When the law of conservation of energy is applied to heat, it is known as the _____ law of thermodynamics. a) zeroth b) first c) second d) third
Answer:
b first
Explanation:
first law of thermodynamics: energy can neither be created or destroyed; however, when heat is added to a system, energy can be changed from one form to another.
Answer:
This is the first law of thermodynamics.
Explanation:
I need brainliest!!!!!!!!! you've never given me one
1000 mg = _______g
Please help!!!! This is a conversation unit
Answer:
1 gram
Explanation:
1000 mg is 1g. For example 2000 mg is 2g.
Intrusive igneous rocks are formed where? Question 5 options: Inside the earth's crust When the lava reaches water Outside the volcano Beside glaciers
Answer:
inside earths crust this is correct did the test enjoy :3
Explanation:
earths crust
Answer:
inside the earths crust
Explanation:
An unknown solid is placed on a scale and has a mass of 2.5 grams. The solid then displaces 35 mL of water in a graduated cylinder. Find the unknown solid’s density.
Answer:
The unknown solid’s density is 0.071 [tex]\frac{g}{mL}[/tex]
Explanation:
Density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space. In other words, density is a quantity that allows us to measure the amount of mass in a certain volume of a substance. Then, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:
[tex]density=\frac{mass}{volume}[/tex]
From this expression it can be deduced that density is inversely proportional to volume: the smaller the volume occupied by a given mass, the higher the density.
Archimedes' principle states that every body immersed in a fluid experiences a vertical and upward thrust equal to the weight of fluid dislodged. In other words, this principle says that the volume of the object is equal to the volume of the water displaced or displaced. So:
mass= 2.5 gramsvolume=35 mLReplacing in the definition of density:
[tex]density=\frac{2.5 g}{35 mL}[/tex]
you get:
[tex]density=0.071\frac{g}{mL}\[/tex]
The unknown solid’s density is 0.071 [tex]\frac{g}{mL}[/tex]
Answer: The answer would be 0.071 g/cm^3
Explanation:
How do you change a solid into a liquid?
Answer:
you melt it
Explanation:
You change a solid to a liquid by melting it.
for example ice becomes a liquid by melting.
Answer:
Heat is probably the easiest energy you can use to change your physical state. The atoms in a liquid have more energy than the atoms in a solid. There is a special temperature for every substance called the melting point. When a solid reaches the temperature of its melting point, it can become a liquid.
Explanation:
A balloon is filled with 0.75 L of Helium gas at 35 °C. If the temperature is increased to 113 °C, what thewill new volume be?
Answer: 0.9398 Liters
Explanation:
Charles' Law
V1/ T1 = V2/T2
0.75/35 = ?/113
0.75/35 = 0.9398/113
An object has a mass of 8.5 g and a volume of 17 mL. What is the density of the object?
Answer:
0.5 g/ml
Explanation:
becace the density of an object is its mass divided by its volume
0,5 g / ml
Explicação:
porque a densidade de um objeto é a sua massa dividida pelo seu volume
How many grams of ethyl alcohol (C2H5OH) are in a 1500 ml solution which is 1.54M?
Answer:
The answer is 1.54molar mass.
An example of a physical property of an element is the element's ability to
Answer:
dissolve
Explanation:
When it dissolves , no chemicals are formed and it is considered as a physical property.
Answer:
what is it ???? I need help to
Four marbles are made of different metals. Each marble has the same mass, but a different volume. The density of each metal is given in the table.
225 mm=_____hm
this is a 2-step problem
To find how many hectometers this is, we can divide the amount by 100,000.
225 / 100000 = 0.00225
Therefore, 225mm = 0.00225hm
Best of Luck!
What is the volume of 88.2 g of silver metal (density = 10.50 g/cm^3)
Answer:
The answer is
8.4 mLExplanation:
The volume of a substance when given the density and mass can be found by using the formula
[tex]volume = \frac{mass}{density} [/tex]
From the question
mass = 88.2 g
density = 10.5 g/cm³
The volume is
[tex]volume = \frac{88.2}{10.5} [/tex]
We have the final answer as
8.4 mLHope this helps you
Answer:
8.4 km
Explanation:
Which type of scientist
studies everything
from the tiniest
organisms to human
beings?
Answer:
Biology
Explanation:
Biology is the study of all living beings. From the smallest algae or micro organism to the biggest living being is all covered under biology. How micro organisms live, how do they function and how they affect other living beings is studied in biology.
