Chemistry High School

Extra points please someone help

Answers

Answer 1

Answer: Plants and animals share many characteristics, but they are different in some respects hope that helps-

Explanation:

Related Questions

what does this graph represent?
A. speed
B. velocity
C. acceleration
D. momentum?

Answers

I think that it might represent Velocity

What is the molar mass of Pb(ClO )4 ?

Answers

Answer:

605.0024

The molar mass and molecular weight of Pb(ClO4)4 is 605.0024.

Explanation:

sooo the answer is-

Which of these layers is found directly above the Earth's core?

Group of answer choices

Outer core

Mantle

Inner core

Crust

Answers

Answer: Mantle

Explanation:

there are 3 layers of the earth- core, mantle and crust. The layer found directly above the earth's core is the mantle.

Answer:

The answer depends on what you are taking about: the outer core or the inner core?

Answer: Mantle

Explanation:

If you find a picture of the Earth's layers, you can see that the inner core is the bottommost layer. However, if you combine the Inner Core and Outer Core, that could be determined as the Earth's core.

I would chose the Mantle because if the two cores are combined, the layer directly above them is the Mantle.

Is it true or false?

Answers

Answer:

false

Explanation:

because i know it

Thermal energy would naturally flow between objects at which temperatures?
O A. from 5°C to -5°C
OB. from 15°C to 15°C
OC. from 35°C to 45°C
OD. from -15°C to 15°C

Answers

Answer:

i think the answer is letter C. From 35°c to 45°c

Explanation:

sorry if it is wrong

Which of the following best explains how an organism's phenotypic traits increase the chances for a species to survive?

A.
An organism’s phenotype may influence its ability to find food, and also might affect the organism’s ability to reproduce and pass on favorable alleles.

B.
An organism’s phenotype may influence its ability to produce chromosomes and pass those chromosomes to future generations

C.
An organism’s phenotype may influence its ability to turn on certiain genes necessary for survival.

D.
An organism’s phenotype is not connected with the chances for a species to survive.

Answers

Answer:

An organism’s phenotype may influence its ability to find food, and also might affect the organism’s ability to reproduce and pass on favorable alleles.

An organism’s phenotype may influence its ability to produce chromosomes and pass those chromosomes to future generations

An organism’s phenotype may influence its ability to turn on certiain genes necessary for survival.

An organism’s phenotype is not connected with the chances for a species to survive.

Explanation:

A

Phenotype is the physical appearance of an organism as distinguished from its genetic makeup. The phenotype of an organism depends on which genes are dominant and on the interaction between genes and environment.

HELP ME PLEASE I NEED THE ANDEER NOW

Answers

the answer is 0.430 .

SOMEONE SMART HELP PLS!!

Answers

Sample b is the answer omg .

Can somebody give me some backup for this question?

Answers

Yeah the answer is 3.

Match the items to use the analogy of time to the vocabulary of chemistry.

Answers

Answer:

1 year- 1 mole

time in general- amount of matter

1 second- 1 atom/ particle

Answer:

1 Year => 1 Mole

Time in General => Amount of Matter

1 Second => 1 Atom/Particle

Explanation:

These pairs make the most sense.

Hope it helps!!!

553.5 mL ?:cm^3
how do i get my answer? and what is the answer?

Answers

Answer:

553.5 cm3

Reason:

1 mL = 1 cm3

what are the products of the reaction with their coefficients C2H18+O2?

Answers

Answer:

2C2H18 + 13O2 → 4CO2 + 18H2O (I balanced your equation)

Products - CO2 & H20

Which of the following best describes the difference between a mixture and a pure substance? A. A mixture has different properties throughout; a pure substance has the same properties throughout. B. A mixture is made up of more than one type of atom; a pure substance is made up of only one type of atom. C. A mixture is made up of only one type of atom; a pure substance is made up of more than one type of atom. D. A mixture has the same properties throughout; a pure substance has the different properties throughout.

Answers

Answer:d

Explanation:

Answer:

A mixture has different properties throughout; a pure substance has the same properties throughout.

Explanation:

Matching

Match each definition with the correct term.

Definitions

_____ 1. device for measuring temperature

_____ 2. total kinetic energy of particles of matter

_____ 3. amount of energy needed to raise the temperature of 1 gram of a substance by 1 °C

_____ 4. average kinetic energy of particles of matter

_____ 5. scale for measuring temperature

From the CK-12 Physical Science For Middle School Workbook

_____ 6. transfer of thermal energy between objects with different temperatures

_____ 7. measure that affects the thermal energy of matter but not its temperature

Terms

thermal energy
heat
temperature
thermometer
mass
Celsius
specific heat

Answers

Answer:

1. thermometer

2. thermal energy

3. specific heat

4. temperature

5. Celsius

6. heat

7. mass

1. A student predicted the reaction between hydrogen and oxygen gas would yield 125
mL of water. However, after measuring the water formed in the reaction, the
student determined that only 110mL of water was actually formed. What is the
percent yield of this reaction?

Answers

Answer:

88%

Explanation:

percent yield is the actual yield divided by the theoretical (predicted) yield, then multiplied by 100 to get a percentage.

