___ ___ ___ ___ ___ P ___ ___ ___ ___ ___ ___ ___ mediums allow light to pass through

Answers

Answer 1

Answer:

I thought the answer was " T R A N S P A R E N T " but I don't know what the extra two letters are! I'm sorry, that's all I've got..


Related Questions

An object has a density of 1.4 g/cm . It is slowly lowered into a graduated cylinder whose water level was 65 mL. When the object is completely submerged the water level rises to 90 mL. What is the mass of the object?​

Answers

Answer:

Explanation:

Weight

A measure of the force of gravity on an object

Mass

The measurement of how much matter an object contains

Volume

The amount of space that matter occupies

Density

The physical property that relates the mass and volume of an object or material

Unlike weight, mass doesn't change with location, even when the force of gravity on an object changes

Why do scientists prefer to describe its matter by its mass rather than its weight?

International System of Units

What system of units do scientists use to measure the properties of matter?

Liter, milliliter, cubic centimeter

3 common units of volume

Volume= length•width•height

Volume formula

Sand and feathers have different densities

Why does a kg of sand take up much less space than a kg of feathers?

Density=mass/volume

Density formula

Objects with densities greater than water will sink and objects with densities less than water will float. The density of wood is less than water (1 g/cm3) and the density of iron is greater than water (1 g/cm3)

If you drop a block of iron and block of wood into water, the iron sinks and the wood floats. What can you conclude about the density of iron and wood compared to the density of water?

V=2,400 cm3

A box has a length of 25 cm, a width of 8 cm, and a height of 12 cm. What is its volume?

D= 13.5 g/cm3

A sample of metal has a mass of 94.5 g and a volume of 7 cm3. What is its density?

Mass= density•volume

Mass formula

M= 234.26 g

Corn oil has a density of 6.89 g/cm3. What is the mass of 34.0 cm3 of corn oil?

Yes. No. The pull of gravity is different on the moon.

A solid has a mass of 180. Would the solid have a mass of 180 g on the moon? Would it have the same weight on Earth as on the moon? Explain.

No, because only the mass and volume will change

Will every solid with the same dimensions have the same density?

Grams and kilograms

Common units for mass

Grams per cubic centimeter or grams per cubic milliliter

Common units for density

V= 20 ml

D= 0.75 g/cm3

George put 25 ml of water into a graduated cylinder. After adding a solid object, the water level in the cylinder rose to 45 ml. What is the volume of the object? The object George is examining has a mass of 15 grams. What is the density of the object?

How many molecules of H2O are in 8.54 moles of H2O?
Select one:
a. 5.14 * 10^24 molecules H2O
b. 2.86 * 10^23 molecules H2O
c. 6.02 * 10^23 molecules H2O
d. 5.14 * 10^23 molecules H2O

Answers

Answer:

[tex]\boxed {\boxed {\sf A. \ About \ 5.14 *10^{24} \ molecules \ H_2O}}[/tex]

Explanation:

To convert from moles to units, we must use Avogadro's Number: 6.022 * 10²³

This tells us the number of units (molecules of water in this problem) in 1 mole of a substance (water). We can use it as a ratio or fraction.

[tex]\frac{6.022 *10^{23} \ molecules \ H_2O}{1 \ mol \ H_2 O}[/tex]

Now, we can multiply this fraction by the moles of water (8.54) given.

[tex]8.54 \ mol \ H_2O*\frac{6.022 *10^{23}\ molecules \ H_2O}{1 \ mol \ H_2 O}[/tex]

When we multiply, the moles of water will cancel out.

[tex]8.54 *\frac{6.022 \ molecules \ H_2O}{1 \ }[/tex]

Since the fraction has a 1 as a denominator, we can remove it. The problem will be a simple multiplication problem.

[tex]8.54*6.022 \ molecules \ H_2O[/tex]

[tex]5.142788*10^{24} \ molecules \ H_2O[/tex]

The original measurement of 8.54 has 3 significant figures (8, 5, and 4). Therefore, we must round our answer to 3 sig figs, which is the hundredth place in this case.

