Chemistry High School

neeeeeeeed help with science

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Answer 1

Answer: should be 28 degrees

Explanation:

Related Questions

What would it mean if a forecaster claimed, “There will be east winds of 25 to 30 mph

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Answer:

there will be winds moving from 25miles per hour to 30 miles per hour towards the east

HELPHELPHELPHELPHELPHELPHELP

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Answer:

Explanation:

increasing T (knowledge of direct proportion and Inverse proportion)

C . Po ang tamang sagot

How do the mass number and atomic change as a particle goes through beta decay

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Answer:

The atomic mass number does not change because a beta particle has a much smaller mass than an atom. The atomic number goes up because a neutron has turned into an extra proton, however in beta decay a fast-moving electron is fired out of the nucleolus

Hope this helped!

It never changes within the matter of things

How do i make observations and calculate data involving metric units?

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Answer:

How to make scientific observations?

Observe something through your senses or record information using scientific tools and instruments and ask questions about your scientific observations (e.g., natural phenomena).

How to calculate data involving metric units?

To convert from one unit to another within the metric system usually means moving a decimal point (e.g., 1000000mm = 100000cm = 10000dm = 1000m = 100dkm = 10hm = 1km).

How many times higher is the concentration of H+ in the Hubbard Brook sample than in unpolluted rainwater?

Answers

Answer:

1. 7 (a neutral solution)

Answer: 10-7= 0.0000001 moles per liter

2. 5.6 (unpolluted rainwater)

Answer: 10-5.6 = 0.0000025 moles per liter

3. 3.7 (first acid rain sample in North America)

Answer: 10-3.7 = 0.00020 moles per liter

The concentration of H+ in the Hubbard Brook sample is 0.00020/0.0000025, which is 80 times higher than the H+ concentration in unpolluted rainwater.

Explanation:

NaOH + HCI → NaCl + H20
*double replacement
*single replacement
*synthesis
*combustion

Answers

Answer: a double replacement

Explanation:

Overflow during a heavy rainstorm from a wastewater treatment plant would result in

A. polluted runoff into nearby ponds.
B. flooding in the local aquifer.
C. weakened housing foundations.
D. over-treated drinking water.

Answers

Answer: a.polluted runoff into nearby ponds

Explanation:

Answer:

Explanation:

If yeast is given more sugar will they undergo more
cellular respiration than yeast that is given less sugar?

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Answer:

True

Explanation:

Cellular respiration is a metabolic pathway that allows cells to take apart food molecules and use their atoms as an energy source. This pathway takes electrons from food molecules and transfers them to oxygen, has energy transferred to ATP and arranges molecules into water, carbon dioxide and waste.

molecular mass meaning in chemistry?

Answers

Answer:

Molecular mass is a number equal to the sum of the atomic masses of the atoms in a molecule.

Explanation:

The molecular mass gives the mass of a molecule relative to that of the 12 C atom, which is taken to have a mass of 12. Hence why Molecular mass is a number equal to the sum of the atomic masses of the atoms in a molecule.

Look at the diagram below, which shows an atom of an element. How many valence electrons does it have? Based on this, would the atom be reactive or unreactive?

Answers

1. The number of valence electrons the atom have is seven (7).

2. The atom is reactive

1. How do i determine the number of valence electron in the atom?

Valence electron is simply defined as the number of electron(s) present in the outermost shell of an atom.

Considering the diagram given from the question, the number of electrons in the outermost shell is seven (7).

Thus, we can conclude that the valence electron the atom have is seven (7)

How do i know if the atom is reactive or not?

From the diagram given, we determine that the number of valence electrons present is 7. This means that the atom required 1 more electron to complete its octet configuration.

Thus, the atom will be very reactive in order to quickly attain a stable configuration.

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IBNEED HELP ASAP
NO BULL I NEED ACTUAL HELP

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Answer:

god says dont use any assault language okay?

Explanation:

what is the difference between quantative and qualitative analysis

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Answer:

I guess quantitative data is countable or measurable, relating to numbers; qualitative data is descriptive, relating to words. Quantitative data lends itself to statistical analysis; qualitative data is grouped and categorized according to themes.

Explanation:

Answer:

quantitative - actual numbers as data

Qualitative- uses senses (taste, touch, etc.)

