Chemistry High School

Answers please
I will give brainliest

Answers Please I Will Give Brainliest
Answers Please I Will Give Brainliest

Answers

Answer 1

Answer: it is group1 or group 3 on god

Explanation:

Related Questions

Just like the terrestrial inner planets, which are made of rock and metal, the gas planets have solid surfaces covering mantles and cores.
A. True
B. False

Answers

Answer:

B. False

Explanation:

The gas planets are called so because they are composed of gases and solid materials. Therefore, they cannot have solid surfaces covering mantle and core as they cannot exist.

The molar mass of an element is numerically equal to:.

Answers

Answer:

the molar mass of an element is numerically equal to atomic mass in grams-

Why does dry ice scream when pushed onto metal?

Answers

Answer:

i thought you said dry ice cream

Because metals are good conductors they can transfer ambient heat to the surface of the dry ice.

Define pure substance and give an example

Answers

In the more general sense, a pure substance is any homogeneous mixture. That is, it is matter that appears uniform in appearance and composition, no matter how small the sample size. Examples of pure substances include iron, steel, and water. Air is a homogeneous mixture that is often considered to be a pure substance. (got the answer from google hehe)

How do reactants and products participate in a chemical reaction?

A. One reactant and one product react to form a new reactant and a new product.
B. The reactants are compounds that react to form new compounds (the products).
C. The products react with each other to form new compounds (the reactants).
D. A product is broken down in a chemical reaction to form reactants.

Answers

Answer:

B. The reactants are compounds that react to form new compounds (the products).

Explanation:

yessirski what he said is what im doing. Thanks, guys! #BrainlyPremium

how many molecules of nitrogen dioxide are there in 2.00 moles of nitrogen dioxide ? Show steps please!

Answers

Answer:

2 moles of NO₂ contain 12.044 × 10²³ molecules  of NO₂

Explanation:

Given data:

Number of moles of NO₂ = 2.00 mol

Number of molecules of NO₂ = ?

Solution:

It will be solve through Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.  The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ molecules

2.00 mole NO₂  × 6.022 × 10²³ molecules  of NO₂  / 1 mol of NO₂

12.044 × 10²³ molecules  of NO₂

Thus, 2 moles of NO₂  contain 12.044 × 10²³ molecules  of NO₂ .

what is chemicle reaction

Answers

Answer:

a process that involves rearrangement of the molecular or ionic structure of a substance as distinct from a change in physical form or a nuclear reaction

Explanation:

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A metal object has a density of 4 g/ml and is placed in a graduated cylinder
with 400 ml of water. The water rises to 416 ml. What is the mass of the
metal object?
Make sure to include the correct unit for your answer.

Answers

Answer:

Mass of metal = 64 g

Explanation:

Given data:

Density of metal = 4 g/mL

Volume of water = 400 mL

Volume of water + metal = 416 mL

Mass of metal  = ?

Solution:

First of all we will calculate the volume of metal

Volume of metal = (Volume of water + metal) - volume of water

Volume of metal = 416 mL -  400 mL

Volume of metal = 16 mL

Mass of metal:

d = m/v

4 g/mL = m/  16 mL

m = 4 g/mL ×16 mL

m = 64 g

what type of plate boundary would form where there is a mountain range present, known earthquake activity, but no trenches present?


continental-continental convergent boundary


divergent boundary undersea


oceanic-oceanic convergent boundary


oceanic-continental convergent boundary

Answers

Answer:

continental-continental convergent boundary

Explanation:

When two continental plates converge, they smash together and create mountains. The amazing Himalaya Mountains are the result of this type of convergent plate boundary. The Appalachian Mountains resulted from ancient convergence when Pangaea came together.

Answer:

continental-continental convergent boundary

Explanation:

ay tone, if dis molten material pourin from da trade towa is aluminum, den how come dey ain't silva nor like a watery liquid?

Answers

Answer:

can you please type english?Explanation:

HELP ASAPP WILL MARK BRAINLIST
Matter can be measured in many ways for specific purposes. Which measurement depends on the force of gravity and is not a reliable measurement?
A. Mass
B. Weight
C. Volume
D. Temperature

Answers

Answer:

A. Mass

Explanation:

Mass because ,mass is not a reliable measurement unlike the other ones.

Is SO2 a ionic bond?

Answers

Answer:

Explanation:

So ,SO2 molecules are covalent. ... Covalent is two non-metals sharing electrons while Ionic is a metal and a nonmetal where one takes an electron and changes both of the elements charges for example Nitrogen and Oxygen would be covalent while Iron and Oxygen would be Ionic. So ,SO2 molecules are covalent.

what is the percent composition of sulfur in FeSO4​

Answers

Answer:

36.8%

Explanation:

Ferrous sulfate has the composition 36.8% Fe, 21.1% S and 42.1% O.

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PLEASE ANSWER NOW!!!
A train travels 200 miles at an average speed of 50 miles per hour. How long does it take the train to travel this distance?

Answers

Answer:

The answer is 100 m/p/h because you divide the total 200 miles and the 50 speed and you get about 100 m/p/h

Explanation:

How do invertebrates affect the oxygen levels of compost and soil?.

Answers

Invertebrates affect the oxygen levels of compost and soil by reducing it.

How respiration works?

Cellular respiration is the process by which living organisms obtain energy by breaking down food molecules in their cells.

Every living organism undergoes the process of cellular respiration and make use of oxygen molecules in the process.

This means that invertebrates will make use of the oxygen gas present in compost and the soil for respiration, hereby reducing it.

Learn more about respiration at: https://brainly.com/question/480297

Answer: Burrows create spaces for oxygen to flow through the soil.

Explanation:

I just took the test

BALANCE THE EQUATION PLEASE 50 POINTS

Answers

Answer:

2C3H8S +13O2 =6CO2+8H20+2SO3

Answer:

ningwa answered it

Explanation:

get from (4,1) to (2,9) go up 8 and over 2 left (-2) - (4 - 2, 1 + 8), do this again (2 - 2, 9+8) and end up at (0,17) which is the y how do you change 7x+3y=3 into slope intercept form.

19. Which of the following is NOT a function of proteins?
a. provides structural support for cells
b. long term energy storage
c. speeds up reactions
d. movement and transportation

Answers

i think the answer would be C

how many grams of ice can be melted with 15 j of heat

Answers

Answer: A 15-gram ice cube absorbs 5000 j of heat as it melts

Explanation:

car travels 67 miles at a speed of 45 mi/hr. How long did it take?

Answers

Answer:

Speed = Distance/time

Let's take 't' to be the time

45 = 67/t

45t = 67

t = 67/45

t = 1.48

Can someone help me with 14-16 fill in the blank

Answers

14.skeptical
15.inference
16-invention

why stone is not a combustable and insolouble in water​

Answers

Answer:

Stone does not have organic matter in it to burn in presence of air. Hence, it is a non combustible.

Rocks are quite bundled up together. Hence, they are very difficult to get mixed together.

Answer:

because stone is not have any holes to in the heat inside the stone and the water is dont have oxygen thats why the fire is not allowed to water

you need the heat oxygen and fuel to made a fire

Which properties are characteristic of metalloids

Answers

Answer:

Tara is making a scrapbook using 24 photos and 8 newspaper clippings. She wants to put the same number of photos and clippings on each page. What is the greatest number of scrapbook pages Tara can make?

Explanation:

Tara is making a scrapbook using 24 photos and 8 newspaper clippings. She wants to put the same number of photos and clippings on each page. What is the greatest number of scrapbook pages Tara can make?

Answer:

The properties of metals as well as non metals is called metalloids.

1. K + Cl2 —> KCI
Given: 180 g K and 120 g CI2

Answers

Answer:

A.  Cl₂

B.  51.36 g K

C.  245.3 g KCl

Explanation:

Balance the given chemical equation

K  +  Cl₂  ⇒  KCl

2 K  +  Cl₂  ⇒  2 KCl

A. To find the limiting reagent, first convert the mass of each reactant to moles.  The molar masses are 39.10 g/mol for K and 70.91 g/mol for Cl₂.

