that the kinetic energy of the particles decreases when something is heated.

Answers

Answer:

c

Explanation:

what happens when u mix blood and water​

Answers

Answer:

Blood and water

Explanation:

What is the mass of 7.5 x 10^24 molecules of NaCl?

Answers

Answer:

Molar mass of NaCl = 58.44277 g/mol

This compound is also known as Sodium Chloride.

Convert grams NaCl to moles  or  moles NaCl to grams

Molecular weight calculation:

22.98977 + 35.453

Explanation:

30 points pls i need help
i need the right answer

Answers

Answer:

C

Explanation:

yes,

The answer is C I think

A car accelerates from 20 m/s to 40 m/s in 4 seconds. What is the car’s acceleration?

Answers

Answer:

40 - 20 = 20

20/4 = 5m/s

The difference in velocity divided by the rate = acceleration.

Home can use ____to distribute warm air from a sunroom

Answers

Answer:

Solarpannels? I honestly don't know I'm just trying to be helpful.

What other substance (besides salt) could you sprinkle over ice to affect how fast it melts? Describe how you would test the substance's impact on the melting time of ice. Predict the results of such a test.

Answers

Answer:

See explanation

Explanation:

Salt makes ice to melt faster than it usual. Sugar is another substance that influences the melting time of ice.

If i have a sample of pure ice and another sample of ice treated with sugar. I have to maintain the both initially at 0 degrees temperature and have a stop clock to measure the melting time.

I will ultimately notice that the sample of ice treated with sugar will melt faster than the pure sample of ice due to the presence of an impurity.

23. Which element is most likely to be malleable?
a. Bromine b. Radon c. Nickel d. Carbon

Answers

It’s c.nickel because it’s a transition metal

NEED HELP PLEASE. NOW

What pressure is exerted by 0.75 moles of a gas at 25°C
in a container with a volume of 1.5 L?

Answers

Answer:

1,239,284pa

Explanation:

Assuming it's an ideal gas we use

PV=nRT

P=nRT/V

then we convert our Temperature into Kelvin

T=25+273.15 =298.12K

we convert our volume into M cubed

1.5L =0.0015 cubic meter

P=nRT/V

P= (0.75×298.12×8.314)/0.0015

P = 1,239,284pa

In the ATP cycle, a phosphate group is cut off of

A. ATP to form ADP, absorbing energy.
B. ATP to form ADP, releasing energy.
C. ADP to form ATP, absorbing energy.
D. ADP to form ATP, releasing energy.

Answers

B. ATP to from ATP, Releasing energy

Answer:

B) ATP to form ADP, releasing energy.

True or False: There are five (5) of Newton's Laws of Motion *​

Answers

Answer:

False

there is three

Explanation:

Three laws are combined together which is further known to us as Newton ’s three laws of motion. These three newton’s laws of motion are: Law I – Newton’s first law of motion Law II – Newton’s second law of motion

Hope this helps :)

2. The air pressure inside a submarine is 0.56 atm. What would be the pressure in
mmHg?

Answers

The answer would be 425.599 because 1 ATM is 760 mmHg.

GUYS QUICK HELP!
is a soda pop bottle a invention or an innovation?

Answers

Answer:

Invention

Explanation:

!Hope This Helps!

A soda pop bottle is an invention.

Hello can someone pls help me with this question! (Please explain why)

QUESTION: How is an increase in surface area achieved?


A. increasing the size of the reactant particles


B. decreasing the size of the reactant particles

Answers

Answer:

letter A.

Explanation:

the rate of a chemical reaction can be raised by increasing the surface area of a solid reactant. this is done by cutting the substance into small pieces, or by grinding it into a powder.if the surface area of a reactant is inceased: more particles are exposed to the other reactant.

HOPE IT HELPS(◍•ᴗ•◍)❤

Neon is used in lighting advertising displays.

Which statement can be applied to an atom of neon?

A The atom has the same electron arrangement as Cl– ion.
B The atom has two more electrons than an atom of oxygen.
C The atom has the same number of outer electrons as an atom of helium.
D The atom has the same number of electrons as a Ca2+ ion.

Answers

Answer:

B. The atom has two more electrons than an atom of oxygen.

Explanation:

In Chemistry, electrons can be defined as subatomic particles that are negatively charged and as such has a magnitude of -1.

Valence electrons can be defined as the number of electrons present in the outermost shell of an atom. Valence electrons are used to determine whether an atom or group of elements found in a periodic table can bond with others. Thus, this property is typically used to determine the chemical properties of elements.

Oxygen has a total number of eight (8) electrons while neon has total number of ten (10) electrons. Therefore, an atom of oxygen is able to gain (receive) two (2) more electrons in order to have the same electron arrangements as the noble gas i.e an atom of neon with an atomic number of 10.

This ultimately implies that, an [tex] O^{2-} [/tex] atom contains the same number of electrons as an atom of neon.

Hence, a neon atom has two more electrons than an atom of oxygen.

Additionally, Neon is used in lighting advertising displays.

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