Explanation:

How many Zn atoms are there in 4.65 moles of Zn?
atoms
Submit Answer
Retry Entire Group
9 more gra

Answers

There are 6.5 grams

1. What is the symbol for atomic mass? What are the units of atomic mass in terms of atoms? 2. What is the symbol for molar mass? What are the units of molar mass? 3. What is the atomic mass of iron, with units? 4. What is the molar mass of iron, with units? 5. What is formula mass? What are the units of formula mass? 6. What is the formula mass of sodium bicarbonate, with units? 7. What is the molar mass of sodium bicarbonate with units? 8. What is the molar mass of water? 9. What is the molar mass of ammonia, NH3? 10. What is the molar mass of lithium oxide? 11. What is the molar mass magnesium bicarbonate? 12. What is the molar mass of cobalt(III) carbonate?

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i am NOT gonna read all of that

Hello, I need help in this part of chemistry, I need the chemical names of the following four:

1) B and F3

2) Se and I2

3) As2 and Se3

ASAP! Please,,,

Answers

1- Biron trifluoride
2- selenide
3- arsenic triselenide

What are the sources of the majority of fats and oils in the typical human diet? a )The fats come from plants; the oils come from animals. B )Both fats and oils come from plants. C) Both fats and oils come from animals. D)The fats come from animals; the oils come from plants.

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I totally agree its D

someone help me on these two 2

Answers

Answer:

Question 4 is- Solubility

Question 5 is- Suspension

Hopes this helps >:D

define the term pure substance

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Answer:

Pure substances are substances that are made up of only one kind of particles and has a fixed or constant structure. Pure substances are further classified as elements and compounds. An element is a substance that consists of only one type or kind of atom

Answer:

define the term pure substance :

A pure substance does not have to be of a single element or compound, This can either be one single element or one single compound, but every sample of this substance that you examine must contain exactly the same thing with a fixed, definite set of properties

Explanation:

4. Calculate the heat energy needed to heat 25.0 g of water from 13.0°C to 18.0°C. Use chart above for specific heat of water. Use units and show all work.

Answers

Answer: I go search some information

Explanation:I come back with a answer

Is Chlorine and Sodium an Ionic or Covalent bond?

Answers

Answer:

It is an Ionic bond

What is the value that is MEASURED in a lab?

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Answer:

To use standard laboratory measurement devices to measure length, volume and mass amounts.

The Moon only emits light at night.
True
False - does not emit light at all

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Answer:

It's trueeeeeee:))))))

Answer:

TRUE

Explanation:

Need help on science ASAP

Answers

Answer:

Explanation:

The plates are moving away from each other

How are the environment of a swamp in a rain forest similar

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They both have huge growth of vegetation and are both extremely humid with good amounts of rain

However, in day-to-day experience, the strangeness of Einstein's ideas doesn't help us, and Newton's notions do just fine. In everyday Life, when gravity isn't especially intense, Newton's and Einstein's ways of thinking lead to similar results. The two explanations work like different languages that express the same thing.
—A Black Hole Is NOT a Hole, Carolyn Cinami DeCristofano

Why is it important to learn about Newton's view of gravity? *

It is similar to Einstein's theory.
It is important to know other languages.
It works in most daily situations.
It explains how a black hole works.

Answers

Answer:

It works in most daily situations.

Explanation:

Answer:

C. It works in most daily situations.

Explanation:

Edge-nuity 2022

1. Which of the following would not be a good way to describe a body system?
A. Body systems are like computer programs that have to communicate with each
other in order to make the computer work.
B. Body systems are like runners in a marathon who each run alone and don't need the
other runners to finish the race.
C. Body systems are like machines with many different moving parts.
D. Body systems are like individual parts of one big story.

Answers

Answer:

the answer would be b

Explanation:

the body sytsem needs to depend on eah other in order to work

Body systems are like runners in a marathon, who each run alone and don't need the other runners to finish the race, is not a good way to describe a body system, hence option B is correct.

How body systems work together?

Your digestive tract takes nutrients and water from the food you eat in to your body. The body's cells receive oxygen, water, and nutrients through your circulatory system.

Your skin, excretory system, and respiratory system all function to remove wastes from your cells.

Your body's many systems depend on one another to function properly. While your heart's muscles require oxygen from your lungs to beat, your respiratory system depends on your circulatory system to distribute the oxygen it collects.

Therefore, option B is correct.

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What do elements and compounds have in common? And how do they differ?

I will mark brainliest for the best answer.

WARNING: DON'T PUT LINKS I WILL REPORT YOU!

Answers

elements and compounds might appear different, yet they share many similarities, like being made up of atoms and having bonds linking their atoms together. Elements and compounds also share the qualities of being both pure and homogeneous substances. Substances can be categorised as either elements or compounds. Both of these are made up of atoms, the only difference is an element is made of one type of atom whereas compounds are made of two or more different types of atoms.

Microorganisms have a major role in maintaining soil biodiversity. They recycle nutrients in ecosystems and decompose organic matter in soil. Organic matter contains dead and living plant and animal materials. Microorganisms convert these materials into simpler compounds that maintain soil quality and help with plant growth.

Which solution could best help to restore or increase microorganisms and soil biodiversity?
A.
adding manure or compost to the soil
B.
spraying chemical weed-killers and fertilizers on the soil
C.
removing all ground-covering plants from the soil
D.
adding sewage containing synthetic materials to the soil

Answers

Answer:

A i think

Explanation:

The solution that could best help to restore or increase microorganisms and soil biodiversity is adding manure or compost to the soil.

What are microorganisms?

A microorganism, or microbe, is an organism of microscopic size, which may exist in its single-celled form or as a colony of cells. The possible existence of unseen microbial life was suspected from ancient times, such as in Jain scriptures from sixth century BC India.

“Microorganisms are minute organisms that are invisible to the normal eye.” Microorganisms are so small that they can only be seen under a microscope. These include a huge range of organisms such as bacteria, viruses, fungi, algae, protozoa, etc.

Given options are-

A. adding manure or compost to the soil

B. spraying chemical weed-killers and fertilizers on the soil

C. removing all ground-covering plants from the soil

D. adding sewage containing synthetic materials to the soil

Therefore, The solution that could best help to restore or increase microorganisms and soil biodiversity is adding manure or compost to the soil.

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How can a weaker party impact the law making process?

Answers

Answer: This is due to a dominance of political parties over ... legislative process, the influence opposition has on amending the government bills and formal and effective

Explanation: hope u get it right

Why must the mass of reactants in a chemical reaction
always equal the mass of products?

Answers

Answer:

law of conservation

Explanation:

matter cannot be destroyed nor made

Other Questions

Logan y Tanner le ________ (escribir, ver, regalar) unas gafas de sol a Matt en la clase de espaol. heelpp i am failing spanish Youll thank me later! write a story that end with the phrase i will never do that again Someone told meLove was onlyIn the moviesIt don't exist in real life these days nowBut you showed meIf I only just find the faith I need to believeAnything is possibleIf you want it bad enoughKnow the sky, end too highTest your limitsYou can feel unstoppableIncredibleOh still, I can see I'm so readyOh this has gotta be the night that dreams come trueEverything feels just rightGirl when I'm with you, you know, girl i'll be holdin' onSaid you feel my loveDid you feel my loveImma have you likeAh Question:A group of health researchers survey a SRS of 300 teenagers, of whom 120 have low weekly outdoor activity levels and 180 have high weekly outdoor activity levels. Suppose that 35 percent of teenagers with low outdoor activity levels have allergies, and that 41 percent of teenagers with high outdoor activity levels have allergies. The researchers want to see the difference between the sample proportions. What will be the shape of the sampling distribution be and why?Choices:A. Approximately normal, because we expect 105 successes and 195 failures from teenagers with low levels, and 123 and 177 from teenagers with high levels, and all of these counts are at least 10.B. Approximately normal, because we expect 42 successes and 78 failures from teenagers with low levels, and 73.8 and 106.2 from teenagers with high levels, and all of these counts are at least 10.C. Not normal, because we expect fewer than 10 failures in both samples.D. Not normal, because we expect fewer than 10 successes in both samples. 9x -5y = 16 -3x + 7y = 16-4x - 2y = 1410x - 7y = 25 Campus athletics is interested in the proportion of registered students living on campus who play basketball recreationally during the semester. They take a random sample of 198 registered students listed as living in campus housing and ask each whether or not they do so. A 95% confidence interval is correctly calculated from this data as (0.12, 0.18). Which of the following is the correct interpretation of this confidence interval ? a. None of these are correct. b. We are 95% confident that the proportion of the 198 sampled students that actually play basketball is between 0.12 and 0.18 c. We are 95% confident that, among the population of students that play basketball recreationally, the proportion who live on campus is between 0.12 and 0.18. d. The sample proportion of on-campus students that play basketball will be between 0.12 and 0.18 in 95% of samples of size 198 HELP HELP HELPPPPP PLEASEEE What is the answer please I need help if you send a link I will report because your just trying to scam someone The weight limit for suitcase is 23 kg. You want to make sure that you will not be charged baggage fees on your flight back. What is the weight limit in pounds? 1 kg = 2.2 pounds. A football field is 360 feet long. The titanic was 883 feet. About how many football fields long was the titanic? 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If the volume of the smaller cylinder is 30 cm3, find the volume of the larger cylinder.Required to answer. Single line text. If n = 3, what is the value of 6n 3?