(180 g)/(39.10 g/mol) = 4.60 mol K

(120 g)/(70.91 g/mol) = 1.69 mol Cl₂

Now, convert moles of each reactant to moles of the product.  You can do this by using the mole ratio in the balanced chemical reaction.  The reactant with the smallest moles of product is the limiting reagent.

(4.60 mol K) × (2 mol KCl/2 mol K) = 4.60 mol KCl

(1.69 mol Cl₂) × (2 mol KCl/1 mol Cl₂) = 3.29 mol KCl

Cl₂ is the limiting reagent.

B.  You need to find out how much excess K you will have.  Since Cl₂ is the limiting reagent, you will only make 3.29 mol of KCl.  Convert this value to moles of K using the mole ratio.

(3.29 mol KCl) × (2 mol K/2 mol KCl) = 3.29 mol K

Now convert moles of K to grams.  The molar mass is 39.10 g/mol.

(3.29 mol K) × (39.10 g/mol) = 128.64 g K

This is how much K will be consumed in the reaction.  Subtract the total amount of K by the amount that will be consumed.

180 - 128.64 = 51.36 g

There will be 51.36 g of excess K.

C.  You know that you will produce 3.29 mol of KCl based on previous calculations.  Convert this to grams.  The molar mass is 74.55 g/mol.

(3.29 mol) × (74.55 g/mol) = 245.3 g KCl

You will produce 245.3 g of KCl.

What is the number of neutrons in silicon-30

Answers

Answer:

16 neutrons

Explanation:

chemical reactions amplify 1.1 pre assessment

Answers

Chemical reactions are the various types of permanent changes which occur in substances and which produce new substances .

What are chemical reactions?

Chemical reactions are changes which occur in the arrangement of atoms in a substance resulting in the formation of new substances.

There are many types of chemical reactions such as:

combination reactionsdisplacement reactionsdecomposition reactionsoxidation reactionsdouble displacement reactions

The various types of chemical reactions that occur contribute to the numerous compounds and substance in existence today.

Learn more about chemical reactions at: https://brainly.com/question/26018275

What feature of Earth helps to stabilize our temperatures by keeping a balance of the right amount of the Sun’s light energy reaching us?

Answers

Answer:

The earth-atmosphere energy balance is achieved as the energy received from the Sun balances the energy lost by the Earth back into space. In this way, the Earth maintains a stable average temperature and therefore a stable climate. ... Shortwave radiation reflected back to space by clouds.

Explanation:

hope this helps have a good day

i made it easier to see the answer

Answer:Greenhouse effect

Explanation:

The greenhouse effect causes the atmosphere to retain heat

When sunlight reaches Earth's surface, it can either be reflected back into space or absorbed by Earth. Once absorbed, the planet releases some of the energy back into the atmosphere as heat (also called infrared radiation).

What is the vertex of the parabola in the graph?
1
19
6
4
2
X
-6
-2
-2
-4

Answers

Answer:

(-3, -4)

Explanation:

The vertex is the point/dot that is in the middle of the graph. Imagine a vertical invisible line splitting the U in half, equal parts.

Which elements can be found in SiCl4?
O sulfur and chlorine
O silicon and chloride
sulfur and chloride
silicon and chlorine

Answers

I think it would be silicon & chlorine

A piece of metal has a mass of 200 g and a volume of 2cm^3. What is its specific gravity?

a) 0.01
b) 2
c) 100
d) 400

Answers

The answer is c) 100
the answer should be c :)

Choose the answer that best describes how Mount Everest and Death Valley differ. Mount Everest is flat, and Death Valley is the highest point on Earth. Mount Everest is the highest point on Earth, and Death Valley is a smaller mountain. Mount Everest is the highest point on Earth, and Death Valley is relatively flat.

Answers

Answer:

Mount Everest is the highest point on Earth, and Death Valley is relatively flat.

