Answer:
By watching the movement of cirrus clouds you can tell from which direction weather is approaching. When you see cirrus clouds, it usually indicates that a change in the weather will occur within 24 hours. Cirrostratus clouds are thin, sheetlike high clouds that often cover the entire sky.
Explanation:
im smart;)
A tall plant (Tt) is crossed with a short plant (tt). What is the phenotype of the offspring?
Group of answer choices
100%
75% tall; 25% short
25% tall; 75% short
50% tall, 50% short
plz help me i swear will mark you brainiest :(
Answer:
C. the relative molecular mass of the compound
Explanation:
Like molecular formulas, empirical formulas are not unique and can describe a number of different chemical structures or isomers. To determine an empirical formula, the relative molecular mass of the composition of its elements can be used to mathematically determine their ratio.
In a sealed container at constant pressure, the volume is 25L. When cooled down to 100K the volume decreases to 6.25L. What was the original temperature of the container? *
A. 50k
B. 100k
C.250k
D.400k
5N
12N
7N
HELP HELP
Answer:
Balanced
0N Stationary
Explanation:
One side = 5N + 7N = 12 N
Other side= 12 N
Equal newton so it's a balanced forced :
Balanced
0N Stationary
I hope i am understood and am right!
Give one hazard of using sodium hydroxide and state how to reduce the risks from this hazard.
Answer:
Sodium hydroxide is very corrosive. It can cause irritation to the eyes, skin, and mucous membrane; an allergic reaction; eye and skin burns; and temporary loss of hair. Workers may be harmed from exposure to sodium hydroxide.
Explanation:
How to reduce:
Inhalation: Move victim to fresh air.
Skin Contact: Avoid direct contact
Eye Contact: Avoid direct contact
Ingestion: Have victim rinse mouth with water.
When two clear substance combines, an insoluble solid is formed that settle downs as a
[tex] \huge \sf \underline \blue{Question} \colon[/tex]
When two clear substance combines, an insoluble solid is formed that settle downs as a ________.
[tex] \huge \sf \underline \blue{Answer} \colon[/tex]
When two clear substance combines, an insoluble solid is formed that settle downs as a precipitate.
→A precipitate is a substance to be deposited in solid form from a solution.
______________________________________
What does this rising heat and resulting convection cycle do to our rigid lithosphere
Answer:
The movement of heat by convection in the asthenosphere causes the rock of the mantle to slowly move in huge streams. ... As the rock of the asthenosphere moves in different directions, it carries parts of the lithosphere along with it. The lithospheric rock can't stretch, so it breaks into pieces--forming the plates.
Explanation:
Beryllium oxide is heated.
What is the chemical reaction equation?
Answer:
BeO
Reaction of beryllium with air
However, powdered beryllium metal does burn in air to give a mixture of white beryllium oxide, BeO, and beryllium nitride, Be3N2. Beryllium oxide is more normally made by heating beryllium carbonate. 2Be(s) + O2(g) → 2BeO(s)
Describe two patterns in the periodic table?
Answer:
Patter 1: Ionization Energy Decreases going down a group
Pattern 2: Ions tend to gain/lose the least amount of electrons
Take oxygen, for example. Oxygen has 8 electrons. To become like a noble gas it could either gain two to become like neon or it could lose six to become like helium. So what will oxygen do—gain two or lose six? As a general rule, atoms will gain or lose the fewest number of electrons possible.
Explanation:
I NEED UR HELP WITH THIS ILL MARK U AS BRAINLIST/5 star and a like. Just answer the ones u know I’ll still mark u as brainlist and also put numbers on the side so I know which is which, let’s see who can answer em with full sentences.
1. A potassium atom contains 19 protons:
A) how many electrons are present in a potassium atom? Justify your answer.
b) What is the electronic configuration of a potassium according to the Bohr model?
C) how many electrons are in the valence shell of a potassium atom?
D) what could be done to potassium atoms to make electrons jump into the fifth shell?
a) There are 19 electrons in a potassium atom. I don't really know how to explain it. I've been told that the number of protons and electrons are the same.
b) There are two electrons on the first shell, 8 on the second, 8 on the third, and 1 one on the fourth shell, which totals 19.
c) There is one electron in the valence shell.
d) I don't know what to do for this one. Sorry.
a) 19 electrons are present, the same number as the protons
b) [Ar] [tex]4s^{1}[/tex] (condensed)
c) theres one valence electron in a potassium atom
d) they could be heated
What is the molecular formula of a compound with an empirical formula P2O5 and a gram-molecular mass of 284 grams? And why?
