Can someone help me balance these chemical equations?
1. CuF2 + Mg ---------> MgF2 + Cu3
2. Na + H2O ----------> NaOH + H2
3. KBr + Cl2 ------------> KCl + Br2
Explanation:
(1) CuF2+Mg-------->MgF2+Cu
(2) 2Na+2H2O --------> 2NaOH+H2
(3) 2KBr+Cl2-------->2KCl+Br2
Please help !! Science !!
just tell me in your answer what each one is !
thanks !
Answer: PUMPKIN
Explanation:
The diagram below shows the branching tree diagram for cats.
A slanting, horizontal line is shown. On the extreme left, there is a label that says Common Ancestor. Along the slanting, horizontal line there are five dots labeled from left to right with the following traits, Four limbs, Amniotic egg, Fur, Shearing teeth, and Retractable claws. There is one vertical line between each of the consecutive five dots. The lines are labeled from the from left to right as Amphibians, Reptiles, Marsupials, Dogs, Cats.
Which shared derived characteristic do reptiles, marsupials, and dogs have?
Amniotic egg
Fur
Retractable claws
Shearing teeth
Answer:
Shearing Teeth
Explanation:
The boiling point of a substance will be the same temperature as its
melting point
condensation point
freezing point
sublimation point
Answer:
condensation point
Explanation:
boiling point is the temperature that a liquid turns to gas,
condensation is the point a gas turns to liquid
describe the difference between extensive and intensive properties
Answer:
Intensive and extensive properties are both physical properties. However, intensive properties dont depend on the amount of matter present in a sample, whereas extensive properties do. Intensive properties only depend on the type of matter, such as color, temperature, or solubility. Extensive properties depend on the amount of matter, such as mass, volume or energy
Explanation:
1. What is one major pattern in the fossil record?
5.
Which statement accurately describes the atoms of a specific element?
a.)A zinc‚ Zn‚ atom contains 30 protons inside the nucleus and 30 electrons outside the nucleus.
b.)A scandium‚ Sc‚ atom contains 45 electrons outside the nucleus and 21 neutrons inside the nucleus.
c.)An indium‚ In‚ atom contains 115 protons inside the nucleus and 49 neutrons outside the nucleus.
d.)An aluminum‚ Al‚ atom contains 27 electrons and 27 protons inside the nucleus.
As a phase change occurs when energy is removed or added to a system, the temperature of the substance stays constant because
some substances reach a maximum temperature and will not get hotter.
energy is being used to change the chemical composition of the substance.
energy is moving too quickly for the thermometer to register a change
energy is being used to make or break bonds between molecules.
Answer:
energy is being used to make or break bonds between molecules
Explanation:
if correct please consider brainliest
PLEASE HELP!
The diagram below represents geographical features found in the ocean.
What symbolizes a rift valley?
A. 2
B. 3
C. 4
D. 5
Answer:
The answer is C, number 4 shows a rift valley
Explanation: This is because the shape of the feature is literally a rift and it forms a valley lol. Also i have some evidence:
Which shared derived characteristic do reptiles, marsupials, and dogs have?
Amniotic egg
Fur
Retractable claws
Shearing teeth
Answer:
Shearing teeth
Explanation:
Just use process of elimination. Dogs don't lay eggs, reptiles don't have fur, neither of them have retractable claws, so the only one left is shearing teeth.
Which type of rock is MOST LIKELY to form because of high heat pressure
Answer:
Metamorhpic rock
Explanation:
Answer:
Metamorphic RocksWhich ecological relationship is best represented by this graph?
Note: Species A's population increases and Species B's population increases over time.
1: Mutualism
2: Commensalism
3: Parasitism
What procedure did you use to complete the lab? weather patterns
Outline the steps of the procedure in full sentences.
Answer:
yeah
Explanation:
4. If you could repeat the lab and make it better, what would you do differently and why?
There are always ways that labs can be improved. Now that you are a veteran of this lab and have experience with the procedure, offer some advice to the next scientist about what you suggest and why. Your answer should be at least two to three sentences in length.
Which solid is most dense? ______________________________
Which liquid is least dense? ______________________________
Which solid is about as dense as dish soap? ______________________________
Answer:
bolt
lamp oil
cherry tomato
How is precambrian time different from other divisions of the geologic time scale?
Precambrian time is different from other divisions of the geologic time scale as the life forms in this time had soft bodies.
