Kate and Janie are about to pour water into a beaker when they notice
the beaker has a crack at the bottom. What should the students do
with the beaker?

Answers

Answer 1
They should throw it away and use a different one
Answer 2

Answer:

Put the beaker in the broken glassware disposal and replace the beaker

Explanation:

Any beaker which has a crack could break/shatter if you apply heat. Also, cracked glassware is a lab safety hazard.


Related Questions

what element is 1s222s222p663s223p664s22

Answers

Answer:

Ca

you have too many numbers in there

Explanation:


I NEED HELP HERE PLEASE !!!

A gas has a volume of 4 liters at 3 atm. To expand the volume to 7000 ml, what the new pressure
(in atm) have to be?

Answers

Answer:

Gas it too expensive I need to get a job. I have no money to use at the atm

Explanation:

if your car is on 7000 ml it has issues and you need to take it to a mechanic.

5) Check all the following boxes that are true about electrons
A) The number of electrons must be the same as the number of protons.
B) Changing the number can make atoms unstable.
C) They are mostly located in the nucleus (center) of the atom.
D) Electrons must be removed from the outer rings before they can be removed from
the inner rings.
E) The inner shell has a maximum number of 2 electrons
Other:

Answers

Answer:

Explanation:

A isnt true bc there can be isotopes

B: Yes that's true

C: C is false: only protons and neutron live in the nucleus

D that is true: we can see that with ions

E that is true

PLEASE PLEASE HELP ITS PAST DUE AND IM CLUELESS ILL GIVE BRAINLIEST TO THE FIRST CORRECT ANSWER

Which of the following would be the evidence of a physical change?

a. change in state of matter
b. precipitate was formed
c. unexpected change in odor
d. formation of bubbles

Answers

Answer:

[tex]\boxed {\boxed {\sf A. \ Change \ in \ state \ of \ matter}}[/tex]

Explanation:

A physical change occurs when only the physical properties change. They are generally reversible and no new substances are formed.

However, in a chemical change, the chemical structures and properties change, plus new substances are formed.

Let's analyze each answer choice.

1. Change in state of matter

The state of matter is a physical property, so this is a physical change.

2. Precipitate was formed

A precipitate is a solid formed in a liquid solution. This is a new substance and a chemical change.

3. Unexpected change in odor.

A change in odor is a sign of chemical change.

4. Formation of bubbles

Bubbles signify the formation of gas or a new substance.

So, the best answer choice is A. change in state of matter

Question:

Which of the following would be the evidence of a physical change?

a. change in state of matter

b. precipitate was formed

c. unexpected change in odor

d. formation of bubbles

Answer:

A. Change in state of matter!

Explanation:

How to know it evidence of physical change!

EXPECTED color change.Change in SIZE or SHAPE.Change in state of matter.Reversible.No NEW substance formed!


The specific heat capacity of silver is 0.24 J/g °C. How many joules of energy are needed
to warm 0.500 g of silver from 25.0°C to 27.5°C?

Answers

Answer:

0.3 J

Explanation:

The equation for heat capacity is Q = mcΔT where Q is the heat, m is the mass of the substance, c is the specific heat capacity of the substance and delta T is the change in temperature. Plugging those values into the equation, we have Q = (.500)(0.24)(27.5-25) = 0.3

What is the process where plants make seeds that grow into new plants

Answers

This Process is called fertilization

Answer:

Plant fertilization

Explanation:

Hope this helps:) Have a great day

Please give Brainliest if could

Which of these human development stages occurs after childhood?
1. infancy
2. adulthood
3. maturation
4. adolescence

Answers

Answer:

4 Adolescence

Explanation:

Adolescence is the human development stages occurs after childhood. Hence option 4 is correct.

What is human development?

Human development is defined as expanding people's freedoms and opportunities while also enhancing their well-being. The true freedom that everyday individuals have to choose who they are, what they do, and how to live is what human growth is all about. This discipline tries to comprehend the numerous transformations that people and their relationships go through as they learn and develop.

The youngster reaches puberty during the adolescent stage. A abrupt rise in hormones causes a variety of emotional and mental changes throughout this time. The body's major and secondary sex traits develop during a significant growth spurt phase.

Thus, adolescence is the human development stages occurs after childhood. Hence option 4 is correct.

To learn more about human development, refer to the link below:

https://brainly.com/question/14911955

#SPJ2

Solution made up of a

Answers

Answer:

solute and solvent

Explanation:

Because solutes dissolves in solvent to form a solution

Which is a mixture

H20
Salad
Table salt

Answers

Answer:

salad is a mixture this is the answer of the question

please mark ne has a brainliest

A CANDLE WILL STAY LIT INSIDE THE SPACE SHUTTLE WHEN IT IS ON THE LAUNCH PAD, BUT NOT WHEN IT IS IN ORBIT. WHY?​

Answers

Answer:

because there is no oxygen in space for it to burn

because all fire need oxygen to burn

Explanation:

Ionic and polar compounds usually dissolve in what kind of solvents

Answers

Answer: They usually dissolve in Polar Solvents

Explanation:

Answer: Ionic/ Polar solvents.