Explanation:

Death Valley is a desert valley in Eastern California, in the northern Mojave Desert, bordering the Great Basin Desert. It is one of the hottest places on Earth, along with deserts in the Middle East and the Sahara, Mount Everest is Earth's highest mountain above sea level, located in the Mahalangur Himal sub-range of the Himalayas. The China–Nepal border runs across its summit point.

Answer:

Last one

Explanation:

Other Questions
The scores of the students on a standardized test are normally distributed, with a mean of 500 and a standard deviation of 110. What is the probability that a randomly selected student has a score between 350 and 550? Use the portion of the standard normal table below to help answer the question. Z Probability 0. 00 0. 5000 0. 25 0. 5987 0. 35 0. 6368 0. 45 0. 6736 1. 00 0. 8413 1. 26 0. 8961 1. 35 0. 9115 1. 36 0. 9131 9% 24% 59% 91%. What is the first step needed to solve() -6=IN25X-6= -16?O aSubtract 16 from both sidesObAdd 6 to both sidesDivide both sides by 5O dMultiply both sides by 2 question listed in image Directions: Read the passage, and answer the question that follows. Inevitably, successful action movies have special effects that wow their audiences. A tornado is one type of special effect that can be impressive. In real life, these wind monsters attract many peoples curiosity. The high-speed spinning of tornadoes can cause great destruction. So, it isnt surprising that these destructive forces on the big screen can make or break a movies popularity. It is risky for moviemakers to tackle weather as part of a big-screen project. Nobody does it better than Mother Nature, right?Dorothys Ride to Oz The movie The Wizard of Oz was released in 1939. Most people are familiar with Dorothys journey to the magical land of Oz. The tornado thrilled audiences as it swept Dorothys house out of Kansas and into Munchkinland. The movies technical details were considered quite high-tech for the 1930s. The moviemakers wanted the tornado to look realistic. It took several tries to get the tornado to look right. The original twister was a 35-foot-tall rubber cone. However, the material was too stiff. Adjustments had to be made so that it would appear more natural. The special-effects person tore it down quite a few times. Eventually, he was inspired by windsocks. These simple weather instruments are made of tubes of fabric attached to the top of a pole. When the wind blows, the fabric points in the direction that the wind is blowing. The improved tornado was made of cloth. This new 35-foot wind monster was very flexible. It could move from side to side, bend, and twistjust like the real thing! Now the special effects person needed to figure out how to make the twister move. A steel framework was hung from the stages ceiling. The top of the fabric cone was attached to it. This framework could move across a wide stage. It allowed the tornado to cover large distances. The bottom of the tornado was hidden in a slot on the stage floor. A long pole was inserted through the bottom end of the cloth cone. The pole was used to move the twister from side to side. People at the top of the cone pulled it in one direction, while others are the bottom moved it in the opposite direction. The combined actions made the tornado appear to move back and forth. Other adjustments had to be made to make the tornado appear realistic. To prevent tearing, a thin wire was woven into the bottom of the fabric. Next, powdery brown dust was sprayed into the fabric cone. The dust made the tornado appear less solid. The dust seeped through the fabric to create soft, blurry sides for the tornado. Then, clouds of yellow-black smoke were puffed onto the set from above. The smoke completed the realistic appearance of the tornado. Finally, this twister was ready to take Dorothy away from Kansas!Computer-Generated Tornadoes It has been very difficult for special-effects crews to figure out how to improve upon the tornado in The Wizard of Oz. It is considered to be a special-effects masterpiece. However, modern audiences have become much better at detecting what is real and what is fake in movies. The creators of the film Twister wanted their tornadoes to appear as real as possible, too. They decided to use computer-generated or digitized, tornadoes. To find out what a computer-generated tornado would look like, a test shot was developed. This test twister represented a large, black tornado throwing out dirt and a large tractor tire. It took 10 weeks to create. The director was very happy with the results. It was used for the movies advertisement. Actual filming