What are geologic time?Geologic time is the time that is begins at the start of the Archean eon and it is the extensive interval of time occupied by the geologic history of the earth.
Precambrian time is the the earliest time of the geologic ages, which are marked by different layers of sedimentary rock including the fossilized remains of plants and animals buried when the sediments were formed. Main difference between both the times is in Precambrian time life-forms had soft body parts and in Geologic time life-forms had hard body parts.
Hence main difference is of life forms.
To know more about geologic time, visit the link:
https://brainly.com/question/6839305
Can someone help quick
Answer:
Sodium
(Na)
Just count the electrons and search which atom it is.
PLSSsss HELP ASAP :)
Answer:
Travis categorized their characteristics correctly.
Explanation: This is because plants use chloroplast in their cells to help them with photosynthesis, and this is what turns them green. Animals do not make their own food so they have no use for chloroplast in their cells.
Answer:
Travis is correct
Explanation:
Photosynthesis takes part in Chloroplast
Based on the "Heating Curve for Wax," what is the boiling point for wax?
255°C
50°C
340°C
155°C
What kind of value does biodiversity have within an ecosystem?
Responses
A. Ecological value
B. Recreational value
C. Economic value
D. All of the other answer choices
Answer:
A. Ecological value
Explanation:
How is biodiversity related to niches?
Responses
A. In an ecosystem, the niche is how an organism makes its living.
B. Biodiversity is required to support keystone species' niche.
C. The more niches in an ecosystem, the greater the biodiversity.
D. The fewer niches in an ecosystem, the greater the genetic diversity within a species.
Answer:
C. The more niches in an ecosystem, the greater the biodiversity.
Explanation:
Copper and gold have similar reactive properties. On the Periodic Table of the Elements, these elements are most likely to...
Select one :
A || have nearly the same mass.
B || have the same number of protons.
C || be in the same group.
D || be in the same period.
Answer:
C. Be in the same group
Explanation:
Most elements in the same group have similar properties.
Copper and gold have similar reactivity properties, thus they are most likely to belong to the same group. Thus option C is correct.
The reactive properties or the chemical properties of an element have been based on the presence of the valence electrons in the atom.
The valence electrons in the atom are responsible for the bond formation and other intermolecular interactions thereby contributing to the reactivity of the atom.
In the periodic table, on moving down the group, the number of valence electrons to the atoms remains constant with the increase in the size of the atom. Thus, the elements belonging to the same group have consisted of similar reactivity properties.
Copper and gold have similar reactivity properties, thus they are most likely to belong to the same group. Thus option C is correct.
For more information about the reactive properties, refer to the link:
https://brainly.com/question/4504712
HELP PLEASE ! ! DUE TODAY
The picture shows Halley’s comet, which orbits the Sun and can be seen from Earth every 75 to 76 years.
Halley’s comet orbits the Sun because :
A. the comet has a magnetic field that is attracted to the Sun's opposite magnetic field.
B. the force of gravity between the comet and the Sun influences the comet’s motion.
C. the rotation of the solar system creates winds that push it around the Sun.
D. the comet is attracted to the outer planets that sling it toward the Sun at a high speed.
Answer:
B is the correct answer I say
plsss help ASAP :)))))))))))))))))))))
HELP PLEASE!
The picture below shows a 24-hour weather map for Texas.
What does the map indicate the weather will be for Alex's city?
A. Stormy weather caused by a warm front.
B. Clear weather caused by a high-pressure front.
C. Clear weather caused by a cold front.
D. Stormy weather caused by a high-pressure front.
Answer:
C
Explanation:
plzzzzzzz help meeeeeeee
Answer:
because one is going into your mouth and the other you feel with your hand.
Explanation:
idek
hi pls answer i will give brainiest
How are weathering and erosion different? Choose the best statement.
A. Weathering is the movement of rock and erosion is when the rock remains in the same place.
B. Weathering causes rocks to break down and erosion is when the rocks are carried from one place to another.
C. Erosion occurs over a longer period of time and weathering occurs over a shorter period of time.
D. Weathering is caused by wind, water, and other rocks but erosion is caused only by wind.
Where is the most common place thought of for transformational boundaries?
This formula shows the chemical reaction that occurs when the body breaks down sugar. The products are carbon dioxide and water.
How many carbon atoms are needed in this reaction?
Answer:
i like nuggs
Explanation:
help me! :> i need help badlyyy
Answer:
Explanation:
s
Answer:
the answer is S
Explanation:
( protected DNA )