A lithium atom has three protons, three neutrons, and three electrons. What is the overall charge on this atom?
Answer:
This atom is neutral as the number of electrons is equal to the number of protons
Answer:
It doesn't quite have a charge. The neutrons don't have a charge, the protons and electrons do. But, there are equal amounts of both, so the element Lithium is neutral.
Explanation:
Day 2 code word
Options are
1. Chloroplast
2. Cytokinesis
3 cytoplasm
4. Meiosis
Answer:
chloroplast
Explanation:
What's the correct answer?
Answer:
I will be (c) Plate Tetonics. Also there is a chance of being (d) Deposition
BTW the question is not that clear anyway i have figured it out
explain why there is a period of constant temperature during melting and freezing. use
Answer:
Because the heat energy provided at the moment of melting and freezing are used up in the transformation of the state of matter!!
Thus the temperature remains the same
Does the atomic number of an element equal the number of neutrons in an atom of that element?
Answer:
no
Explanation:
the atomic number the just the number below the symbol of the element as well as proton number or electron number, however if u want to work out the neutron number you have do mass number (which is on the top of the symbol) substact atomic number/proton number
Write the word and balanced chemical equations for the reaction between:
Sodium and water
Answer:
The balanced chemical equation for the reaction between sodium and water is:2 Na ( s ) + 2 H2O ( l ) 2 NaOH ( aq ) + H2 ( g ) We can interpret this to mean: 2 moles of water and ? ... mole(s) of hydrogen.
How many molecules are in a 89.2 gram sample of carbon dioxide (CO2)
Explain the relationship between overpopulation and diminishing water supplies.
Answer:
if a place is overpopulated, they will use more water than they have.
Explanation:
pretty much the explanation right there
Answer:
Explanation:
As human populations grow they consume more water, not just by drinking, but through all of the other human activities that require freshwater such as agriculture, bathing, cleaning, etc. Overpopulation, therefore, can lead to overconsumption as populations use more water than an area can support and replenish sustainably.
What is acetic acid (CH3COOH)
Answer:
Acetic acid (CH3COOH), also called ethanoic acid, the most important of the carboxylic acids. A dilute (approximately 5 percent by volume) solution of acetic acid produced by fermentation and oxidation of natural carbohydrates is called vinegar; a salt, ester, or acylal of acetic acid is called acetate.
Answer:
the acid that gives vinegar its characteristic taste. The pure acid is a colourless viscous liquid or glassy solid.
Explanation:
HOPE IT HELPS YOU......
Identify which is the result of a physical rather than
a chemical change?
Answer:
b
Explanation:
BRAINLIEST!! PLS HELP!!
Answer:
b be aosum
Explanation:
pls help me!!!!
A.Ants and tarantulas
B.Rats and Snakes
C.Cacti and Sagebrush
D.Hawks and Coyotes
Answer:
C since both are plants which are the producers
Answer:
Cacti and Sage Brush
Explanation:
because they are plants so they produce food on their own
I'LL GIVE BRAINLIEST PLEASE HELP. I need to give two arguments as to why climate change is not linked to greenhouse gases and I have no idea what to put.
As greenhouse gas emissions from human activities increase, they build up in the atmosphere and warm the climate, leading to many other changes around the world—in the atmosphere, on land, and in the oceans.
Hope it helps:D
If 125 grams of KCIO3
decomposes completely,
how many moles of
oxygen gas is produced?
Which best describes particles in a liquid?
more freely moving than a solid
completely stationary
more freely moving than a gas
Answer:
More freely moving than a solid
Explanation:
what is the definition of behavior?
Answer:
the definition of behavior is the way in which someone conducts oneself or behaves.
Answer:
the way in which one acts or conducts oneself, especially towards others.
For example
he will vouch for her good behaviour"
what percentage will have heterozygous genotype?
Answer:
In another example (shown below) if the parent plants both have heterozygous (YG) genotypes, there will be 25% GG offspring in average. These percentages are determined based on the fact that each of the 4 offspring boxes in a Punnett square is 25% (1 out of 4)
I hope this helps! :D
what is the past tense of I'll
Answer:
i would or i have or i did
Explanation:
Answer:
I would or I would of and I think or ill do it if yk then yk
Your friend says that she heard about a special type of ink that is only visible when it is out in the sun. Can light from the sun cause this ink to become visible?
Yes, the ink can take in energy from the light, causing it to become visible.
Answer:yes it can
Explanation: