Chemistry High School

The effect on temperature on The rate of the reaction between marble chips hydraulic acid can be investigated by measuring The production of carbon dioxide


is it a b c or d

The Effect On Temperature On The Rate Of The Reaction Between Marble Chips Hydraulic Acid Can Be Investigated

Answers

Answer 1

Answer:

D. Thermometer

Explanation:

The equipment used to measure the temperature of any reaction is the thermometer.

A thermometer is any device that has been specifically calibrated to measure the temperature values of reaction.

Temperature is the degree of hotness or coldness of a body. Cold bodies have very low temperature. Hot bodies have high temperatures. There are different types of thermometers in use for various purposes.

Related Questions

Which describes the composition of carbohydrates?

Answers

Answer: Carbohydrates (carbo- = “carbon”; hydrate = “water”) contain the elements carbon, hydrogen, and oxygen, and only those elements with a few exceptions. The ratio of carbon to hydrogen to oxygen in carbohydrate molecules is 1:2:1.

HOPE THIS HELPS

CAN U GIVE ME BRAINLIEST

Which element is a metalloid?
Si
Ne
Br2
Cl2

Answers

Answer:

There are 2 answers.  A and C

Explanation:

Si is Silicon, which is a metalloid,

Br2 is Bromine, which is a metalloid

Calculate the percentage by mass in each element
N in NH3

Answers

Answer:

82.35%.

Explanation:

Mass of 1 molecule of ammonia

NH₃ = 14+3(1)

= 17

Calculating percentage by mass of N.

[tex]\%=\dfrac{\text{Mass of Nitrogen atom}}{\text{Mass of ammonia molecule}}\times 100[/tex]

[tex]\%=\dfrac{14}{17}\times 100\\\\=82.35\%[/tex]

So, the required percentage is 82.35%.

8.
Which of the following is NOT a desirable property for a material that is to be made ir
window?
A) hard
B) waterproof
C) opaque to light
D) rigid

Answers

The correct answer is b hope this helps air

Which choice names part of the lithosphere?



-inner core



-outer core



-all of the mantle



-crust and outer part of the mantle

pls i give a brainest

Answers

The lithosphere is the solid, outer part is the earth it includes the brittle upper portion of the mantle and the crust and the outermost layers of Earths structures

Balance Nuclear Reaction
94239Pu --> 24He + ________

Answers

34488 because its the only way you can balance the nuclear reaction

what is the answer pls help me

Answers

Answer:fist one 2 and 3 next

Explanation:

i looked it up

What are quantum numbers?

Answers

Answer:

a number which occurs in the theoretical expression for the value of some quantized property of a subatomic particle, atom, or molecule and can only have certain integral or half-integral values.

Explanation:

In other words, it is a number that is Part of scientific theories or chemistry

How many grams of aluminum oxide are produced according to the reaction below given that you start with 13.2 grams of Al and 13.2 grams of O2?
Reaction: 4AI + 3 02 → 2A1203

Answers

Answer: 24.87g Al2O3

Explanation: Aluminum is our limiting reagent

[tex]13.2g Al * \frac{1 mol Al}{26.98 g} * \frac{2 mol Al2O3}{4 mol Al} = 0.244 mol Al2O3[/tex]

First of all we need to convert the grams of aluminium to moles, then use the molar fraction of the balanced equation (4 moles of aluminium equals 2 of aluminum oxide).

If we made the same procedure with the oxigen we get a 0.273 mol of Al2O3, therefore the O2 is the excess reagent.

The last step is convert the moles of the limiting reagent to grams

[tex]0.244 mol Al_{2} O_{3} * \frac{101.96g}{1mol Al2O3} = 24.87g Al2O3[/tex]

And that´s it!

Which of the following are considered physical changes?
[mark all correct answers]
a. Boiling water
b. Crushing a can
c. Burning wood
d. Rusting nail
e. Shredding paper

Answers

A, B, and D

Physical changes don’t change the chemical structure... rusting and burning would change the substance

Oxygen Molecules taken in per breath: The Athletes result will be?

Answers

Answer:

Explanation:

the answer is higher because there is more exercise that makes it higher

hope this helps


How many unpaired electrons are present in V3+?​

Answers

Answer: two unpaired

Explanation: In general, electrons are removed from the valence-shell s-orbitals before they are removed from valence d-orbitals when transition metals are ionized. And thus, V3+ is paramagnetic, because it has two unpaired 3d-electrons.

How much iron is present in 1.3400 grams of iron (III) oxide?

Answers

Answer:

69.94%

Explanation:

69.94% IRON IS PRESENT

Pls help (there is a pic)

Answers

The answer is the 3rd one

calculate the percentage by mass of oxygen in ammonium nitrate

Answers

Answer:

Percent composition of O is 48g80g×100%=60%

According to the rate law for the reaction, an increase in the concentration of hydronium ion has what effect on this reaction?

Answers

Answer:

The rate of reaction increases.

Explanation:

higher concentration --> more collisions --> rate increases

Question: Based on this information, which type of light is more likely to damage the material?

1)The gamma ray light is more likely to damage the material because the gamma ray light can
pull energy out of the material when it passes through the material.
b
2)The X-ray light is more likely to damage the material because the X-ray light bounces off of
the material, which means that it has more energy.

3)There is no way to know because they are two different types of light, and different types of
light can change a material in different ways.