for Twister began in 1995. Computer crews developed software programs to make the tornadoes realistic. Using computer technology, the behavior of a single object could be changed. For the first time, it was possible to light particles such as dust from different angles. The shading and movement of the twisters in this film were more realistic than anything done before! Animators were able to create realistic digitized tornadoes of various sizes. The size and strength of a real tornado are judged using a Fujita scale, or F-scale. The least destructive tornado is classified as an F1. The most destructive is an F5. Animators created virtual tornadoes F3 and smaller by using solid cones with added layers. The layers shaded part of the tornadoes, making them appear more realistic. Larger tornadoes needed to appear more solid. Therefore, many layers of debris were added. Animators were also able to spin larger tornadoes slowly, just like real tornadoes move. PLEASE HELPPP!!!!!!!!!!!!!!!!!!!!! 0. 01 M HCl solution has a pH of 2. Suppose that during the experiment, both the universal pH indicator and the cabbage indicator turn orange-red for 0. 01 M HCl. What can you conclude about the the cabbage indicator key? It matches the universal pH indicator and is indicating the proper pH. It should completely match the universal indicator key for all pH values greater than 7 (base). It should completely match the universal indicator key for all pH values. There was some sort of experimental error, because the indicators should never match. Complete each sentence with the correct direct and indirect object pronouns, depending on the context. Use two pronouns in your answers.PATRICIO:Mi hermana _____ va a hacer. Pero necesita los ingredientes. A car dealer organizes the inventory of a specific model of car into a frequency table comparing the type of car and the model year. the dealer used the data from the frequency table to create this conditional relative frequency table by column. a 4-column table with 3 rows titled car inventory. the first column has no label with entries current model year, previous model year, total. the second column is labeled coupe with entries 0.9, 0.1, 1.0. the third column is labeled sedan with entries 0.75, 0.25, 1.0. the fourth column is labeled nearly equal 0.79 , nearly equal to 0.21, 1.0. which is the best description of the 0.1 in the table? given that a car is a coupe, there is a 10% chance it is from the previous model year. given that a car is from the previous model year, there is a 10% chance that it is a coupe. there is a 10% chance that the car is from the previous model year. there is a 10% chance that the car is a coupe. How did King Philip handle The Great Swamp Fight? Please evaluate this equation, and explain how you got the answer. As a result of the introduction of the Bessemer process in 1855, which industry most likely grew the mostimmediately thereafter?textilerailroadmeatpackingautomobile 88=CNUse the table to answer the following questions.012345Y1272-3-8-1331 pointThe y-intercept from our table istype your answer... Which group of 3 elements are in the 3d sublevel?Silicon (Si), Phosphorus (P), Chlorine (CI)Vanadium (V). Nickel (Ni), Iron (Fe)Zinc (Zn). Palladium (Pd). Osmium (76)Arsenic (As), Zinc (Zn). Calcium (Ca) what is the perimeter of rectangle JKLM Lines e and f are intersected by lines a and b. At the intersection of lines a and e, the uppercase right angle is 110 degrees. At the intersection of lines b and e, the uppercase right angle is 110 degrees. At the intersection of lines b and f, the bottom right angle is 80 degrees.Which lines are parallel? Justify your answer.Lines a and b are parallel because their corresponding angles are congruent.Lines a and b are parallel because their same side exterior angles are congruent.Lines e and f are parallel because their corresponding angles are congruent.Lines e and f are parallel because their same side exterior angles are supplementary. describe one feature of the racing pigeon, that enables it to fly at high speed Determine if the sentence belowdescribes a one-time event or acontinuous event.Tu hablaste con Rebecca.A. One-time eventB. Continuous eventC. Neither Jons piggy bank contains 12 pennies, 9 nickels, 23 dimes, and 16 quarters. If Jon chooses one coin at random, how many possible outcomes are there if he is choosing a dime? Ameezy has four times as many water bottlesas Beetle does. If the two of them have acombined total of sixty bottles, how manymore bottles does Ameezy have than Beetle? what do you think is the most interesting about spain food customs?