which two statements are true for both compounds and mixtures
A. Their particles are held together by chemical bonds
B. Their particles all have the same chemical formula
C. They are made up of more than one type of atom
D. They can be separated into two or more elements
Answers
Related Questions
screen shot attached please help fast i will give brainliest
Answers
Please Help will mark brainliest
1._____ rocks contain a variety of different rock particles that are cemented together.
2._____ rocks are formed when rocks are changed by heat and pressure.
3. When volcanoes erupt,_____ rocks are typically formed.
Answer choices
1. igneous, sedimentary, metamorphic
2. igneous, sedimentary, metamorphic
3. igneous, sedimentary, metamorphic
Answers
1. sedimentary
2. metamorphic
3. igneous
hope this helps and have a wonderful day :)
Answer:
igneous
Explanation:
The arrow in a chemical equation always points toward the
A reactant
B product
C right
D left
Answers
Answer:
The answer is product
Explanation:
Hope this helped Mark BRAINLEST!!!
During digestion, what happens in the stomach?
A. All food molecules are broken down into smaller molecules by chemical reactions.
B. Some types of food molecules are broken down into smaller molecules by chemical reactions.
C. Water in the food passes into the blood and travels to other organs where it is used.
D. Food passes into the blood and travels to other organs where it is used in various reactions.
Answers
Answer:
A
Explanation:
Food is digested in the stomach for several hours. During this time, a stomach enzyme called pepsin breaks down most of the protein in the food. The pancreas and gland cells of the small intestine secrete digestive enzymes that chemically break down complex food molecules into simpler ones.
Answer:
A
Explanation:
Which of the following statements fully describes what an object may do when it experiences unbalanced forces? Select the two best answers.
A. It may change directions.
B. It will move at a constant speed.
C. It may slow down.
D. It may slow down or speed up.
E. It will stay stationary.
Answers
Answer:b
Explanation:
Convert the following numbers of calories or
kilocalories into joules or kilojoules.
a. 7845 cal
b. 4.55 x 104 cal
C. 62.142 kcal
d. 43,024 cal
Answers
Answer:
a. joules=32823480 , kilojoules=32823.48
b. joules=1979868.8 , kilojoules=1979.8688
c. joules=260002.128 , kilojoules=260.002128
d. joules=180012416 , kilojoules=180012.416
Explanation:
calories to kilo joules=multiply the energy value by 4.184
calories to joules=multiply the energy value by 4184
kilo calories to joules=multiply the energy value by 4184
kilo calories to kilo joules=multiply the energy value by 4.184
What is causing the increasing amount of CO2 in the atmosphere? What could be done about it?
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Which statement best describes the atoms of the gas neon?
They slide past each other.
They move freely in all directions.
They vibrate in place.
They are packed closely together.
NEED HELP ASAP
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Answer:
B They move freely in all directions.
Explanation:
is copper a renewable resource? explain your reasoning
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Whats the sum of the coefficients in Na2O + AIBr3 = NaBr AI2O3 of all the reactants and products when this equation is balanced?
Answers
Answer:
Answer: 12
Explanation:
\({ \sf{3Na _{2} O +2 AIBr _{3} \rightarrow 6NaBr + AI _{2} O _{3} }}\)
\({ \tt{sum = 3 + 2 + 6 + 1}} \\ = { \tt{12}}\)
Answer:
12
Explanation:
3+2+6+1
Match the term to its definition (Lessons 6.03, 6.04 and 6.05)
(i can't fit this all without confusion)
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Answer: the first paragraph is rain forest biome and the 2nd one is arctic tundra biome and finally the last paragraph is ocean or marine biome
Explanation:
rain forests have warm temperatures and include alot of animals and plants , artctic tundra biome includes cold temperatures ice stuff and all that and ocean or marine biome is pretty much just the ocean with seals , whales and marine life yk.
Giving brainliest for best answer
Answers
Answer:
D JaDin
Explanation:
People use hot air balloons to rise high above the ground and be pushed by air currents from one place to another. The diagram shows a hot air balloon.
A type of chemical reaction, called combustion, takes place between propane and oxygen in the burners.
a. Describe a likely result of this chemical reaction that allows a hot air balloon to rise.
b. Describe a design feature the distance a hot air balloon can travel. Explain your reasoning.
Answers
Fueled by propane cylinders, gas jets produce the hot air that fills the envelope (similar to ones you might use on a portable camping stove).
WorkingSince heated air rises, hot air balloons are functional. with the rest. As though it were floating in water, the balloon rises as a result of this. The balloon naturally starts to slowly deflate if the air is allowed to cool.The molecules in the air start to migrate and spread out as the air within the balloon is heated, which results in a decrease in the air's density. The heated air is pushed below the cooler, surrounding air. the warm air is pushed upward as a result of this.For more information on hot air balloon kindly visit to
https://brainly.com/question/11178349
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Why is it important to find the net force on an object?
Answers
We have that It is important to find the net force on an object in order to gain the complete and total force acting on a Body so as to get a correct or accurate calculation.