The 2 in the thousandth place tells us to leave the 4 in the hundredth place.

[tex]5.14 *10^{24} \ molecules \ H_2 O[/tex]

There are about 5.14*10²⁴ molecules of water in 8.54 moles.

Answer:

5.14 x 10^24 molecules of H2O.

Explanation:

just took the test

Displacement can be added to get the total
a) velocity
b) distance
c) speed
d) acceleration

Answers

im pretty positive it’s velocity i remember learning about this last year in physics sorry i don’t have an explanation but i’m pretty sure it’s velocity

PLEASE HELP !!
Use the diagram below to answer the following questions.
PLEASE HELP
E TE
Figure B
In Figure B, which region contains the noble gas family of elements?
ОА
OD
ОС
OB

Answers

Noble gas located in the region D

Further explanation

Noble gas are located in group 18 in the periodic table consisting of helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), have a stable electron configuration where the valence electrons are 8(full outer shell of electrons), so it is very hard to react because of its stability

If we look at the periodic system of the elements, the noble gases are on the far right, so that in Figure 8 it is located in area D

And the other region :

A : alkali elements(group 1),

B : alkaline earth elements(group 2)

C : halogen elements(group 17)

Temperature of boiling water cannot be measured by a
_____________ thermometer.

Answers

Answer:

Cannot be measured by pyrometer.

Explanation:

This is because a pyrometer measures temperatures for very hot bodies such as the sun.

Answer:

Clinical

Explanation:

Temperature of boiling water cannot be measured by a Clinical thermometer The reason behind this is that the range of clinical thermometer varies between only 35° C to 42° C.

How many atoms of the element with atomic number 11 are in the reactants of the given formula?

2 NaCl + H2SO4 → 2 HCl + Na2SO4

Answers

The number of Na atoms in the reactants = 2

Further explanation

Every chemical reaction involves compounds that can act as reactants or products

The reactants will react to produce products

The reactants are usually written on the left side of the reaction, while the products on the right side of the reaction

Reaction

2 NaCl + H₂SO₄ → 2 HCl + Na₂SO₄

The element with atomic number 11  = Na(Natrium)

The number of atoms of the element that reacts or is produced can be seen from the reaction coefficient and the number of atoms in the compound

Na in NaCl = 1 atom

From equation, cofficient for NaCl = 2, so number of atoms of Na=2 x 1 = 2

3. Which of the following is an example of a polyatomic ion?
a. NO
b. OP-
C. CI
d. Ca²+​

Answers

Answer:D

Explanation:polyatomic means more then one and it have more then 1 positive ion

Answer: B

Explanation:

A polyatomic ion needs to have two atoms, hence the word “poly,” so D and C are NOT correct. An ion also needs to be charged, so that makes B the correct answer.

Genetics is the study of

Answers

Genetics is a term that refers to the study of genes and their roles in inheritance

Which of the following reactants will generate products with a solution of phosphoric acid?
a
Al(s)
b
Cu(s)
c
Au(s)
d
Ag(s)

Answers

Answer:

A. Al(s)

Explanation:

EXPLAIN What is one way that the thermal energy of a system can be changed?

Answers

Answer:

When the temperature of an object increases, 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.

Explanation:

BTW I GOT THE ANSWER FROM KRISTINA

The thermal energy of a system is the amount of heat energy in it.

One way to change thermal energy is by alter the system by introducing a new object to the system.

The thermal energy of a system is calculated using:

[tex]E = \frac 12 mc\theta[/tex]

Assume the mass of the system remains unchanged.

When an object is introduced to the system, the thermal energy becomes:

[tex]E_2 = \frac 12 mc(\theta + \alpha)[/tex]

Where:

[tex]\alpha \ne 0[/tex] --- the temperature of the object.

