Answer:
Above pH 8.3, a blue litmus paper stays blue but turns red in an acid. A neutral solution, or one between the upper and lower values of litmus paper, pH 4.5 and 8.3, will not change the paper's color
Explanation:
Answer:
A basic (alkaline solution) chemical with high pH (>7) turns red litmus paper blue.Please help due tomorrow
Answer:
synthesis, single-replacement, double replacement, decomposition, or combustion reaction
Explanation:
pretty sure this is right
Please do this, im posting more! ASAP.
Who was settling in Minnesota after the Civil War and why?
How do we use synthetic resources?
Answer:
Synthetic fabrics are useful because they have very different or enhanced (improved) properties in comparison to natural materials. Plastic raincoats, for example, are waterproof, and stretchy Lycra® keeps its original shape.
Explanation:
What is one benefit of using weather stations, weather balloons, and weather satellites to predict the weather?
a
Ability to change the weather in many different locations from land and space
b
Ability to control the weather in many different locations from land and space
c
Ability to observe the weather in many different locations from land and space
d
Ability to regulate weather in many different locations from land and space
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:
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
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:
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.
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.
1.Ridges, tectonic plate boundaries, and hydrothermal vents are physical features found on our planet. Where are these features found MOST OFTEN?
A. in the middle of huge lakes
B. around the edges of deserts
C. at the bottom of Earth's oceans
D. on top of mountains on continents
2.What are mid-ocean ridges?
A. They are areas where tectonic plates meet.
B. They are narrow valleys that run along the bottom of the oceans.
C. They are areas underwater where thick layers of sediment have accumulated.
D. They are areas of underwater mountain chains located near many active volcanoes.
3.Algae and other producers need lots of sunlight. Most ocean algae would be found in the water _____.
A. on the abyssal plain
B. in the oceanic trench
C. above the continental shelf
D. beside the continental slope
4.At which ocean feature would the greatest amount of water pressure be exerted?
A. Trench
B. Abyssal plain
C. Continental shelf
D. Continental slope
Please help thanks
Answer:
1. D
2. A
Explanation: Those are the only ones i know
HELP THIS IS SCIENCE I HAVING TROUBLE
Answer:
1/2 of the way down
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
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 (please get it right its my summative)
I think it is B but i am not sure
i am sorry if this is wrong
Please answer this!!!!!!!!!!!!!
Answer:
oo ok and please i like your pfp
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
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.
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
At 60 seconds, how far had this object traveled?
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.)
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 :)
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.
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
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
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.
Please answer!!!!!!!!!!!!!
Answer:
B. Decreased humus
Explanation:
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:
Who started the website "pintrest"
What is it called when to atoms combine?