Answer:
Micro bioligist
Explanation: hope this helps
If the density of a substance is d=2.1g/cm^3 what is the mass of 20.0mL of this substance
Answer:
Explanation:
density = mass (g)/ volume (cm3)
2.1 = mass / 20 cm3
mass = 42 g
be attention that each 1 ml =1cm3
A 5.00 g piece of metal is heated to 100.0oC, then placed in a beaker containing 20.0 g of water at 10.0oC. The temperature of the water rises to 15.0oC. Calculate the specific heat of the metal. What is the metal?
1. What is one example of a chemical reaction?
Answer:
AN EXPLOSION
Explanation:
What is a joule?
O A. A unit of measurement for mass
O B. A unit of measurement for power
C. A unit of measurement for energy
O D. A unit of measurement for gravity
Answer:
C. A unit of measurement for energy
Explanation:
Joule is the SI unit of
EnergyWorkAnd HeatUnit of measurement of mass: Kilogram(Kg)
Unit of measurement of Power: Watt(W)
Unit of measurement of Gravity: m/s^2
Hope this helps ;) ❤❤❤
Answer:
C. A unit of measurement for energy
Explanation:
a p e x 2021!
A color-coded periodic table. Which elements are metals? Check all that apply. rhenium (Re) boron (B) lithium (Li) krypton (Kr) phosphorus (P) mercury (Hg)
Answer:
re) li) hg)
Explanation:
In an element’s square on the periodic table, the number with the greatest numerical value represents
Answer:
neutrons
Explanation:
I just did the same question
examples of white bloodcell
Answer: White blood cells help the immune system and help fight infection and disease.
To the Mayans, what was the utmost important thing to do?
hello my name is bob free give me the free give me th efree points
Explanation:
Give one example each of leaf tendril and stems tendril
Answer:
Tendrils can be formed from modified leaves, leaf tips, leaflets, or stipules. ... There is always a scale leaf at the point where the tendril branches. There are 4 types of Stem tendrils – Axillary (Passiflora), Extra-axillary (Cucurbita), Apical bud tendrils (Grapevine), and Inflorescence tendrils (Cardiospermum).
SEVEN reasons why Elijah faced danger and hostlity as a Prophet of God
(7mks).
Answer:
I know one reason is because he claimed God speaks to him. (In which was was correct)
Convert 1.25 ug into hg
The answer is 1.25e-8.
What is the flow of science ?
HURRY PLEASE I'M TIMED The diagram shows the sun’s interior. Convection currents are present in the convection zone. Which best describes how fluids change as they travel through different portions of the convection currents? They change to solids at the outer portion of the convection currents. They change to solids at the inner portion of the convection currents. They become more dense at the outer portion of the convection currents. They become more dense at the inner portion of the convection currents.
Answer:
C- They become more dense at the outer portion of the convection currents.
Explanation:
i did it on edge! ; )
Answer:
C. They become more dense at the outer portion of the convection currents.
Explanation:
8.
What behavior do all liquid
or plastic solids near a
heat source exhibit?
L
Answer:
Explanation:
One of the properties of a liquid is that, it's particles move freely (not tightly packed) hence the reason for it's free flowing (no definite shape) when shaken in a container, unlike a solid whose particles are tightly packed with restricted/no movement and hence the reason for it's compactness and it's definite shape.
When a plastic solid (whose particle is tightly packed and have a restricted movement/no movement) is placed near a heat source, it's particles gains energy in the process and starts to move (though slightly free) and become less tightly packed hence the reason it is observed that plastic solids near a heat source melts.
From the above, it can be deduced that a liquid and a plastic solid near a heat source have there particles move freely (and not tightly packed) hence making the two substances flow freely with no definite shape.
If I have 20g of Sodium, how many moles of Sodium Oxide (Na2O) can be made?
Answer ASAP!!!
Can sperm clear ance, if so can you freeze it and save it for later? Lol I want too see if it works, I heard it does but no sure.
Answer:
Yes, you heard right!" she wrote for the news outlet. "Using your partner's sperm as a mask is full of a compound called spermine, which is an antioxidant which can help reduce wrinkles, smooth the skin, prevent acne or spots and give you overall healthy-looking skin.
And yes they do have st home sperm freezing kits you can order
good luck
Beryllium's atomic mass is 9, and its atomic number is 4. How many protons are found in a beryllium atom?
Answer:
4 protons
Explanation:
The number of protons in an atom is equal to the atomic number. In this case, we have beryllium whose atomic number is 4, so it has 4 protons.