Expand:

[tex]E_2 = \frac 12 mc(\theta) + \frac 12 mc (\alpha)[/tex]

Substitute: [tex]E = \frac 12 mc\theta[/tex]

[tex]E_2 = E + \frac 12 mc (\alpha)[/tex]

This means that the thermal energy of the system will change by the thermal energy of the object that is being introduced to the system.

Hence, one way the thermal energy can be changed is to introduce a new object (or matter).

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What caused space technology to improve so quickly?


Answers

Answer:

“spinoff”

Explanation:

Here is just a sampling of the many “spinoff” technologies, as NASA refers to them, resulting from space research and development that we now use in everyday life.

14. HCOOH is an example of
A. alcohols.
B. aldehydes.
C. carboxylic acids.
D. ethers.
E. ketones.​

Answers

Answer:

carboxylic acid is the answer

Explanation:

Plz mark brainliest

what is ideal gas constant?? g0ogle doesnt got any good answerss

Answers

Answer:

An ideal gas is a gas with particular characteristics.

Explanation:

The particles have no volume All collisions between particles are elastic collisions and lose no kinetic energy The particles neither attract each other nor repel They have random movement

Ideal gases are hypothetical which means that they do not exist in their true form.

hope this helps, pls mark brainliest :D

As shown by the periodic table, why do the elements potassium and sodium have similar chemical properties?

Answers

Hey mate
This is the answer

The elements potassium and sodium have similar chemical properties because they have the same number of valence electrons and form +1 ions.

Plsssssss mark me as brainliest

separation methods for coconut oil and water​

Answers

Answer:

[tex]\huge\mathtt{{\colorbox{silver}{ANSWER~~~↴}}}[/tex]

we use a separating funnel to separate oil from water , we are using funnel because both water and oil both are immiscible liquids.

the process of separation of oil from water is called filtration ✔️

no copied answer :)

▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃

what's the molar mass of Li3p

Answers

Answer:

51.79g Li₃P.

Explanation:

Li has a molar mass of 6.94 g (since there are 3, you multiply it 3 times) and P has a molar mass of 30.97 g. 6.94(3) + 30.97 = 51.79g.

If the ball is at rest on the soccer field and the four forces shown are applied at the same time, the ball will
А.
move to the left.
B. stay in the same position.
c. accelerate in the direction of the smallest force.
D. resist any change in movement.

Answers

C I think maybe I aM right or 1

Since the rightward force is greater than the leftward force by a magnitude of 10 Newton, the ball will: A. move to the left.

Given the following data:

Upward force = 50 Newton.Downward force = 50 Newton.Rightward force = 30 Newton.Leftward force = 40 Newton.

A net force can be defined as the vector sum of all the forces acting on an object.

Hence, net force is the sum of all forces acting simultaneously on an object.

To determine the direction in which the ball would move if the four forces shown are applied at the same time:

For the downward and upward force:

[tex]Net\;force = 50-50\\\\Net\;force = 0\;Newton[/tex]

For the rightward and leftward force:

[tex]Net\;force = 40-30\\\\Net\;force = 10\;Newton[/tex]

Since the rightward force is greater than the leftward force by a magnitude of 10 Newton, the ball will move to the left.

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An element in group 3 that is a good conductor of electricity.

Answers

Answer:

Well for me I think

Explanation:

it's Aliminium

Answer:

Aluminum is good in heat and conductor

Please help me!!!!!!!it is about elements on the periodic table. Please help!!!!!

Answers

Answer:

a\c enables the protons so therefore we duplicate the neutrons making for the first one 80 squared then subtracted by 201 and then do that for all

Use the drop-down menus after each statement to identify the dry climate region being described.
v climates feature hot summers and cold winters, dividing the climate into sharply contrasting
seasons.
v climates are characterized by very little rainfall, hot summers, and mild winters.
v climates have annual precipitation between 15 and 25 inches.
Semiarid climate regions have areas of grasslands, called
steppes.

Answers

Answer:

✔ semiarid

✔ desert

✔ semiarid

✔ steppes

.

Explanation:

The deserts and steppes comprise the regions that are characterized by dry climates. The dry climates are characterized by very little rainfall, hot summers, and mild winters. The correct option is B.

What is a dry climate?

The areas which are very dry and where the water escapes and leaves the area drier than other places is known as the dry climate. Most dry climates have summers very hot, winters cool and warm and the air is very dry.

The main characteristic feature of the dry climate is the low and infrequent rainfall. Arid and semi desert areas have only about 35 cm rainfall per year.

Thus the correct option is B.

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Please help me choose the correct statement

Answers

The ball has more mass because it weights more it may be less dense but more weight is being added to it

The units of a formula mass are
a. amu
b. micrograms
c. moles
d. grams

Answers

Answer:

the units of a formula mass are amu.

In this reaction, how does the rate of forward reaction vary with the concentration of the product?

2H2S(g) ⇌ 2H2(g) + S2(g)

It increases with an increase in the concentration of S2(g).
It decreases with a decrease in the concentration of H2(g).
It increases with a decrease in the concentration of H2(g).
It decreases with an increase in the concentration of S2(g).
It decreases with increase in the concentration of H2(g).

Answers

Answer:

c d e

Explanation:

Answer:

C D E

Explanation:

#platogang

HELP IN 8TH GRADE ADV SCIENCE

Answers

Answer:

protons: 36

neutrons: 48

electrons: 36

What is the name given to the group 0 elements

Answers

Answer:

the noble gases

1. Suppose that there were two isotopes of Sodium.
28% of the naturally occurring sodium atoms had a
mass of 22, and 72% atoms had a mass of 23. What
would the average atomic weight of sodium be?

Answers

Answer: C. The university surveys 600 randomly selected students who attend the university. Correct

Explanation:

22.72 is the average atomic weight of sodium.

What are isotopes?

Isotopes are different versions of a specific element.

1st isotopes of 22u = 28%

2nd isotopes of 23u = 72%

The average atomic weight of sodium be=

22 x 28 + 23 x72

=2272/100

=22.72

Hence, 22.72 is the average atomic weight of sodium.

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Which substance is correctly identified as a homogeneous or heterogeneous mixture?

A. salad -- heterogeneous
B. milk --- heterogeneous
C. river water --- homogeneous
D. beach sand --- homogeneous

Answers

Answer:

A

Explanation:

A salad with lettuce, cheese, seeds, tomatoes, broccoli, and other vegetables is an example of a heterogeneous mixture.

Milk is not mixed with anything so that is incorrect

River water is mixed in with dirt and minerals so this one is incorrect

Beach sand is incorrect because you can see colored particles.

I WILL DIE I HAVE A KNIFE IN MY HAND. ANSWER WITH EXPLANATION. If the sound is high pitched, then the wave's frequency would have a:


A.high frequency, short wavelength


B. high frequency, long wavelength


C. low frequency, long wavelength


D. low frequency, short wavelength

Answers

Answer:

A

Explanation:

High frequency, short wavelength

The nervous system involves actions that control

Answers

Answer:

The peripheral nervous system can be further divided into the autonomic system, which regulates involuntary actions, and the somatic system, which controls voluntary actions.

Explanation:

mark as brainly plz and thanks

Answer: voluntary actions.

Explanation:The peripheral nervous system can be further divided into the autonomic system, which regulates involuntary actions, and the somatic system, which controls voluntary actions.

how many bonds can sodium form

Answers

it exists as atom or ion but not as sodium molecule. So there is no any sodium sodium bonding between two sodium atoms. Sodium combines with other element or group to form compounds of sodium like sodium chloride ,sodium carbonate ,sodium sulphate etc. Sodium has symbol Na and its atomic no. is 11 .

Answer:

[tex]\boxed{One\: Ionic\: Bond}[/tex]

Explanation:

For example, sodium, which is a metal, and chloride, a nonmetal, form an ionic bond to make NaCl.

Hope it helps!<3

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