4)Neither type of light is likely to damage the material because the material does not take in
energy from either the X-ray light or the gamma ray light.
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< Back
6
Save and Continue
lol

Answers

Answer: It will be D which is number 4........

Neither type of light is likely to damage the material, because the material does not take in energy from either the X-ray light or the gamma ray light.

Explanation:

2. Using what you know of particle motion in solids, liquids, and gases, explain why you think temperature changes affect a substance's
state of matter. Use the terms particle motion, temperature, solid, liquid, and gas in your answer.

Answers

Explanation:

Temperature changes have significant impact on the physical states of matter and it drives most physical changes and even the chemical alteration occurring to substances.

When the temperature of substance increases, the particle's average kinetic energy increases. The average kinetic energy of the particles is the component heat resident within a body. As this energy increases, for solids, their particles in fixed lattices breaks free and begins move. Further increase in the temperature will cause a motion which leads to flowing of the particles on top of one another. This eventually culminates in bond breaking and hence gases forms. When heat is removed, the reverse process is what is ensues.

Need help on this please help

Answers

Answer:

The answer is: The Earth rotates on its axis.

how many formula units are in 0.96 moles of H2O

Answers

Answer:

18.02 amu

Explanation:

Which measurement shows the correct degree of precision for this ruler?
a. 1.5 cm
b. 1 cm
c. 1.55 cm

Answers

You didn’t put a ruler up

Answer:

1.5 cm

Explanation-

I took it ...

5. How many mol are in 2.5x10 23
atoms of copper?
a. 0.42 mol Cu (yellow)
b.4.2 mol Cu (pink)
c. I.8 mol Cu (blue)

Answers

a 0.42 mol Cu yellow

What is the molality of a solution that has 6 mol of CaCl2 in 3 kg of water?
A. 2 m
B. 0.5 m
C. 6 m
D. 3 m

Answers

Answer:

2m

Explanation:

Hope this helps :)

Answer:

Answer is B.

Explanation:

3mol/6kg = 0.5m

Use the drop-down menus to complete the statements.


A segment of DNA is called a
.

A complex of nucleic acids and proteins that make up chromosomes is called
.

A structure in the nucleus of an eukaryotic cell that is made up of condensed DNA is called a
.

Answers

A segment of DNA is called a  gene.

A complex of nucleic acids and proteins that make up chromosomes is called  Chromatin

A structure in the nucleus of an eukaryotic cell that is made up of condensed DNA is called a  chromosome.

Answer:

1. Gene

2. Chromatin

3. chromosome

Explanation:

I hope this helps you :)

a student wants to determine if different types of car wheels impact how far a car will travel after leaving a ramp. The same car and the same ramp or used for each trial run. The data collected are shown in the table.
A. Large plastic Wheels

B. Large rubber Wheels

C. Small rubber Wheels

D. Small plastic Wheels ​

Answers

I would pick small wheels to allow the car to go the fastest because it has the highest average distance by 72!

Answer:

b. it has the longest average distance

2 Students were asked to identify the location of elements in the periodic table based on clues
printed on game cards.
Element 1
• Shiny black solid
• Metalloid
• 3 valence electrons
• 2 energy levels
Element III
• Colorless gas
• Nonmetal
• 8 valence electrons
• 5 energy levels
Element II
• Steel-gray solid
• Brittle metalloid
• 5 valence electrons
• 4 energy levels
Element IV
• Silvery-white solid
• Soft metal
• 2 valence electrons
• 6 energy levels
Based on the data, which periodic table shows the correct location of the four elements?

Answers

Answer:

B

Explanation:

I took the test

Element 1 is silicon. An element's atoms all contain the same amount of protons, but its electron and neutron counts might vary.

What is element?

A material that cannot be destroyed chemically is referred to as a chemical element. Although chemical processes cannot modify an atom, nuclear reactions can create new elements.

The quantity of protons an element has defines it. An element's atoms all contain the same amount of protons, but its electron and neutron counts might vary. Ions are produced by altering the electron to proton ratio, whereas isotopes are produced by altering the neutron count.

118 known elements are present. A study is being done to create element 120.1. The periodic table will have to be modified to include element 120 after it has been created and validated. Element 1 is silicon.

Therefore, the element 1 is silicon.

To know more about element, here:

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Four oranges were placed in a series circuit. Approximately what voltage did this produce?

Answers

Answer:

Four times the original amount if only one orange was used

Explanation:

We can assume that the oranges all have equal voltages. Connecting them in series will have an increasing effect on the voltage delivered. In our case, this will produce 4 times the voltage of the circuit when only one orange is used.

Whenever simple cells are connected in series, the voltages of the individual cells are added up to form the voltage of the whole circuit.

Let us assume that the voltage of each of the oranges is approximately 0.9 volts. The Voltage produced when the 4 oranges are joined in series is 0.9 + 0.9 + 0.9 + 0.9 = 3.6 volts

10 pointsss Where are tsunamis likely to originate?

Answers

tsunamis are likely to originate in the pacific ocean

Answer:

Pacific Ocean

Explanation:

Does N2F2 obey the octet rule? Explain.

Answers

It indeed does because 5(2) +7(2) =24


What is the heliosheath?

Answers

Answer:

The heliosphere is the vast, bubble-like region of space that surrounds and is created by the Sun.

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