From the question we are told
Why is it important to find the net force on an object?
Generally
Net force refers to the total or summation of all forces acting on a body
Therefore
It is important to find the net force on an object in order to gain the complete and total force acting on a Body so as to get a correct or accurate calculation.
For more information on this visit
https://brainly.com/question/21811998
Amy uses a piece of lab equipment to change electrical energy into thermal energy. What did she most likey do?
A. Warmed liquid in a test tube over a candle flame
B. Used a hot plate to boil a beaker of water
C. Mixed two chemicals to produce heat
D. Used a thermometer to measure the temperature of ice water
Answers
Answer:
The right answer is b ( using a hot plate to boil a beaker of water
Explanation:
To power the hot plate you have to have electricals that form heat on the metal plate of the top which then comes in contact with the glass beaker which finally boils the water causing heat to form called water vapor from the heat of the hot plate to the water.
What is the charge on the Cr in Cr2O72-
Answers
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
________________ substances have an equal amount of H+ and OH- ions in solution.
Answers
Answer:
Water, and other neutral
Explanation:
That means those substances have pH = 7.
When the amount of H+ is more than the amount of OH- in solution, the substance is acidic ( eg.: Lemon juice ). pH < 7
When the amount of H+ is less than the amount of OH- in solution, the substance is basic ( eg.: Baking soda ). pH > 7
What is the property that allows the oil and vinegar to appear separated in this salad dressing and to each go to the top/bottom of the bottle. Is this a chemical or physical property?
Answers
Answer:
physical
Explanation:
What are all the breeds of dogs and how many breeds of dogs are there?
Answers
Answer:
In the United States alone, the AKC's dog breed list currently includes 190 dog breeds. Worldwide, the FCI lists 360 officially recognized breeds.
Explanation:
There are approximately 400 separate breeds of purebred dogs worldwide. A purebred dog is considered to be one whose genealogy is traceable for three generations within the same breed
There are currently more than 340 different breeds of dogs recognised throughout the world.
Aubrey decided to visit a friend who lives 50 miles away. She drove 30 miles in the first hour of her trip and 20 miles the second hour of her trip. Aubrey's speed for the first hour of her trip was
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Help? Tysm if you do :>
Using the graph above, what was the cost of the most expensive invasive species?
200 billion US dollars
10 billions US dollars
148 billion US dollars
50 billion US dollars
Answers
What might happen if there is excessive water removal from the Central Valley Aquifer in California?(1 point) Responses
A. It can cause severe weather changes in California.
B. It can cause severe weather changes in California.
C. It can transform California completely to a desert.
D. It can transform California completely to a desert.
Answers
Answer:
A
Explanation:
California is surrounded by the sea so it would never run out.
what is the concentraction of H+ ions at a pH=11
Answers
Explanation:
I hope it's helpful for you
Answer:
1x10⁻¹¹
Explanation:
pH = -log [H+]
10⁻¹¹ = 1x10⁻¹¹
Which of the following can effect the resistance of a wire?
I. the length of a wire
II. the thickness of a wire
III. the temperature of a wire
II and III
I and III
I and II
I, II, and III
Answers
Answer:
I, II AND III
Beacaus resistance depend on length, thickness and temperature of wire
If length,temperature increases then resistance will increase but if thickness increase then resistance will decreases
HELP! 100 POINTS! A cinder block is pulled 0.50 meters to the right in 3 seconds. What is the block's average speed to the nearest hundredth of a meter per second (m/s)?
Answers
The average speed of the blocks are 0.36 m/S.
Explanation:
Average speed is defined as the ratio of distance covered per unit time. So if it is said that blocks are pulled to 0.9 m in the right side. This means the blocks cover a distance of 0.9 m from the origin and that distance is covered in 2.5 s. Thus, the average speed can be calculated from the change in speed
with respect to time. As at time t = 0, the speed is
also zero, and at time t = 2.5 s, the speed will be
Speed =
0.9 = 0.36
2.5
Since, in this case, the speed is equal to the average speed of blocks. So the average speed of the blocks will be 0.36 m/s.
2.5
Since, in this case, the speed is equal to the average speed of blocks. So the average speed of the blocks will be 0.36 m/s.
Where does most fresh water exist?
Answers
Answer:
aquifers, ice caps, and glaciers I think
(C) aquifers, ice caps and glaciers
Match each letter with the part of the wave it represents in the diagram below.
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See diagram attached
Answer:
A-wavelength, B=amplitude, C=crest, D=trough
Explanation:
Explain how potential energy and kinetic energy are the same. How are they different?
Answers
Answer:
Potential Energy is the stored energy in an object or system because of its position or configuration. Kinetic energy of an object is relative to other moving and stationary objects in its immediate environment. ... Kinetic energy can be transferred from one moving object to another, say, in collisions.
Explanation:
Answer: they both are energy and potential is staying still but kinetic energy in moving
Explanation:
clouds, precipitation, and ___________ occur at frontal boundaries
Answers
Which word names melted rock and minerals found beneath Earth's crust?
A. lava
B. magma
C. rhyolite
D. gabbro