helllllllpppppp pleeeaaassseee

Helllllllpppppp Pleeeaaassseee

Answers

Answer 1

Answer:

The density of ice ice is lesser than that of water that's why ice floats on water. So hence, the answer is C

Answer 2

Answer:

Less than that of water

Explanation:

This explains why icebergs float on water. If it was greater than that of water icebergs would sink.

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Related Questions

a patient is prescribed tigan capsules for vomiting. The drug is available in the form of 300.0 mg tigan/capsules ,and is administered in 4.0 doses/day of 1 capsule/dose. How many g Tigan does the patient recieve in 2.0 days?

Answers

The patient recieves 2.4 g Tigan in 2 days

Further explanation

In finding the conversion units, we can multiply and eliminate the same units so that we can get the desired quantity or unit.

In this case, it is expected that the number of Tigan is known in 2 days, so we just need to multiply the numbers that are known

[tex]\tt =300\dfrac{mg}{capsules}\times \dfrac{1~capsules}{dose}\times 4.0\dfrac{doses}{day}\times 2.0~days\\\\=300\times 1\times 4.0\times 2.0~mg=2400~mg=\boxed{\bold{2.4~g}}[/tex]

2a. Density is the relationship between mass and volume. Density has
many uses but is most commonly used to help determine the identity of
an unknown substance. Specifically for copper the proportion is
approximately 8.96 grams for every mL of copper. Approximately how
much volume (mL) would 29 grams of copper have? While it is helpful for
you to show all work, you MUST provide rationale for your thinking and
explanation for each of your steps.

Answers

The volume of copper : 3.24 ml

Further explanation

Density is a quantity derived from the mass and volume

Density is the ratio of mass per unit volume

With the same mass, the volume of objects that have a high density will be smaller than objects with a smaller type of mass

The unit of density can be expressed in g/cm³ or kg/m³

Density formula:

[tex]\large{\boxed {\bold {\rho~=~ \frac {m} {V}}}}[/tex]

ρ = density , g/cm³ or kg/m³

m = mass , g or kg

v = volume , cm³  or m³

A common example is the water density of 1 gr / cm³

The density of copper : 8.96 gr/ml

mass of copper : 29 g

then the volume :

[tex]\tt V=\dfrac{m}{\rho}\\\\V=\dfrac{29~g}{8.96~g/ml}\\\\V=\boxed{\bold{3.24~ml~or~3.24~cm^3}}[/tex]

Definition of periodic trends

Answers

Answer:

.Periodic trends are specific patterns in the properties of chemical elements that are revealed in the periodic table of elements. Major periodic trends include electronegativity, ionization energy, electron affinity, atomic radii, ionic radius, metallic character, and chemical reactivity.

~~20 points~~ What is the mass number of an element which has 43 protons, 46 neutrons, and 43 electrons?


a. 132

b. 3

c. 86

d. 83706

e. 89

f. -46

g. there is not enough information given to correctly answer the question

Answers

Answer:

e.  89

Explanation:

The mass number is the number of protons and neutrons in an atom.  It doesn't include electrons.

43 + 46 = 89

Which is a compound?
A. smog
B. sea water
C. air
D. magnesium
E. salt

Answers

Answer:

The answer is D) Magnesium

Explanation:

Because smog is a mixture

sea water is a mixture

air is an element

And salt solvent

It can only be D

What two positions would the moon be when we have the lowest tidal range?

Answers

Answer:

Quarter and half moons

Explanation:

what is the scientific method?

A) the process of proving a theory
B) a way of analyzing data
C) a method of testing an idea
D) the steps required to form a hypothesis

Answers

Answer:

C- a method of testing an idea

A car travels 100 m while decelerating to 8 m/s in 5 s.

initial speed is 32

b) What was it's acceleration?

Answers

It’s answer a bc I took it already

look at the three solid blocks made of the same material and with the exact same dimensions which block has the greatest mass​

Answers

Answer:

where are the solid blocks?

Explanation:

1) Describe the characteristics of molecular compounds that affect their particular physical
properties. (Include melting/boiling points, strength of bonds, reactivity, and 3-dimensional
geometry.)

Answers


The types of intermolecular forces that occur in a substance will affect its physical properties, such as its phase, melting point and boiling point.

Significant figures are the digits within the number that help determine
accuracy.
о
True
о
False

Answers

Answer:false

Explanation:

Sodium and Chlorine are both elements,
so the only contain one type of atom.
Is this true or false?
True

Answers

Answer:

False

Explanation:

What are the characteristics of metals vs. non metals?