110/125 = 0.88

0.88 x 100 = 88%

Complete the Replication and Transcription of the following DNA Sequence:
GGAGTTACAGTTAGTA
Replication (DNA to DNA):
Transcription (DNA to RNA):

Answers

Answer:

CCUCAAUGUCAAUCAU or you could try CCTCAACGTCAATCAT i could be wrong so sorry im not the best

Answer:

Replicated DNA: CCT-CAA-TGT-CAA-TCA-T

Transcription sequence (mRNA): CCU-CAA-UGU-CAA-UCA-U

Explanation:

How many atoms are there in 0.655 moles of C6H14?

Answers

Answer: 3.94 x 10^23 molecules

Explanation: hope this helps!

How many moles are in 45.5 g of P2O5 ?

Answers

Answer:

0.327214 mol

Explanation:

45.5/278.106=0.163607

Then, 0.163607x2= 0.327214

Calculate the net force on the object below.

98 N up

10 N down

10 N up

0 N

Answers

Answer:

first we add the same direction. 12N + 32 N=44N .

then we add the forces. 54 up + 44N down= 10N up

how many grams will be produced??

Answers

Explanation:

b is correct. 30.6 g H2O is produced.

The Kₐ of carbonic acid is 4.3 x10⁻⁷ . H₂CO₃ ⇄ H⁺ + HCO₃ ⁻ This means that H₂CO₃ is a
A) Good hydrogen-ion acceptor.
B) Poor hydrogen-ion acceptor.
C) Good hydrogen-ion donor.
D) Poor hydrogen-ion donor.

Answers

Answer:

A good hydrogen ion acceptor

Any idea for science project acccept digestive system

Answers

you could draw a person, label the organs, you can show pictures of the organs, you could make a cake.

Answer the question, please.

Answers

Answer:nope nope

Explanation:just no

How do scientists know a reaction in dynamic equilibrium hasn't just stopped?

Answers

Answer:

any reaction will be in dynamic equilibrium if it's reversible and the rates of the forward and reverse reactions are equal.

Explanation:

say that you prepare a solution that is saturated with an aqueous solution of NaCl

Which statement accurately describes liquids?

Answers

Answer:

what are the statments?

Explanation:

How can you tell if atoms of two different elements will form polar covalent or nonpolar covalent bonds??

Answers

The difference in electronegativity between two atoms determines how a polar a bond will be. In a diatomic molecule with two identical atoms, there’s not difference in electronegativity, so the bond is nonpolar or pure covalent.

1. Convert 1.5 moles to molecules 2. Convert 1.204x10^24 molecules to moles 3. Convert 1.5x10^20 molecules to moles 4.Convert 0.35 moles to molecules 5. Convert 15 moles H2O to atoms 6.Convert 0.75 moles CaSO4 to atoms

Answers

Answer:

Explanation:

1.5 moles to molecules

1 mole = 6.02 x 10²³ molecules

1.5 moles = 6.02 x 1.5 x 10²³ molecules

= 9.03 x 10²³ molecules

2 )

Convert 1.204x10²⁴ molecules to moles

6.02 x 10²³ molecules = 1 mole

1.204x10²⁴ molecules = 1.204x10²⁴ / 6.02 x 10²³ moles

= 2 moles

3 ) Convert 1.5x10^20 molecules to moles

6.02 x 10²³ molecules = 1 mole

1.5x10²⁰ molecules = 1.5x10²⁰ / 6.02 x 10²³ moles

= .25 x 10⁻³ moles

= 2.5 x 10⁻⁴ moles .

4 )

Convert 0.35 moles to molecules

1 moles = 6.02 x 10²³ molecules

.35 mole = 6.02 x .35 x 10²³ molecules

= 2.1 x 10²³ molecules.

5 )

Convert 15 moles H₂O to atoms

1 moles = 6.02 x 10²³ molecules

15 moles = 15 x 6.02 x 10²³ molecules

= 90.3 x 10²³ molecules of water

1 molecule of water has 3 atoms in total

90.3 x 10²³ molecules of water = 90.3 x 3 x 10²³ atoms

= 270.9 x 10²³ atoms .

6 )

0.75 moles CaSO₄ to atoms

1 moles = 6.02 x 10²³ molecules

.75 moles = .75 x 6.02 x 10²³ molecules of CaSO₄

= 4.515 x 10²³ molecules of CaSO₄

1 molecule of CaSO₄ = 6 atoms

4.515 x 10²³ molecules of CaSO₄ = 6 x 4.515 x 10²³ atoms

= 27.09 x 10²³ atoms .

A ball shaped like a sphere has a diameter of 12 centimeters. Which measurements is closest to the volume
of the ball in cubic centimeters?

Answers

Hhhhffdddejur jrnfnjf fingjid

someone please ASAP
the options are
1. BF.
2.B4
3.B2F2
3.BF3

Answers

Answer:

Explanation:

good day

8. What is the [H+] of a solution with a pH of 4.78

Answers

Answer:

7.01 is the answer of the [H+] of a solution with a pH of 4.78

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