Answer:
B. Type of music.
Explanation:
"how the type of music played in a room can affect plant growth."
The independent variable is the variable that is changed for the purpose of the experiment. The type of music is the independent variable here.
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:
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
If I have 20g of Sodium, how many moles of Sodium Oxide (Na2O) can be made?
What has mass?
A. Energy
B. Heat
C. Light
D. Matter
Answer:
matter
Explanation:
Answer:
matter is your answer
hope this helped
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?
71. Chloroform is a liquid once used for anesthetic. What is the volume of 5.0 g of chloroform. The density of chloroform is 1.49 g/mL.
Answer:
Volume, V = 3.35 mL
Explanation:
Given that,
The density of chloroform is 1.49 g/mL
We need to find the volume of 5.0 g of chloroform. Let V is its volume.
Density is equal to mass per unit volume.
[tex]d=\dfrac{m}{V}\\\\V=\dfrac{m}{d}\\\\V=\dfrac{5\ g}{1.49\ g/mL}\\\\V=3.35\ mL[/tex]
So, the volume of 5 g of chloroform is 3.35 mL.
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
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:
what is Alkanoic acid
Answer:
an aliphatic acid (such as hexanoic acid) regarded as derived from an alkane and containing the same number of carbon atoms as the alkane.
Explanation:
Answer:
Acetic acid, systematically named ethanoic acid, is a colourless liquid organic compound with the chemical formula CH₃COOH. When undiluted, it is sometimes called glacial acetic acid. Vinegar is no less than 4% acetic acid by volume, making acetic acid the main component of vinegar apart from water.
You are making sweet tea. You add 56g of sugar into 78g if tea. What is the mass percent of sugar ?
Answer:
Approximately 72%
Explanation:
[tex]Sugar = 56g\\Tea's \:mass = 78g\\\\Sugar\:mass\:percentage = \\\frac{56}{78} \times 100\\\\\frac{5600}{78} \\\\=71.79\\Approximately \:72\%[/tex]
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
How many grams of ethyl alcohol (C2H5OH) are in a 1500 ml solution which is 1.54M?
Answer:
The answer is 1.54molar mass.
What is the flow of science ?
1. What is one example of a chemical reaction?
Answer:
AN EXPLOSION
Explanation:
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!
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:
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
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!
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.
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
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
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
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:
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.
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:
what does H2CO3 mean on the periodic table
Answer:
Carbonic acid
Best of luck
examples of white bloodcell
Answer: White blood cells help the immune system and help fight infection and disease.
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).
a nickel atom (atomic symbol Ni) has an atomic number of 28 and has an atomic mass of 59. how many neutrons does it have ??
Answer: 31 neutrons
Explanation:
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: