The answer is true, yw.
Coniferous forests grow in a wide range of climates, from the coldest polar regions to the warmest tropical regions and everything in between. This statement is true.
What are conifers ?Conifers are a type of gymnosperm plants bearing cone like structures in which the seeds are located. Don't be fooled by the fact that coniferous woods are widespread around the world. Some of the wildest trees in the world can be found there.
Hyperion, a coastal redwood tree, is the tallest tree in the world, reaching a height of 379 feet, equivalent to a 35-story structure. From Siberia to Canada, coniferous rainforest biomes can be found. They have cold winters and warm to hot summers.
Temperatures in coniferous forests are quite low all year long. Summertime temperatures range from -7°C to 21°C, while the average wintertime temperature ranges from -54°C to -1°C. Hence, the statement is true.
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Explain the relationship between primary, secondary, tertiary consumers, and decomposers
Answer:
The organisms that consume the primary producers are herbivores: the primary consumers. Secondary consumers are usually carnivores that eat the primary consumers. Tertiary consumers are carnivores that eat other carnivores.
The colour observed hrainbow during on the lower side of a a sunny rainy day is
Answer:
..
Explanation:
A student was adding baking soda and vinegar in a bottle. They then put a balloon on top of the bottle immediately after adding them together. The student observed that the balloon inflated and got larger. The student then predicted that the chemical reaction between the vinegar and the baking soda had created brand new matter, and would have more mass at the end of the reaction. Would you agree with the student’s prediction or not? Explain your answer.
Whoever answers my question gets BRAINLIEST!!
Answer:
The prediction of the student about the amount of reactant and product is incorrect.
No, I do not agree with the student’s prediction because the amount of reactant is always equals to the amount of product. According to the Law of Conservation of Mass, mass cannot be created nor destroyed. Therefore in any chemical reaction the mass of the products must equal or same to the mass of the reactants so according to this law, the prediction of the student is incorrect.
Explanation:Give brailiest please
Answer:
The chemical reaction that occurs when vinegar and baking soda (sodium bicarbonate) are combined, creates a gas that is known as carbon dioxide (or CO2). I would agree with the student's prediction because the atoms rearrange themselves to create the product.
Explanation:
Hope this helps! Pls give brainliest!
which of these is chemical property
please help!! will have a thanks and brainliest
Answer:
A
Explanation:
I just did learned all about this
what is the percent of phosphorus by mass in phosphoric acid h3po4
Explanation:
% phosphorus by mass
= (mass of phosphorus ÷ mass of phosphoric acid) × 100%
= (30.974 g/mol ÷ 97.994 g/mol) × 100%
= 31.61 %∴ percent of phosphorus by mass in phosphoric acid 31.61%.Explain what the force of Gravity on each planet depends on.
Answer:
It depends on the size and mass of the object. Look at Jupiter. It has a higher gravitational pull because it has a higher mass
Which of these objects has the properties of a solid?
A.
desk
B.
water
C.
rain
D.
milk
Arrange the following elements in order of increasing atomic radius.
K, Li, O, Se
Answer:
Olkgvvyvvbhhhjuj link here
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An atom of oxygen (atomic number 8) has a mass number of 17. How many neutrons are
in that atom?
# of neutrons = mass number - atomic number
= 17 - 8
= 9
∴ number of neutrons in an atom of oxygen of mass number 17, is 9.the rays produced in a cathode tube are
Answer:
Electrons
Explanation:
Cathode rays carry electronic currents through the tube. Electrons were first discovered as the constituents of cathode rays. J.J. Thomson used the cathode ray tube to determine that atoms had small negatively charged particles inside of them, which he called “electrons.”
The rays produced in a cathode tube are electrons which are present in the shells surrounding the nucleus of an atom.
What is an atom?
An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.
The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.
Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.
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I will brainless who can answer this all pleaseeeeej
Answer:
False, True, True, False, False, not sure, True, False, True, True
here u go
50 POINTS!!!!!!
Reactions that occur spontaneously must reach an energy threshold before they can proceed. The graph shows the amount of energy needed for a reaction to occur. Explain how enzymes are involved in this reaction and can affect the rate of this reaction.
help please please please please please
Answer:
wow only six points, you have to amp it up a little
Explanation: because
10/4/2021
the total number of protons and neutrons in the nucleus
of an atom
a) atomic mass unit
b) mass number
c) atomic number
d) atomic mass
Answer:
atomic number
Explanation:
half of the earth is in the light and the other half is in the shadow because
Answer:
the sun doesn't shine on that half
Explanation:
Which statement best describes a chemical change?
O A. A substance changes size or phase.
O B. Atoms are made and destroyed.
O C. The nuclei of atoms are rearranged.
O D. Substances form new substances.
An atom has 21 protons, 24 neutrons, and 18 electrons. Which change will cause the atom to have more negatively charged particles than positively charged particles?
losing two protons
losing four neutrons
gaining three electrons
gaining four electrons
Answer:
ganar tres electrones
Explanation:
Answer:
gaining three electrons
If you have 10 tasks complete to finish a project‚ how many days will you need to spend working on this course if you spend five days on each task?
A.p.e.x l.e.a.r.n.i.n.g reading skills and strategies
Answer:
Well 50 of course
Explanation:
5 days per tasks is like saying 10 times 5 which is 50.
A dump truck, a sports car, and a bicycle are traveling at the same velocity. Which is true?
A The bicycle has the least kinetic energy.
B More information is needed to compare their kinetic energy.
C They all have the same kinetic energy.
D The sports car has the most kinetic energy.
Answer:
a
Explanation:
The object with greater mass is having greater kinetic energy. Here, all the objects has the same velocity therefore, the bicycle is having least kinetic energy.
What is kinetic energy?Kinetic energy is a form of energy generated by virtue of the motion of the object. The kinetic energy is related to the mass and velocity of the body by the expression below:
KE = 1/2 mv².
As per this equation, kinetic energy increases with an increase in mass or/ and velocity. The substance with greater mass is possessing the greater kinetic energy.
A dump truck has greater mass than a car and bicycle. Thus, at the same velocity for all, the greater kinetic energy is for the truck and the least kinetic energy is for the bicycle having the least mass here. Thus, option A is true.
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The best way to get the sugar out of a sugar-water solution is to __________.
Answer:
Distillation is the process by which sugar can be separated from the sugar solution.
Explanation:
Distillation, or classical distillation, is the process of separating the components or substances from a liquid mixture by using selective boiling and condensation.
Answer:
Boil the water, this would cause the water to evaporate and will leave behind the sugar crystals, which is known as distillation.
An ionic bond would most likely form between elements of which two families on the Periodic Table?
Answer:
Ionic bonds can form between nonmetals and metals, while covalent bonds form when electrons are shared between two nonmetals.
Explanation:
An ionic bond is formed between the electropositive and electronegative bonds. In the periodic table, it is formed between s block and p block elements.
What are chemical bonds?There are different types of chemical bonds: Ionic bonds, covalent bonds, and coordinate bonds.
Ionic bonds, also known as electrovalent bonds, are a type of linkage created in a chemical molecule by the electrostatic attraction of ions with opposing charges. When the valence (outermost) electrons of one atom are permanently transferred to another atom, a bond of this kind is created.
It takes place in positively charged cation and negatively charged anion. This type of bond is seen in NaCl, CaCl2, and other molecules.
Metal and non-metal, ionic bonding form. Ionic bonds, as opposed to covalent ones, involve the transfer of valence electrons between atoms.
An ionic bond is formed between the electropositive and electronegative bonds. In the periodic table, it is formed between s block and p block elements.
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the molecular formula mass of this compound is 150 amu . what are the subscripts in the actual molecular formula?
Answer:
You need the mass composition of the compound.
This composition works fine for the formula mass 150 amu.
C: 40.0%
H: 6.7%
O: 53.3%
From that, you can solve the problem following theses steps:
1) Convert mass composition fo molar ratios by dividing ech element by its atomic mass =>
C: 40.0 / 12 = 3.33
H: 6.70 / 1 = 6.70
O: 53.3 / 16 = 3.33
2) Divide all the numbers by the smallest one =>
C: 3.33 / 3.33 = 1
H: 6.70 / 3.33 = 2
O: 3.33 / 3.33 = 1
3) Write the empirial formula and calculate its mass:
C H2 O => 1 * 12.0 g/mol + 2 * 1.0 g/mol + 1 * 16.0 g/mol = 30 g/mol
4) Calculate how many times the empirical mass is contained in the molecular mass:
150 / 30 = 5
5) Conclusion:
The molecular formula is C5 H10 O5, i.e. the number of each atom in the molecular formula are:
C =5, H = 10, O = 5
PLEASE HELP! Which rock is an example of a chemical sedimentary rock?
coal
iron ore
shale
sandstone
Answer:
sandstone
Explanation:
Answer: iron ore
Explanation: The iron ore deposits are found in sedimentary rocks. They are formed by the chemical reaction of iron and oxygen mixed in the marine and fresh water.
What caused the water level in the pipe to change when you put the bottle in cold water
Answer:
Water cooled down and contracted.
Explanation:
When water contracts, its volume decreases. When the volume of the water in the bottle system decreases, the water is pulled farther down the clear pipe.
help pleaseeeee <333
Answer:
In Test 1 the person substantially did better and either had better knowledge of the subject or studied for it more then they did for Test 2.
Explanation:
what is the end-product of the beta-amylase reaction?
Answer:
maltose
Explanation:
β-amylase is an enzyme found in fungi, bacteria and plants but not in humans. Unlike α-amylase, β-amylase can only degrade starch from the non-reducing end of the polymer chain by hydrolysis of the second α-1,4 glycosidic bond. The end product is thus maltose, i.e. two glucose units.
calculate the volume of a box with the following dimensions: length=8 cm
width = 6cm and height = 5 cm
Answer: 240 cm³
Explanation:
Volume of the box = l × w × h
= (8 cm × 6 cm × 5 cm)
= 240 cm³
Limestral flour (calcium carbonate) is a weak base used for at a few years of intervals Neutralize the acidification that takes place by lakes and woodland. Would not be a good idea that instend Using the stronger base sodium hydroxide and then be able to use a little less amount?
Answer:
Well, no.
Explanation:
NaOH is a base which is found in soap, and other detergents which gives it the slippery feel, because, it is a really strong base. Applying this to lakes and woodland could make the water and woodland really concentrated which could make them harmful for domestic and industrial use
distinguish between the crust and and the lithosphere
Answer:
What is the difference between the crust and lithosphere? The crust (whether continental or oceanic) is the thin layer of distinctive chemical composition overlying the ultramafic upper mantle. ... The lithosphere is the rigid outer layer of the Earth required by plate tectonic theory.
Explanation: