Answer:
-3
Explanation:
The charge of the ion is determined by the number of protons and the number of electrons.
Protons are a positive + charge.
Electrons are a negative - charge.
We have 7 protons and 10 electrons.
+7 charge
-10 charge
-10 + 7 = -3 charge
Which is a common psychological side effect of dementia?
A.optimism
B. loss of brain functionality
C. emotional distress
D.loss of coordination
Answer:
D is your Answer just did the quiz
( date on bottom when I did the quiz)
Explanation:
3 - 24 - 2021
What is the buoyancy force on a 15 g object which displaces 60 mL of water? (Remember to change mL of water to grams and grams to kg)
25 N
0.59 N
900 N
0.25 N
Answer:
0.25
Explanation:
Answer:
.59
Explanation:
If Beryllium has a mass number of 7 and atomic number of 4, how many protons does it have?
Answer:
4
Explanation:
Answer:
4
Explanation:
So the atomic number is still the proton number and it is always smaller than the atomic mass so the proton number is 4.
HOPE IT HELPED
how many of protien consumed by humans around the world is fish?
a) 5 percent
b)20percent
c)4p percent
d)50 percent
The answer would be 20% (B)
Write the chemical formula for Calcium Dichromate
Ca Cr2O7^2 -
2 2
2 2
1 1
=CaCr2O7^2 -
Is this right? Or does the second part have a bracket
Answer:
Its right
Explanation:
The chemical formula of calcium dichromate is CaCr207
PLEASE HELP ME FAST THANKYOU! :)
What is a substance said to be if it evaporates easily?
A.crystallized
B.condensing
C.changing pigmentation
D.volatile
Write two uses of sublimation process?
Answer:
Explanation:
Practical Applications of Sublimation
Sublimation and erosion cause ablation, a process that wears down glaciers. Sublimation of iodine may be used to reveal latent fingerprints on paper. Sublimation is used to purify compounds. ... Because dry ice sublimates so readily, the compound is used to produce fog effects.
Someone help me with this plz due in 10 minutes ILl give brainly!!!
Answer:
which one do u want help with?
Explanation:
P2O5 is a covalent compound used to purify sugar. How many atoms of phosphorus does this compound have? How many atoms of oxygen does this compound have?
Lol please help :')
Answer:Phosphorus: 2
Oxygen:5
Explanation:
Just did it
Answer:
Phosphorus: 2
Oxygen:5
Explanation:
Pleaseeee help meeeee
Answer:You have it right the answer is c!
Explanation:
Answer:
c ........................!
which of the following CANNOT be classified as a substance? A. table salt B. air C. nitrogen D. gold
Answer:
C. Nitrogen
Explanation:
All of the other options are mixtures making them substances, but nitrogen is an element. (while gold is an element, there are often times that gold is mixed with other elements, creating a substance)
Help PLEASE HELP PLEASE
Answer:
b. k+
Explanation:
Do all systems have Inputs and Outputs? I’m sorry I’m really dumb
first proposed that Earth and the other planets orbit the sun.
OA.) Hubble
OB.) Galileo
OC.) Copernicus
OD.) Kepler
ANSWER QUICK PLEASEE
How are hypotheses different from theories?
Answer:
Explanation:
This is the Difference Between a Hypothesis and a Theory. In scientific reasoning, a hypothesis is an assumption made before any research has been completed for the sake of testing. A theory on the other hand is a principle set to explain phenomena already supported by data.
In the compound nickel(II) sulfide, there is always 58.7 g of nickel for every 32.1 g of sulfur. What is the simplified ratio of
nickel to sulfur?
answer: 1.83 to 1
or at least that’s what i got
The sphere was dropped into water in a graduated cylinder as shown below
Answer:65 ML
Explanation:
How many grams are there in 1.18 X 1026 atoms of iridium?
Which is not a chemical element needed to build sugars?
Answer:
Nitrogen
Explanation:
Plz help! The best answer will be marked as brainliest!
Make a funny sentence of alloys for Magnesium
Here is an example for Mercury, it HAS to for Magnesium
“I love to travel but I do corrode aluminum so we won’t be flying off on adventures in airplanes planes anytime soon”
Answer:I love to travel however I do erode aluminum so we won't be taking off on undertakings in planes at any point in the near future
Explanation:
What is the wavelength, in meters, of yellow light with a frequency of 5.10 x 1014 Hz?
Answer:
5.88 × 10⁻⁷ m
Explanation:
Speed of Light = Wavelength times Frequency
c = λν
Step 1: Define
c = 3.0 × 10⁸ m/s
ν = 5.10 × 10¹⁴ Hz
λ = unknown
Step 2: Solve for λ
3.0 × 10⁸ m/s = 5.10 × 10¹⁴ Hz · λ
λ = 5.88235 × 10⁻⁷ m
Step 3: Simplify
We are given 3 sig figs.
5.88235 × 10⁻⁷ m ≈ 5.88 × 10⁻⁷ m
how many significant figures in 1. 19.99 2. 140486 3. 0.0609 3. 5.08 ?
1. 4 significant numbers
2. 6 significant numbers
3. 3 significant numbers
4. 3 significant numbers
Further ExplanationSignificant numbers are numbers obtained from the measurement results of exact numbers and the last number estimated
1. 19.99
all non-zero numbers are significant numbers , so there are 4 significant numbers
2. 140486
a zero which is located between two non-zero numbers including a significant number , so there are 6 significant numbers
3. 0.0609
a zero in front of a decimal point is not a significant number, so there are 3 significant numbers (6,0 and 9)
4. 5.08
Any zeros between two non-zero numbers are significant, so there are 3 significant numbers(5,0 and 8)
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An atom, which is an isotope of an element, is characterized by -
O having more electrons in its nucleus.
O having more neutrons in its nucleus.
having fewer protons in its nucleus.
having more protons in its nucleus.
Answer:
gime fre points
Explanation:
fre points for me!
Help me. I need help on these questions and i don’t understand
PLS HELP:)Which situation will cause a stationary object to start moving?
A. A net force greater than 0
B. Balanced forces
C. A net force equal to 0
D. Two forces that cancel each other out
to get dry ice to the triple point
PLEASE HELP !!
i give brainliest help pls
The answer is a compound.
Hope this helps! :)
Describe the motion of molecules in each of the three states of matter.
Answer:
EASSSSSYYY give me a harder question smh
if you want you can give me Brainliest answer lol
Explanation:
A solid’s particles are packed closely together. The forces between the particles are strong enough that the particles cannot move freely.
A liquid is a fluid that conforms to the shape of its container but that retains a nearly constant volume independent of pressure. The volume is definite (does not change) if the temperature and pressure are constant.
Gas molecules have either very weak bonds or no bonds at all, so they can move freely and quickly. Because of this, not only will a gas conform to the shape of its container, it will also expand to completely fill the container.
if you were conducting an experiment to see whether eating candy makes gerbils fat, what variable might you change?
A:The number of gerbils you feed incorrect answer
B:The amount of candy the gerbils eat incorrect answer
C:The amount of water the gerbils drink incorrect answer
D:The body mass of the gerbils incorrect answer
Answer:
B
Explanation:
the less candy will be the smallest gerbil and the most candy will be the fatest
Answer:
A) The number of gerbils you feed
Explanation:
If you wanted to test whether eating candy made gerbils fat you would need to fluctuate the amount of candy each group receives to observe whether there was any differnce in weight
Which of the following can be inferred from the diagram above that shows the dependence of potential Energy on the Internuclear distance between two atoms?
A - The atoms form a bond with a bond length of 25 pm
B - The atoms form a bond with a bond length of 75 pm
с - The net force between the atoms is attractive at 25 pm
D - The net force between the atoms is attractive at 75 pm
Answer:
B - The atoms form a bond with a bond length of 75 pm
From the potential energy diagram of shown, we can infer that the atoms form a bond with a bond length of 75 pm.
When atoms are far away from each other, there exists no interaction whatsoever between the atoms.
However, as the atoms draw closer to each other, the potential energy diagram begins to shift towards an energy minima as we can see from the potential energy diagram.
As the system continues to tend towards this minima, the distance between the atoms decreases. The distance at which the two atoms have the lowest energy is called the bond length.
For this system, such a bond length occurs at 75pm as we can see from the diagram.
Learn more: https://brainly.com/question/24275269