Answers

Answer:In the picture

Explanation: None

metal elements have:
-high electrical conductivity properties -they are malleable + ductile

nonmetal elements have:
-poor electrical + thermal conductivity
-they are not able to pass electricity or heat
-they also cannot pass metal elements

1.if I drove 40 miles west in 2 hours what is my velocity
2.find the time it takes for a bird that travels 15 miles per hour for 3 hours ​

Answers

1. v= 20 miles/hr

2. d = 45 miles

Further explanation

Velocity is a vector that has both magnitude and direction

Velocity is the ratio of distance per time

Can be formulated :

[tex]\tt v=\dfrac{d}{t}[/tex]

v , m/s

d , m

t, s

1. d = 40 miles

t = 2 hr

[tex]\tt v=\dfrac{40~miles}{2~hr}\\\\v=20~miles/hr[/tex]

2. maybe you meant the distance traveled

v = 15 miles/hr

t = 3 hr

[tex]\tt d=v\times t\\\\d=15\times 3\\\\d=45~miles[/tex]

Quick chem question!

I’ll mark BRAINLIEST!!!!! :)

Answers

What is the question

Look at the map of temperature versus latitude
globe. Why are the bands not straight
around
the
across!

Answers

Because temperature isn’t measured by location??

The bands not straight around since location is not a factor in measuring temperature. Temperature seems to be not the same as the power of a thermodynamic process.

What is temperature?

Temperature is a unit used to describe hotness or coldness. It may be stated in terms of any number of arbitrary scales and shows the direction in which heat energy would naturally flow, i.e., from a hotter body to a region of lower temperature (one at a lower temperature).

Temperature seems to be not the same as the power of a thermodynamic process; for instance, an iceberg has a significantly larger total heat energy than a match, despite the fact that a match is burning at a substantially higher temperature.  The bands not straight around since location is not a factor in measuring temperature.

Therefore,  the bands not straight around since location is not a factor in measuring temperature.

To know more about temperature, here:

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1 teaspoon is Benefiber is added to 1 1/2 cups of water. Which of the following correctly describes what is formed?
O A. The chemical reaction between water and Benefiber allows one substance to dissolve in the other.
B. Water and Benefiber combine to form a precipitate.
o C. Benefiber is the solute in the solution that is formed.
D. Water is the solution in the solvent that is formed.

Answers

Explanation:

(A) Manganese salts give a grey borax bead test in reducing flame.

(B) From a mixed precipitate of AgCl and AgI, ammonia solution dissolves only AgCl due to the formation of [Ag(NH

3

)

2

]Cl.

(C) Ferric ions give a prussian blue precipitate on adding potassium ferrocyanide solution (D). On boiling the solution having K

+

, Ca

2+

, and HCO

3

ions, we does not get a precipitate of K

2

Ca(CO

3

)

2

What term describes the smallest unit that can perform all of the functions necessary for life

Answers

Answer:

Cell

A cell is the smallest unit of a living thing. Cells are the basic building blocks of all organisms

How many grams of sodium chloride must be added to make 400 mL of a 0.600 M sodium chloride?​

Answers

Answer:

14.0 g

Explanation:

nnandff

The mass in grams of sodium chloride must be added to make 400 mL of a 0.600 M sodium chloride is 14 grams.

How do we calculate mass from moles?

Mass of any substance will be calculated by using their moles as:
n = W/M, where

W = required mass

M = molar mass

Also we know that, molarity of any solution is define as the number of moles of solute present in per liter of the solution.

M = n/V, where

M = molarity of NaCl = 0.600M

V = Volume of solution = 400mL = 0.4L

n = (0.6)(0.4) = 0.24moles

Now mass of NaCl will be calculated by using the first equation as:

W = (0.24mol)(58.44g/mol) = 14grams

Hence required mass of NaCl is 14 grams.

To know more about moles, visit the below link:

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What is the density of an object of an object having a mass of 6.0 grams and a volume of 35 cm3?

Answers

Answer:

0.17 ( 2 s.f.)

Explanation:

d=m/v

=6/35

=0.1714285

=0.17

Answer:

Hey bro

Explanation:

I don't like boys and the answer most definitely is 69

Microwave Miracle: Patrick believes that if fish eat microwaved food then they be able to swim through a maze faster. He decides to perform an experiment by placing fish food in a microwave for 20 seconds. He has the fish swim through a maze and records the time it takes for each one to make it to the end. He feeds the microwaved food to 10 fish (group A) and gives regular food to 10 others (group B). After 1 week, he has the fish swim through the maze again and records the times for each. Which fish are in the control group? * Group A Group B Microwaved Food Non-microwaved Food

Answers

Answer:

Group B

Explanation:

The fish in group B are those in the control group.