Explanation:

Ionic or polar compounds will dissolve in ionic or polar solvents.

Water is a universal solvent because it can dissolve both ionic and polar covalent compounds.


Which of the following is a valid mole ratio from the balanced equation 2C3H6 + 902 - 6CO2 + 6H20? (4 points)
O 1 mol CHE
2 mol CO2
O 6 mol H,
9 mol O2
O 2 mol CHE
6 mol O2
O 3 mol H2O
2 mol CO2

Answers

Answer:

6 mol H, 9 mol O2

Explanation:

We can see that in water, there are 6 moles of hydrogen, and for oxygen, there is 9 moles

Any kind of help would be nice :)

Answers

Answer:

1st page, number a-ENergy is added or absorbed

I cant see the answers on the 2nd page

Explanation:

Answer:

1. A gas is released.

2. Energy is absorbed.

3. Color change.

4. Energy is given off.

5. Change in odor.

Explanation:

How many molecules are in 0.89 moles of CO2

Answers

Since 1 mole of CO2 is 6.02 x 10^23, you have to find .11 less than that.

How many moles of magnesium is 6.02 x 1022 atoms of magnesium?

Answers

Answer: 0.0500

Explanation:

HELPPPPO I NEED HELP AND THIS IS DUEE !!

Answers

Answer:  The second one. 26 m/sec

Explanation: i hope this helps! have a great day :)

I NEED HELP ASAP PLS

picture included^^^^^^ ^^

brainliest;) ^

Answers

Explanation:

20g of Na and 10g of Cl2 which is in excess?

The equation of the reaction is given as;

2 Na + Cl2  --> 2 NaCl

From the equation;

2 mol of Na reacts with 1 mol of Cl2

Converting the masses of reactants given to mol

Number of moles = Mass / Molar mass

Na;

Number of moles = 20 / 23 = 0.8696 mol

Cl2;

Number of moles = 10 / 71 = 0.1408 mol

In the chemical equation, the ratio was 2: 1 however with the masses, we can tell that Na is in by far excess.

0.8696 mol of Na would require 0.4348 of Cl2 (Present = 0.1408 mol)

This means;

Na - Excess Reactant

Cl2 - Limiting Reactant

Second part; How much NaCl would be produced?

The limiting reactant determines how much of the product is formed.

From the equation of the reactant;

1 mol of Cl2 produces 2 mol of NaCl

0.1408 mol of Cl2 would require x mol of NaCl

1  = 2

0.1408 = x

x = 0.2816 mol of NaCl

Converting to mass;

Mass = Molar Mass * Number of moles

Mass = 58.44 g/mol * 0.2816 mol

Mass = 16.46 g

what is the atomic number of an atom?​

Answers

Answer:

The atomic number of an atom is the number of protons in the nucleus or the number of electrons in a neutral atom

Explanation:

number of protons in the nucleus

What are land plants used for?

Answers

Answer:

Land plants are also known as Embryophytes. Embryophytes are complex multicellular eukaryotes with specialized reproductive organs. The name derives from their innovative characteristic of nurturing the young embryo sporophyte during the early stages of its multicellular development within the tissues of the parent gametophyte.

Explanation:

Answer:

there used for mountains , wait I'm just trynna get points ya feel me

Explanation:

In the northern hemisphere, free moving objects traveling over large distances are deflected to the ____________ Of their intended path of motion

Answers

Answer:

the answer is right

Explanation:

hope this helps

or whatever cameron said, give cam brainliest

have a good day:)

How many atoms are in 10 moles of chlorine?
O
A. 6.022 x 1023
O
B. 6.022 x 1024
O
C. 1.024 x 1023
D. 1.024 x 1024

Answers

Answer:

I Found the answer is A

Explanation:

I use a calculator

HELP ME! IM SO DESPERATE I WILL GIVE YOU BRANLIEST!!!!!!!!!!!!!!!!
Write the complimentary DNA strand for the given strand of DNA

CGTAAGCGCTAATTA

Answers

Answer:

The answer is GCATTCGCGATTAAT

Explanation:

"Chargaff's rule, also known as the complementary base pairing rule, states that DNA base pairs are always adenine with thymine (A-T) and cytosine with guanine (C-G). A purine always pairs with a pyrimidine and vice versa. However, A doesn't pair with C, despite that being a purine and a pyrimidine."

If this is not the answer, try the translation with the 5-3 Strategy and if not still then try using U instead of T.

The diagram below shows two organelles—a chloroplast and a mitochondrion.



How are these organelles similar?
A.
They are both found in animal cells.
B.
They are both designed to create food for the cell.
C.
They both have an inner membrane and an outer membrane.
D.
all of these

Answers

Answer:

I think the answer is C because it's TRUE they both do

Explanation:

Sorry I had to do some thinking on that one lol but yeah the first person who answered I think is right

How many moles are in 3.24 x 1020 particles of lead? (show work plz)

Answers

Answer:

0.000538 mol Pb

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Chemistry

Atomic Structure

Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Stoichiometry

Using Dimensional AnalysisExplanation:

Step 1: Define

3.24 × 10²⁰ particles Pb (lead)

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

Set up:                                  [tex]\displaystyle 3.24 \cdot 10^{20} \ particles \ Pb(\frac{1 \ mol \ Pb}{6.022 \cdot 10^{23} \ particles \ Pb})[/tex]Multiply/Divide:                                                                                               [tex]\displaystyle 0.000538 \ mol \ Pb[/tex]

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

Our final answer is in 3 sig figs, no need to round.

The empirical formula of a compound is CH. Its molecular mass is 70.14 g.
What is the factor? |
What is its molecular formula? (Write your formula without any space A2B3)

Answers

Molecular formulae: C2H2 (small 2s)
Hope this helps you

Please Helppppp:(((((

Answers

Answer:

what we have to do ? pls paste the whole question .

Explanation:

30 POINTS PLEASE HELP (IF YOU GIVE WRONG ANSWER ILL REPORT U ) What type of galaxy is described as revolving around a single point and has spinning arms of stars which extend from the center? (3 points)
spiral
elliptical
irregular
barred spiral

Answers

Answer:

The type of galaxy that is described as revolving around a single point and has spinning arms of stars which extend from the center is;

Spiral

Explanation:

A spiral galaxy which is the most common type of galaxy is a class of Hubble sequence of galaxies which was described in the 1936 work The Realm of the Nebulae by Edwin Hubble

Spiral galaxies are therefore have a flat disk shape such that the stars, the dusts, and the gas that make up the galaxy cluster in several radially spreading spiral arms that come together in the galaxy center

Answer:

Spiral

Explanation:


What mass of CO2 would you need so that you had 2.5 moles of it?
A:44g
B: 88g
C. 110g
D: 132g​

Answers

C I think correct me if I’m wrong

what form of matter has a definite shape and takes up space?​

Answers

Answer:

If something is in a solid state of matter, it has a definite shape and volume. The volume of an object is the amount of space it occupies. A block of wood placed on a table retains its shape and volume, therefore, it is an example of a solid. If a liquid is poured on that same table, there are very different results

Explanation:

Hello

Answer:

The reliable and correct answer to this question is Solid

Explanation: If something is in a solid state of matter, it has a definite shape and volume. The volume of an object is the amount of space it occupies. A block of wood placed on a table retains its shape and volume, therefore, it is an example of a solid.

. If a second polarizer is set up that is horizontal, what, do you suppose, happens with the
vertical component or the light, in general?

Answers

Only horizontally polarized light comes out the other side of the filter; all of the rest of the light is blocked by the filter. A black car reflects much less light than a white car.
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A standard die is rolled 12 times and a 2 comes up 3 times. The experimental probability of rolling a 2 with this die is? Select the correct answer.There were 800 farmers' markets initially in the USA in 2012. In 2013, the number of farmers' markets was 1.25 times the initial number of farmers' markets. Then, in 2014, the number of farmers' markets was 1.25 times the number of farmers' markets the previous year. If this pattern continues, which of the following graphs represents the number of farmers' markets in the USA over time? is this similiar or not similar ? NEED HELP HURRY!!! 1. Rob's favorite class is woodworking. For his lastproject, Rob glued together 7 strips of woodside-by-side to make a decorative sign. Each strip ofwood had the same width. His finished sign was 14inches wide. How many inches wide was each stripof wood?A. 2 inchesB. 91 inchesC. 21 inchesD. 7 inches Which phrase best describes the way ideas are organized on the page in prose writing?verse and chorusscenes and actssentences and paragraphslines and stanzas 3 ways America have divided? And 3 ways the country is divided today? Mountains in the background, rocky land is area A, ice protruding from water is area B.How does the Sun transfer its energy to areas A and B?Which statement compares how much heat is absorbed by areas A and B?Which statement compares the temperatures of areas A and B? 7+2-3+3--7+1-4 Determine how much you would receive in return for a 8 month, $500 loan to a friend if you charged the 3% annual interest. Show your work. 18. This data set shows the total points scored per game by the varsity basketball team during last year's season.606567626567636568646570646690Click on the blank and select the correct word or phrase that describes the shape of this data distribution.The data distributionis symmetric.is skewed left.is skewed rightcan't be determined. HELP ANOTHER ONE, Need anwser before time runs out... Find the unknown side of the triangle below.9 in18.8 in15 in8 in Reread lines 3-14 of functions of a zoos restate the reasons zoo advocates cite in support of the existence of zoos Please help Ill give you brainlest Selective breeding produces cultivated varieties of plants within the same genus. Cultivars often use ____names following the genus, which are not based in Latin. For example, for a hybrid tea rose which isblack, it is called Rosa'Black Baccara'. Choosing to go to college over getting a job right out of high school is an example of a(n)___.fixed costopportunity cost variable costO none of the above Which sentence contains an error in word usage?Help me please!! a dog walks 696 steps in 12 minutes. how many steps in 12 minutes i need help pleaseee . HELP!!! ILL GIVE YOU BRAINLIEST the sun transmits energy to the earth in the form of?A. radiation B. conduction C. convection