Answer:
Carbon dioxide as well as water are needed for photosynthesis.
Explanation:
why is the symbol [Ar] used in the electron configuration of potassium, and what does it represent?
Answer:
To denote a stable inner configuration and it represents argon
Explanation:
The symbol [Ar] used in the electron configuration of potassium represents the inner electronic configuration of the element.
This argon atom is stable octet with completely filled shells. Most noble gases are used to write the electronic configuration of other atoms. The inner atomic orbitals of elements are similar to those of nearby noble gases.
Ar is Argon with a configuration of 1s² 2s² 2p⁶ 3s² 3p⁶So, this configuration is stable and it the inner configuration of potassium excluding the outermost orbitals.This substance can be either homogeneous or heterogeneous.
element
compound
mixture
pure substance
Answer:
I think it's Element and compound
Explanation:
Sodium chloride (NaCl) is formed in a chemical reaction between sodium (Na) and chlorine (Cl2).
What is sodium chloride?
14.
A.
an element
B.
a mixture
C.
a compound
D.
an atom
PLEASE HELP ME I WILL BRAINLIST YOU AND GIVE YOU POINTS
Answer:
Carbon 12 and carbon 13
Carbon isotope 12 exist as 98.9%
Explanation:
Answer:
Y is 98.9 which is the answer for Y.
Which forms of energy are released by a burning candle? (2 points) a Light energy and chemical energy b Light energy and heat energy c Heat energy and electrical energy d Mechanical energy and heat energy
Answer:
light and chemical energy
Explanation: mark me brainliest please
Help would be much appreciated, I'm being timed
I'll mark brainliest !!
Answer:
I think its 16 hope it helps
Explanation:
The diagram shows the life cycle of a pine tree.
What happens during the stage lableled 6
A. Young male cones produce spore using meiosis.
B. Young female cones produce spores from cells that divide using meiosis.
C. A spore divides and grows into a pollen grain grain using mitosis
D. A seed that contains an embryo plant grows into a young pine tree.
Answer: D- A seed that contains an embryo plant grows into a young pine tree.
Explanation: The embryo plant comes from a pinecone seed so it can grow into a new plant.
The stage labeled 6 is a seed that contains an embryo plant grows into a young pine tree. The correct option is D.
What is a plant embryo?Plant embryonic development, also known as plant embryogenesis, is the process that occurs after an ovule is fertilized to produce a fully developed plant embryo.
This is an important stage in the plant's life cycle, following dormancy and germination.
Embryogenesis occurs naturally as a result of ovule fertilization, giving rise to two distinct structures: the plant embryo and the endosperm, both of which develop into seeds.
In order to produce a mature embryo, the zygote goes through several cellular differentiations and divisions.
The sixth stage is a seed containing an embryo plant that grows into a young pine tree.
Thus, the correct option is D.
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What chemicals can I mix together that will cause a huge explosion that is safe for school? It can't be a vinegar and baking soda explosion because I already have it. Please help!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Adding baking soda to vinegar, the reaction is delayed, but then fizzes the same amount. More vinegar is better.
Explanation:
How many valence electrons are found in gallium? 3 5 7 8
how can you best classify this molecule. A) carboxylic acid. B) Alcohol C) Ester D) Amine
Answer:
b) Alcohol
Explanation:
it is methanol
What is the random mixing of gas molecules called?
O A. Volume
O B. Temperature
C. Diffusion
O D. Pressure
Answer:
C. Diffusion
Explanation:
just did
Lithium
Which statement about lithium describes what makes lithium very reactive?
F.
The number of neutrons in the nucleus.
G
The number of electrons in the first energy level.
H.
The number of protons in the nucleus.
J.
The number of electrons in the last energy level.
Answer:f
Explanation:
The smallest particle an element can be divided into is the A electron B neutron C isotope D atom
Answer:
D atom
Explanation:
Solvent: Will give brainliest
Answer:
Solvent is 1.00 liter of water.
Answer:
It would be the water i think rlly srry if im wrong thats just what i got
Explanation:
because a solvent would be the one dissolving
please help me!!ASAP
Answer:
particle E and R
Explanation:
isotopes = atoms of same element with same proton number but different number of neutron
nucleon number = proton number + number of neutrons
particle E
- nucleon number = 16
- proton number = electron = 8
- number of neutrons = 16-8 = 8 ✅
particle Q
- nucleon number = 18
- proton number = electron = 9
- number of neutrons = 18-9 = 9
particles R^2-
- nucleon number = 18
- proton number = 10-2 = 8
- number of neutrons = 18-10 = 8 ✅
particle T^+
- nucleon number = 22
- proton number = 10+1 = 11
- number of neutrons = 22-11 = 10
can someone help me please.
Answer:
ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
Explanation:
ccccccccccccccccccccccccccc
A can of soda contains many ingredients, including vanilla, caffeine, sugar, and water. Which ingredient is the solvent? caffeine sugar vanilla water
Answer:
Water
Explanation:
Water is universal solvent it can disolves other things
From the can of soda containing many ingredients, including vanilla, caffeine, sugar, and water, the solvent is water.
What is a solvent?A solvent is a substance that dissolves other substances. This solvent is usually in liquid form.
Water is universal solvent, this implies that water dissolves almost every substance.
Thus, from the can of soda containing many ingredients, including vanilla, caffeine, sugar, and water, the solvent is water.
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please help with chem final need answers within one hour i’ll give brainliest
Answer:
1. 7
2. 7
3. 16.60
Explanation:
1. 7
3x-3=18
+3 +3
3x=21
/3 /3
x=7
2. 7
4x-5=23
+5. +5
4x=28
/4. /4
x=7
3. 16.60
it reaches above the halfway point after 16, and it's one above it. So, it's 16.60
How many valence electrons does an atom of oxygen have and what noble 1 point
gas will it be most like after forming a chemical bond? *
1)8 electrons and neon
2)2 electrons and fluorine
3)6 electrons and neon
4)6 electrons and argon
3)6 electrons and neon
Further explanationIn an atom there are levels of energy in the shell and sub shell
This energy level is expressed in the form of electron configurations.
The electron configuration Oxygen (atomic number = 8) :
1s²2s²2p⁴
Oxygen will try to achieve stability (according to the octet rule) by binding 2 electrons so that the 2p orbits are filled with 6 electrons, so that the configuration is stable like the noble gases Neon
₁₀Ne = 1s² 2s² 2p⁶
Convert 9.90km to mm
Answer:
9900000
add 20 LeTtErS or mOrE
what is the difference between air pressure and gas pressure?
EASY WORDS PLEASE
Answer:
Air pressure is what you measure with a tire gauge. Atmospheric pressure is what you measure with a mercury barometer. ... Pressure is the amount of force per unit area that a gas exerts on a surface
Explanation:
none
I am in the 4th period, I have 10 electrons in my 3rd shell and only 2 electrons in my 4th shell. What am I?
The chemical equation S + 02 - S02 is an example of which type of reaction?
Single displacement
Combination
Double displacement
Susie is in the kitchen making brownies. She melts butter in the microwave, turns on the oven to preheat, and uses the electric mixer all at the same time. Which best explains how Susie can turn off without the other appliances turning off as well?
Answer:
A.
The circuits are wired in series, and when one appliance turns off, the others can still run.
B.
The circuits are wired in parallel, and when one appliance turns off, the others can still run.
C.
The circuits are wired in series, and when one appliance turns off, the others will switch to parallel circuits for power.
D.
The circuits are wired in parallel, and when one appliance turns off, the others will switch to series circuits for power.
Explanation:
The answer is b i just took it
Step 6: Measuring the Volume of Air Near 40°C
Temperature of gas: 40
COMPLETE
Height of the column of gas: 6.7
cm
Volume of gas (V =)
Temperature of gas: 303K
help me find out how to get the volume !!! pleaseeee
The volume using the cylinder formula : V=πr²h
Further explanationCharles's Law
When the gas pressure is kept constant, the gas volume is proportional to the temperature
[tex]\tt \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}[/tex]
This experiment is an illustration of Charles's law, to determine the relationship between temperature and gas volume
If a certain amount of gas is heated, the volume will increase
So in this experiment, the temperature was changed as an independent variable and tube volume as a fixed variable
Because the tube is cylindrical, to find the volume using the cylinder formula
[tex]\tt V=\pi.r^2.h[/tex]
Meanwhile, to find the radius, you can use a caliper to measure the diameter of the tube and the result will be divided by 2
Answer:
1. Temp of gas 40C, Height of the column of gas 6.7
2. Temp of gas 313K, Volume of gas 0.84
Explanation:
Just answered on Edge
What is a reflex? I am in k12 so I need the k12 answer please hurry VERY URGENT will give brainlist to first to answer.
Answer:
A reflex is an involuntary, or automatic, action that your body does in response to something — without you even having to think about it. You don't decide to kick your leg, it just kicks. There are many types of reflexes and every healthy person has them. In fact, we're born with most of them
Explanation:
PLEASE MARK ME AS BRAINLIEST
Answer: An action that is performed.
Explanation: Like a body movement that is fast or slow!
The bond order is equal to the number of the bonding pairs of electrons in an
ionic bond.
OA. True
OB. False
Answer:
False
Explanation:
Just trust up I just did it
what is the reaction type of 3ZnS+ 2AlP = 1Zn3P2 + 1Al2S3 ?
Answer: double displacement
Explanation:
A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.
The balanced chemical equation is:
[tex]3ZnS+2AlP\rightarrow Zn_3P_2+Al_2S_3[/tex]
Thus as ions get exchanged , it is double displacement reaction.
Sodium atom with electronic configuration 2,8,1 achieves stable electronic configuration by losing one electron thereby achieving stable electronic configuration of the nearest Noble gas
(argon/ neon/ helium).
Matter with indefinite shape and volume"
1. Galaxy
2. Gravity
3. Solar System
4. Dust
5. Gas
Pick one for the correct answer following.