Answer:
D = m/v
Explanation:
So m = 24g and v = 16mL. (I assume these are the units being used). Then, we get D = 24g/16mL which is 1.5 g/mL
Can yall help me i suck at this and rlly need help
Answer:
Fireworks is exothermic
Endothermic is Cookies
Explanation:
Exothermic reactions transfer energy to the surroundings and the temperature of the surroundings increases. Endothermic reactions take in energy and the temperature of the surroundings decreases.
Hope this helps
please help me!! thank you so much!!
Answer:
13.75
Explanation:
gets halved every 8 days so halved twice
how is iodine 131 different from a normal atom of iodine?
Answer:
Iodine 131 is an unstable/radioactive isotope of iodine and a normal atom of iodine is stable.
Explanation:
True or false igneous rocks can only turn into metamorphic
Answer:
this is false igneous rocks can turn into either sedimentary rocks and they can be metamorphic
Explanation:
i hope this helps your welcome :)
Answer:
False
Explanation:
Igneous rocks can turn into sedimentary rocks as well as metamorphic.
PLS HELP!!! ASAP!! 10 POINTS!!
Which of the subatomic particles are most responsible for the identity of an element?
neutrons
electrons
atoms
protons
Protons
Protons are the subatomic particle that determines the identity of an element.
Answer:
Explanation:Protons and neutrons are located in the nucleus of an atom and determine the mass of an atom. Protons have a positive electrical charge and electrons have a negative electrical charge. Atoms that have the same number of protons and electrons do not have an electrical charge.
What element have 5 energy levels of electrons. Which as an atom the last electron is found in the 5p^3
Answer:
I hope this answer is correct
Explanation:
Element having electronic configuration 1s
2
,2s
2
,2p
6
,3s
2
,3p
6
,3d
10
,4s
2
,4p
6
,4d
10
,5s
2
,5p
3
Groups of specialized cells working together are called
Groups of specialized cells working together are called tissue
A brick delivery truck parks on a roadside scale that measures 4 m by 6 m. If the brick truck weighs 60 000 N, what pressure does the scale put on the spring below?
Explanation:
Area = Length × Breadth
A = 4 × 6
A = 24m square/ 24m sq.
Force = Pressure × Area
Force = 60,000 N/ 60,000 Newton
Pressure = Force/ Area
P = 60,000/24
P = 2500 Pa
please help timed !! due today rn!!what does thermal equilibrium mean
A substance with a pH of 3 has more ____________ions than ____________ions
Answer:
Hydrogen... Hydroxide
Explanation:
The number in pH is a logarithm, so when something has a higher pH by 1, it is 100 times more powerful.
Besides, the H in pH is Hydrogen.
In which cell will the molecules diffuse out A or B
Which is a change or signal in the environment that can make an organism
react? *
stimulus
O reaction
impulse
O
response
Answer:
I'm pretty sure its stimulus
PLZ HELP WILL MAKE U BRAINLIEST! what is acceleration???
Answer: Acceleration is when something accels.
Or, in simple terms, when the velocity changes rapidly to a very quick speed.
Hope this answer helps you!
Best of Regards!
Pleaseee help it’s timed!!
Answer:
voliiviloou
Explanation:
volaiviolu
Answer:
Rows
Explanation:
Which element would be the least similar to magnesium (Mg)?
A. Sr
B. Na
C. Be
D. Ca
Answer:
B: NA
Explanation:
this is the apex answer
if there is a sample 50 grams of naoh how many grams are na
Answer:
Which number is IRRATIONAL? A) √12 B) √36 C) √64 D) √144
Explanation:
How many oxygen atoms are in the formula Tetrasulfur pentoxide?
a. 3
b. 4
c. 5
d. 2
What strategy should be done to provide quality education without discrimination?
Explanation:
The Committee has already adopted general comment No. ... Non-discrimination - education must be accessible to all, especially the most ... developmental strategy for its school system.as poverty and discrimination and to provide education of sufficient quality, in a manner that ensures children can benefit from it.
Which molecule is the most polarizable?
N₂
O2
CH4
CO2
Answer:
CO2 I was wrong about methane
Question 5 (4 points)
One type of dipole-dipole force found in water is
A. ion-ion attraction
B. hydrogen bonds
C. dipole-ion bonds
D. molecular bonds
Answer:
B. Hydrogen bonds.
Explanation:
The dipole dipole force that is found in water is hydrogen bonds.
A substance is at a temperature and pressure that places it directly on the liquid-vapor equilibrium line of its phase diagram. Which phase will it become if the temperature increases while the pressure remains constant?
What are some real world examples of physical change and chemical change ?
Answer:
Examples of chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding. Often, physical changes can be undone, if energy is input.
Explanation:
define empirical formula and molecular formula with example of each
write the addition reaction of butane and bromine
Which student is responses are correct?
Answer:
Neutrons: Electron cloud
Explanation:
Explain why rain water is not pure
Answer:
before it evaporated into the air, it was on the Earth...and it could have been contaminated/dirtied. There isn't a process during evaporation that cleans water...you have to purify it yourself.
Explanation:
Where are earthquakes most likely to occur? A. Where Earth’s tectonic plates are sliding past each other. B. Where magma cools slowly beneath Earth’s surface. C. Where Earth’s lithosphere is in constant, slow motion. D. Where Earth’s seafloor is spreading into deep ocean trenches.
Answer:
d
Explanation:
Answer:
A
Explanation:
When the tectonic plates slide across each other they cause a huge vibration making the area around Shake if its a big enough of vibration it can breach the surface causing a huge crack.
Which two parts are needed to make a neutral atom of nitrogen A. Electron clouds with a total of 14 electrons B. Electron cloud is a total of seven electrons C. A nucleus with seven protons and seven neutrons D. A nucleus with three protons and four neutrons
Answer:
B. Electron cloud is a total of seven electrons
C. A nucleus with seven protons and seven neutrons
Explanation:
An atom is consist of three subatomic particles: electron, proton, and neutron. Proton are positively charged particles and neutron have neutral charge, they both are present inside the nucleus in the center of the atom whereas electrons are negatively charged and surround the nucleus in a definite orbit.
Nitrogen is an element with 7 electrons in its outer orbit. As electrons are negatively charged so nitrogen atom will require 7 protons inside the nucleus to form a neutral atom of nitrogen. So, A neutral atom of nitrogen will consist of 7 electrons and 7 protons.
As, neutron has neutral charge so it will not affect the composition of neutral atom of nitrogen.
Hence, the correct options are:
"B. Electron cloud is a total of seven electrons
C. A nucleus with seven protons and seven neutrons ".
Answer:
B and C
Explanation:
Use “impact force” in a sentence.
Answer:
The impact force of a car hitting a building can traumatize someones body.
Explanation:
The layer of skin that forms the fingerprint is called the
Answer:
Explanation:
The fingerprints are produced from a layer in the skin called the papillary layer, which is a layer within the dermis layer of skin. It produces an extra thick layer to form the ridges of fingerprints.
Answer:
Dermis
Explanation:
The inner layer of skin is called the dermis. It is thicker and provides the protection and support that the skin provides the body. The two layers are separated by the basement membrane. Fingerprints are produced by the epidermis.