Answer:
There must be somehting in the water or soil
Explanation:
To decide on criteria for structure strength to avoid damage from earthquakes, engineers look at ________ to determine __________.
A.old factors; bridge importance
B. the budget; what they can afford to build
C. historical data; earthquake hazard risks
D. future reports; earthquake requirements
ANSWER IN YOUR OWN WORDS!
How does the pH of an acid compare with the pH of a neutral solution?
Answer:
A pH of 7 is neutral.A pH of less than 7 is acidic.
Explanation:
What is it called when to atoms combine?
What are weather balloons? (3 points)
a Locations with instruments that measure weather conditions in specific land areas
b Numerical equations based on weather-related factors that forecast weather
c Objects that carry instruments into the stratosphere to measure atmospheric conditions
d Structures that orbit Earth in the exosphere to capture images and collect data
Explain how scientists learned about the magnetic poles of the Earth.
pls, help me w at least 1 sentence.
Answer:
ocean basalts
Explanation:
As the sea floor slowly spreads, the igneous rock(ocean basalts) of which it is comprised cools and congeals, recording the earth's current magnetic pole alignment.
BRAINLIEST FOR CORRECT ANSWERS
Match the term with its description.
Terms:
Acid
Alkaline
pH
Ion
Description:
A compound that increases the hydroxide ions (OH−) when it is dissolved in a solution.
A compound that increases hydrogen ions (H+) when it is dissolved in a solution.
An atom or molecule that has a positive or negative charge .
A value from 0 to 14 that is used to specify how acidic or basic a compound is when it is dissolved in water.
Answer:
A value from 0 to 14 that is used to specify how acidic or basic a compound is when it is dissolved in water.- pH
An atom or molecule that has a positive or negative charge- Ion
A compound that increases hydrogen ions (H+) when it is dissolved in a solution- Acid
A compound that increases the hydroxide ions (OH−) when it is dissolved in a solution- Alkaline
Explanation:
Hope this helps :)
How much energy (joules) is needed to heat 250 grams of water from 22 °C to 99 °C?
Answer:
[tex]\boxed {\boxed {\sf 80, 465 \ Joules}}[/tex]
Explanation:
We can use the specific heat formula, which is:
[tex]q=mc \Delta T[/tex]
Where q is the energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature.
We know the mass is 250 grams. The specific heat capacity of water is 4.18 joules per gram degree Celsius. Let's find the change in temperature.
ΔT = final temperature - initial temperatureΔT= 99°C- 22°ΔT= 77°CNow we know all the values:
m= 250 g c= 4.18 J/ g °CΔT= 77°CSubstitute the known values into the formula.
[tex]q=(250 \ g) (4.18 \ J/g \textdegree C)(77 \ \textdegree C)[/tex]
Multiply the first 2 numbers together. The grams will cancel out.
[tex]q=1045 \ J/ \textdegree C (77 \textdegree C)[/tex]
Multiply again. This time the degrees Celsius will cancel out.
[tex]q=80465 \ J[/tex]
The energy needed is 80, 465 Joules.
Which statement is true about the properties of water, hydrogen, and oxygen?
A) Water has the exact same properties as both oxygen and hydrogen.
B)Water has the same properties as hydrogen, but not oxygen.
C)Water has the same properties as oxygen, but not hydrogen.
D)Water has completely different properties than hydrogen and oxygen
Compare and contrast a natural and synthetic resource.
Answer:
The difference between natural and synthetic material is that natural materials are those that can be found in nature while synthetic materials are those that are chemically produced in a lab. Note that a natural material that is altered physically is still considered a natural material.
Many different materials are used for clothing and other products. Common natural materials include cotton, paper and wool. Common synthetic materials include plastics, which are typically polymers. Synthetic materials are often designed to be stronger and more resistant to damage than any commonly available natural material. There is a limited amount of natural materials available, but a near limitless amount of potential materials that can by synthetically created.
Please help due tomorrow
Answer:
synthesis, single-replacement, double replacement, decomposition, or combustion reaction
Explanation:
pretty sure this is right
Please answer this!!!!!!!!!!!!!
Answer:
oo ok and please i like your pfp
HELPPPPP
Which item is made from a basic ingredient?
answer choices
Soda
Wine
Leafy vegetables
Toothpaste
Answer:
Leafy vegetables?
Explanation:
If by a basic ingredient you mean a single ingredient then the answers is leafy vegetables
Consider the following comparison.
The organization of a book and the human body are very similar. First, a book begins with a single word on a page. Second, these words work together to form sentences which are words that are similar to each other. Third, the sentences work together to form a paragraph. Fourth, the paragraphs work together to form an entire chapter. Finally, all of the chapters join together to form a full book. Which statement below correctly compares the levels of organization of a book to the levels of organization of a human.
A.
The chapters in a book are like the cell in a human organism.
B.
The sentences in a book are like the tissues in a human organism.
C.
The paragraphs in a book are like the body systems in a human organism.
D.
The single word on a page is like the full human organism.
Please help asap!! How many groups did Mendeleev's original Periodic Table of Elements have?
A) 18
B) 5
C) 13
D) 8
What should i put in the box answer for brainliest
Answer:
4
Explanation:
(6+30)/9
36/9=4
Answer:
4
Explanation:
12(1/2)= 6
5(6)=30
3(3)=9
6+30=36
36/9=4
A yellow haze in the air caused by particles from cars and factories is _____.
A. acid rain
B. smog
C. oxygen
D. carbon dioxide
Answer:
b. smog
Explanation:
Answer:
B. Smog
Explanation:
Smog is found in the ozone or a yellow haze in the air caused by particles from cars and factories.
A compound secreted by honeybees to paralyze intruders in their hive is known as 2-heptanone. The formula for this compound is shown.
How many atoms of each element are in one molecule of 2-heptanone?
F 4 carbon atoms, 11 hydrogen atoms, and 1 oxygen atom
G 7 carbon atoms, 14 hydrogen atoms, and 1 oxygen atom
H 7 carbon atoms, 11 hydrogen atoms, and 8 oxygen atoms
J 6 carbon atoms, 14 hydrogen atoms, and 3 oxygen atoms
Answer:
- 7 carbon atoms.
- 14 hydrogen atoms.
- 1 oxygen atom.
Explanation:
Hello,
In this case, for the given compound, heptanone, whose chemical formula is:
We can write the molecular formula showing the present atoms of each element:
In such a way we have:
- 7 carbon atoms.
- 14 hydrogen atoms.
- 1 oxygen atom.
Best regards.
What’s the difference between a double replacement reaction and a single replacement reaction?
Answer:
A single-replacement reaction replaces one element for another in a compound. A double-replacement reaction exchanges the cations (or the anions) of two ionic compounds.
Explanation:
Choose three different items that are magnetic.
Answer: magnet, fridge and uh......metal
Explanation:
Answer:
Heres a few, I hope this is what you are talking about :)
Iron
Nickel
Cobalt
Neodymium
Speakers
Earbuds
Headphones
Cabinet Latch
Explanation:
From your list, select one biotic factor and one abiotic factor that you had a negative impact on. Propose a change you could make to prevent the negative impact in the future.
Be sure to include:
one biotic factor (1 point)
one abiotic factor (1 point)
Propose a change you could make to prevent the negative impact in the future. (1 point)
Your answer should include a complete sentence for each factor and explanation.
Be sure to check your grammar and spelling.
Sentence Starter:
One biotic factor I had a negative impact on was...
One abiotic factor I had a negative impact on was...
One way I could change my negative impacts in the future is by...
Answer:
what list?
Explanation:
Who was settling in Minnesota after the Civil War and why?
When was that one moment when you laughed the hardest
Answer:
last month!!
it was on yt
Answer:
My weightlifting coaches are all gay for each other and its hilarious to see 3 large buff men play fighting and wrestling around the weight room.
A student mixed 68 grams of vinegar with 7 grams of baking soda. The solution bubbled as sodium acetate (white solid), carbon dioxide, (gas) and water were produced. If sodium acetate and water in the flask weigh 60 grams, how much carbon dioxide was lost to the environment?
Answer:
15 grams of carbon dioxide
Explanation:
You would just add 68+7 and that gives you 75. Next subtract 75-68 and that gives you 15.
The answer, please!!!!!!!!!1
Answer:
A. and C.
Explanation:
B. is talking about volcanic rock and D. is talking about Metamorfic rock so A. and c. must be a about sedimentart rock (to be honest i don't understand C. but it definetly isn't B. or D. so it must be C.)
Who started the website "pintrest"
Please answer!!!!!!!!!!!!!
Answer:
B. Decreased humus
Explanation:
Which of the following is an example of the geosphere interacting with the cryosphere? (5 points)
Erosion due to glaciers creates valleys.
Frost damages the cells in plant tissues.
Plant roots make cracks in rocks and soil.
Metals are obtained from minerals by humans.
erosion is geosphere and glaciers are cyrosphere
Please help with this question!
HELP I NEED HELP ON THIS QUESTION THIS QUESTION IS A TRUE OR FALSE QUESTION ......hERE IS THE QUESTION.......Temperature is the measure of the average kinetic energy of a substance. _______________
True
OR
False
Answer:
True
Explanation:
Temperature is measuring how fast the molecules or atoms of a substance are vibrating. Since movement is kinetic energy, temperature is a measurement of that kinetic energy.
The atmosphere is full of nitrogen gas (N2). But plants cannot use nitrogen in this form. Summarize the roles of bacteria in making nitrogen available to plants and in returning nitrogen to the atmosphere.
They absorb nitrates from the soil into their roots. Then the nitrogen gets used in amino acids, nucleic acids, and chlorophyll. When a plant or animal dies, decomposers like fungi and bacteria turn the nitrogen back into ammonium so it can reenter the nitrogen cycle.