A control group during an experiment represents a group of the subject that is subjected to all experimental variables except the independent variable - the manipulate-able variable that is supplied by the experimenter which directly affects the dependent variable.

In this case, the independent variable is the type of food given to the two groups of fishes - microwaved or regular food while the dependent variable is the time it takes for the fishes to swim through the maze. Since the focus of the experiment is to see if microwaved food enhances the swimming speed of fishes, the group of fish that receives microwaved food would represent the treatment group while those that received regular food would be the control group.

Hence, group B represents the control group.

The circumference of the earth is 25,000 mi at the equator. What is the
circumference in km?

Answers

Answer:

40233.6

hope this helps

plz mark brainleist

The sun's energy influences climate in different ways. For example, the latitudes at the equator receive more intense energy from the sun and therefore have warmer temperatures. How does the sun's energy MOST DIRECTLY influence precipitation in an area?

Answers

Answer:

The Sun's energy is transferred as both light and heat energy, that raises the temperature of an area receiving the Sunlight. The increased temperature results in the evaporation of water from surfaces and water bodies, such that the mass of water vapor rises up into the atmosphere and condenses when it gets away from the ground heat to the cooler and higher altitudes

When there is a situation of low pressure, the wind blows into the low pressure, where, in the equator, comprises of high temperature air which could contain considerable amount of vapor from the neighboring water bodies, resulting in the eventual rise of very moist air, up into the atmosphere, that condenses at low temperature at the high altitudes, accumulate into larger masses of liquid water, and fall as rain

Explanation:

Cases of smallpox were very rare worldwide by 1980. Which most likely explains this? A. an increase in disease education B. a decrease in world travel C. an increase in number of vaccinations of young children D. a decrease in regulations on food preparation

Answers

Answer:

C.

Explanation:

The main reason for this decrease is an increase in the number of vaccinations of young children. The smallpox vaccine which was created in 1796 completely allows individuals to easily and quickly fight off the smallpox disease if they were to get it. By being able to fight the disease quickly and effectively it provides less time for the disease to affect another individual. Therefore, causing cases to decrease and become very rare as time goes on.

Help QUICK!!

Why is scientific notation used?

A. to round numbers to the nearest whole number
B. to promote reproducibility of data
C. to increase the validity of data
D. to express very large or very small numbers

Answers

Answer:

c.to increase the validity of data

Answer:

i think its D

Explanation:

pls tell me if im wrong

2(NaHCO3) how many atoms of hydrogen

Answers

Answer:

2 hydrogen atoms

2 Na atoms

2 carbon atoms

6 oxygen atoms

Answer:

11

Explanation:

***20 pts***
If you had 3.02 grams of Sodium (Na), how many moles would that be?
ANSWER W STEPS IF NOT REPORTED​

Answers

Answer:

0.131 mol

Explanation:

To convert grams to moles, you need to use the molar mass.  The molar mass is the mass number.  You can find this on the periodic table.  The molar mass of sodium is 22.990 g/mol.

(3.02 g)/(22.990 g/mol) = 0.131 mol

How much heat is absorbed when 500 g of
water, c = 4.184 J/g°C, goes from 25.0 °C to
35.0 °C?

Answers

Answer:

Assume that the coffee has the same density, 0.997 g/mL ... One liter of water has a mass of 1 kg and a specific heat of 4.184 J/(g °C).

Explanation:

Which of the following statements is true about neutrons? *

a)They have a neutral charge and are found in an atom's nuclues
b)They have a negative charge and are found in an atom's nucleus
c)They have a positive charge and are found in the orbitals of an atom
d)They have a neutral charge and are found in the orbitals of an atom

Answers

Answer:

A

Explanation:

Neutron, neutral subatomic particle that is a constituent of every atomic nucleus except ordinary hydrogen. It has no electric charge and a rest mass equal to 1.67493 × 10−27 kg—marginally greater than that of the proton but nearly 1,839 times greater than that of the electron.

What does e=mc2 mean <3

Answers

Answer:

An equation derived by the twentieth-century physicist Albert Einstein, in which E represents units of energy, m represents units of mass, and c2 is the speed of light squared, or multiplied by itself.

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