Answer:
B. A compound
Explanation:
An ion is defined as a charged particle, so it's not going to be that. Ions can be positively or negatively charged.
Electrons are tiny particles, smaller than an atom, that revolve around the nucleus. They have a negative charge. So they are not neutral either
Protons are also a part of atoms, like electrons are. An atom is neutral overall. This is because protons have a positive charge that balances out the negative charge of electrons.
So, the only answer option we have left is for a compound. So, that's our answer!
Answer:
c. an electron
Explanation:
A neutral charge is the electrochemical occurrence where an atom has an equal number of electrons and protons. Such an atom is neither positively charged nor negatively charged because the protons and electrons balance each other out
Help me with this plz
Answer:
EVEN DOE IT TOO LATE, ITS B
Explanation:
Describing Rock Texture
Which type of element Is not likely to react chemically with other elements to form a compound?
Answer:noble gases
Explanation:
how do you use an enchantment table in mine-craft. Please actually answer.
Answer:
You place an enchantment ta ke then you place a weapon or armor and press enchant. I hope this helps
Explanation:
Answer:
Depends on what you need to enchant
Explanation:
You can enchant any tools or armor if you put lapis in the box with a symbol and you have enough exp which will show up next to the enchantment you can enchant those and you can also enchant any normal books that way
convert 5.3 g water to mL water
Answer:
5.3 mL
Explanation:
1 g = 1 mL
5.3 g
= 5.3 x 1
= 5.3 mL
Ryan just joined the track team. He runs the 40 yard dash in 6.4 seconds. Explain three human body systems that work together to help Ryan run.
Answer:
Respiratory because you use a lot of cellular respiration to bring oxygen into the body.
Nervous because signals are sent from our brain to our muscles.
Circulatory to help with breathing and movement of blood and oxygen
Explanation:
Hope this helps!
3. What is the picture displayed? *
1 point
a.atom
b.molecule
c.element
d.compound
molecule (hope this helps :))
In a living organism, the organic material contains 0.22 Bq of 14C per gram of carbon. A sample of charcoal from a campfire contains 0.055 Bq of 14C per gram of carbon. How long ago was this campfire in use? (14C half-life is 5730 yr)
Answer:
6
Explanation:
The age of the charcoal sample in the campfire in use is equal to the time taken for the decay of 0.22 of C-14 to 0.055 Bq. Hence its age is 11552.45 years.
What is radioactive decay?Unstable radioactive isotopes of atoms undergo nuclear decay by the emission of charged particles such alpha or beta particles. Radioactive decay is a first order reaction. Thus, the decay constant is written as:
k = 1/t ln (W0 / Wt)
where W0 be the initial weight and Wt be the weight after time t.
The decay constant is related to the half life time of the sample by the expression:
k = 0.693 / t1/2.
Given that t1/2 of C-14 = 5730 years.
Thus, k = 0.693 /5730 = 0.00012 yr⁻¹.
Now, we can calculate the time t using the first order equation.
t = 1/k ln ln (W0 / Wt)
= [ ln (0.22 Bq/ 0.055 Bq) ] / 0.00012 yr⁻¹
= 11552.4 years.
Therefore, the age of the sample of charcoal is 11552.4 years.
To find more on radioactive decay, refer here:
http://brainly.com/question/1770619
#SPJ2
Calculate the mass of 3.4 x10^16 atoms of aluminum
Answer:
1.5232 × 10^-6 grams
Explanation:
What is an engineer?
a person trained to use technology and science to solve problems
b. a person who manufactures or produces a product
с. a person who markets and advertises a product
d all of the above
Hello there
i am looking for some quick help on this question thank you.
Liquid B has a mass of 75 g and a volume of 25 ml. What is liquid B's density?
1: .33 g/ml
2: 3 g/ml
3: 75 g
4: 25 ml
i will give brainliest if able to.
if density = m(mass) / v(volume) then the answer would be 3
A scientist observed the number of deer that came to drink at a local pond on five different days. The table above shows the data that she collected on those days.
Which of the following is supported by evidence seen in the data?
A.
The most important observations were made on May 1.
B.
More deer came to drink on days that were warmer.
C.
Observations from summer and fall months would have been more useful.
D.
More deer came to drink on days that were cooler.
Answer:
B.
More deer came to drink on days that were warmer.
A measure of how much substance is packed into a space
A) Density
B) Mass divided by volume
C) Water
D) Element
Answer:
a
Explanation:
Answer:
A
Explanation:
Density is the amount of space that atoms are compacted in a substance.Apr 25, 2017
https://phet.colorado.edu/sims/html/collision-lab/latest/collision-lab_all.html
Answer:
its not pulling up ? ;(
Explanation:
Which of the following would have more inertia than a car:
A)a person
B)airplane
C)skateboard
D)bicycle
PLEASE HELP
How many grams are there in 7.4x10^23 atoms of AL
Answer:
24 grams of FeF3
Explanation:
3. A light bulb containing argon gas is switched on,
and after 30 minutes its temperature is 418 K
What Celsius temperature is equal to 418 K?
Answer:
The assumption is quite reasonable.........
A lightbulb contains Ar gas at a temperature of 295K and at a pressure of 75kPa. The light bulb is switched on, and after 30 minutes its temperature is 418 K. What is a numerical setup for calculating the pressure of the gas inside the light bulb at 418K?
Explanation:
P
1
T
1
=
P
2
T
2
given constant
n
, and constant
V
, conditions that certainly obtain with a fixed volume light bulb.
And so
P
2
=
P
1
T
1
×
T
2
=
75
⋅
k
P
a
295
⋅
K
×
418
⋅
K
≅
100
⋅
k
P
a
.
Had the light bulb been sealed at normal pressure during its manufacture, what do you think might occur when it is operated?
how many significant figures are in 5.76 e 15
Answer: 3 significant figures
Explanation: because in scientific notation only the before and after decimal number are considered but in standard form all numbers including exponents are all significant figures
Answer:
3 significant figures
Explanation:
0's are not significant.
I hope it helps you!
[tex]GraceRosalia[/tex]
If 8.0 g of sulfur dioxide came in contact with a cloud containing 2.2 g of oxygen, indicate the
Limiting Reactant and calculate the theoretical yield (in grams) of sulfur trioxide produced.
Answer:
Limiting reactant= SO₂, Theoretical yield = 9.6g SO₃
Explanation:
The first step is is to find the limiting reactant; you do this using stoichiometry.
The reactant that produces the smallest amount of sulfur trioxide SO₃, is the limiting reactant.
In this problem, SO₂ is the limiting reactant.
Now to find the theoretical yield we will use the smallest value of SO₃.
I have uploaded a picture to better illustrate the problem and hope it helps.
What is the specific heat of a diamond if 4.5 J of heat is required to heat a 0.72 g piece of diamond
from 10°C to 22.3°C?
Answer:
0.51 J/g°C
Explanation:
An image of Earth's layer is above.
Which layer is the most dense?
layer A
layer B
layer C
layer D
Answer:
d
Explanation:
il answer in comments if you brainly me
Which location is Georgia experiencing fall in the diagram above?
Location A
Location B
Location B
Location D
Answer:
Location A
Explanation:
Answer:
location d
Explanation:
Can somebody please help me do the last part of the paper with the help of the information on top
Answer:
i dont know the answer of this question... im sorry
Scientists believe the evidence to support the Big Bang Theory is that the Universe is________
Shrinking
Still expanding
Answer:
The Universe will continue to expand :)
Explanation:
Dark matter reverses the effect of gravity in some cases, and the Doppler effect also supports this claim, in which it states that the later the star has formed, the farther away it will be from the center/origin point of our universe.
Hope this helps! Mark me brainliest :)
What ideas do you have about why these ions are so important for life?
Answer:
i dont get it
Explanation:
im small brain and only in 5th grade
Given the reaction below, how many grams of Li3N can be formed from 6.07 g of Li? Assume an excess of nitrogen.
6 Li(s) + N2(g) → 2 Li3N(s)
Answer:
About 10.2 g Li₃N.
Explanation:
We are given the reaction:
[tex]\displaystyle \text{6 Li(s) + N$_2$(g) }\longrightarrow \text{2 Li$_3$N(s)}[/tex]
And we want to determine the amount of Li₃N that can be formed from 6.07 g of Li and an excess of nitrogen.
To convert from g Li to g Li₃N, we can: (1) convert from g Li to mol Li, (2) mol Li to mol Li₃N, and (3) mol Li₃N to g Li₃N.
The molecular weight of Li is 6.94 g/mol. From the equation, six moles of Li yields two moles of Li₃N. And the molecular weight of Li₃N is 34.83 g/mol as shown below.Molecular weight of Li₃N:
[tex]\displaystyle \begin{aligned}\text{MW}_\text{Li$_3$N} & = (3 (6.94) + 14.01) \text{ g/mol} \\ \\ & =34.83\text{ g/mol} \end{aligned}[/tex]
This yields three ratios:
[tex]\displaystyle \frac{1 \text{ mol Li}}{6.94 \text{ g Li}}, \frac{2 \text{ mol Li$_3$N}}{6 \text{ mol Li}}, \text{ and } \frac{34.83 \text{ g Li$_3$N}}{1 \text{ mol Li$_3$N}}[/tex]
From the initial value, multiply:
[tex]\displaystyle 6.07 \text{ g Li} \cdot \frac{ 1 \text{ mol Li}}{6.94 \text{ g Li}} \cdot \frac{2 \text{ mol Li$_3$N}}{6 \text{ mol Li}} \cdot \frac{34.83 \text{ g Li$_3$N}}{1 \text{ mol Li$_3$N}} = 10.2\text{ g Li$_3$N}[/tex]
In conclusion, 10.2 g of Li₃N is formed from 6.07 g of Li and an excess of nitrogen.
Why water can be unsafe in a pool?
Answer:People can drown or call or slip in
Explanation:
2567 milliliters to liters
Answer:
2.567
Explanation:
To change milliliters into liters you divide by 1000
So when you divide 2567 by 1000 you get 2.567
Explain how changing the amount of greenhouse gases in the atmosphere affects the flow of heat out of Earth's atmosphere.
Explanation:
The added greenhouse gases absorb the heat. They then radiate this heat. Some of the heat will head away from the Earth, some of it will be absorbed by another greenhouse gas molecule, and some of it will wind up back at the planet's surface again. With more greenhouse gases, heat will stick around, warming the planet.
Which statement is true concerning visible light and the electromagnetic spectrum?
A.
Visible light is a large portion of the electromagnetic spectrum.
B.
Visible light is a small portion of the electromagnetic spectrum.
C.
All electromagnetic radiation is considered to be visible.
Answer:
The true statement concerning visible light and electromagnetic radiation is considered to be - d. Visible light is a small portion of the electromagnetic spectrum.
The electromagnetic spectrum is the range of frequencies of electromagnetic waves or radiations. This spectrum also gives an idea about the wavelengths of electromagnetic radiations. The part of the spectrum on their higher to lower energy or frequency range from Hz to Hz are:
gamma rays
X-rays
ultraviolet radiation
visible light
infrared radiation
radio waves.
The visible light is the very small part of the electromagnetic spectrum that ranges from the to, Visible light is the light that the human eye can see.
Thus, the correct answer is- option d.
Learn more about visible light:
Explanation:
i did this