Chemistry High School

PLEASE HELP FAST! NO LINKS
50 POINTS

PLEASE HELP FAST! NO LINKS50 POINTS

Answers

Answer 1

Answer:

a

Explanation:

i am wrong haha

Answer 2

Answer:

are u out of time ?

Explanation:

Related Questions

Predict Will you find starch in a plant leaf grown in the light? Why?

Answers

Answer:

You would find starch in a plant leaf.

Explanation:

This is due to the fact that when there is excess energy, it will be stored in plant tissue as starch.

Mg(s) + HCl (l) --> H2 (g) +MgCl2 (s) A student conducted an experiment with 2g of magnesium and 3 mL of 6M hydrochloric acid. Equal volumes (3mL) of hydrochloric acid and magnesium strips (2g) were put into each tube. What are the reactants in this reaction?

Answers

Answer: Do you have an image so I can solve it?

I need help I don’t really get what I have to do to get the answer

Answers

Reactants are what you start with. Products are what come into being by or through the reactants. You can figure out what the products are in these sentences (which are really chemical equations written out in words rather than symbols) by looking for terms like “yield(s)/to yield,” “form(s)/to form,” “produce(s)/to produce,” “give(s)/to give,” etc. All of these terms provide the notion that you’re getting or making something. The specific substance(s) that follow these terms would be your product(s); the substance(s) that precede these terms would be your reactant(s).

So, for question 2, we see the term “produces.” There is one substance that precedes that term—potassium chlorate, which would be our sole reactant. And there are two substances that follow that term—potassium chloride and oxygen gas, which would be our two products.

In question 3, we see the term “yields” preceded by ammonium nitrate—our sole reactant—and followed by nitrogen gas, oxygen gas, and water vapor—our three products.

Lastly, in question 4, we see the explicit term “produces.” Moreover, we are told directly that dinitrogen tetrahydride reacts with oxygen gas; it should be pretty clear that these two substances are our two reactants here. The substances that we are told are produced are nitrogen gas and water, which would be our two products.

Thank you it means alot if you help :)!

Answers

Answer:

10.Semi-Solid

11.Liquid

12.Solid

13:Semi-Solid

The particles of a substance lose energy and change from
a disordered structure with large distances between the particles to
a loosely ordered state.
Which change of state is described?

Answers

Answer:

A Liquid

Explanation:

structure with large distance (gas) than goes to a loosely ordered state (liquid)

I hope this helps

how do you think petals protect the internal structures of a plant?

Answers

Answer:

hmm that is a very tricky question. probably from over flooding with water

The petals of the flowers grow and fall off to make new ones when you feed it so it can survive again .

What are three main ocean currents?

Answers

The North Equatorial Current, the North Atlantic Current, and the Canary Current.

does anyone wanna help me with my question for chemistry [i'll comment the question to you lol someone keeps sending links into my questions]

Answers

Answer:

same I was looking for a question like this I was asking question and someone kept commenting this bitly thing i dont kno I though it was just weird and frustrating lol

Mass = 35g Volume = 7cm3 What is the Density?​

Answers

Answer:

5 g/cm^3

Explanation:√3V=1.91293cm

Burning a candle melts the wax, but also burns the wick. Explain how burning a candle involves both physical and chemical changes.

Answers

Answer:

Burning of the candle is both physical and chemical change. Burning of the candle melts the wax and hence physical state of wax has changed from solid to liquid.  

Again the wax combines with the atmospheric oxygen and changes to carbon dioxide, heat and light.  

Thus both the changes are accompanied by the burning of the candle.

Explanation:

hope this helps!

~mina

what is the unit for particles of titanium iii oxide
a. Ions
b. Atoms
C: molecules
d. Formula units

Answers

Answer:

d

Explanation:


If you have 35 moles of sodium hydroxide (NaOH) in a 5000 mL solution, what is the concentration of the NaOH in the solution?

Answers

Answer:

7 mol.dm^3

Explanation:

formula for calculating concentration: C = n/v

Start by changing 5000ml solution to dm^3 because volume is in dm^3

1 ml = 1cm^3

then from a cm^3 to dm^3 you divide by 1000

5000ml = 5000cm^3

5000÷1000= 5dm^3

c = n/v

= 35/5

= 7mol.dm^3

When the water inside a living cell freezes, the ice crystals damage the cell. The wood frog is a unique creature that can survive being frozen. In extremely cold

conditions, the frogs liver produces large amounts of glucose (C6H12O6), which becomes concentrated in the frog's cells. How does the glucose help prevent ice

from forming in the frogs cells?

A)The added glucose dissociates and creates faster moving molecules.

B) The added glucose lowers the vapor pressure relative to the pure solvent.

C) The added glucose requires more energy which warms the frog

D)The added glucose lowers the freezing point of the solution within the frog's cells.

Answers

but i think its B but i need answer too

Sometimes the number of electrons in an atom changes. These atoms are called what

Answers

Answer:

ions

Explanation:

Which planet could support human life

Answers

Answer:

D

Explanation:

It states that D has oxygen, and is closer to the Sun.

Hope this helped, and please mark as Brianliest <3

Answer:

I am pretty sure it is B

Explanation:

The others would either burn u like a crispy chicken nugget or freeze you like a popsicle

what is the energy that can transform from one thing to another​

Answers

Answer:

Energía geotérmica (calor → energía eléctrica) Motores térmico, como el motor de combustión interna utilizado en automóviles o el motor de vapor (calor → energía mecánica) Energía térmica oceánica (calor → energía eléctrica) Represas hidroeléctricas (energía potencial gravitacional → energía eléctrica)

Explanation:

Answer:

One type of energy can change into another type of energy. Energy transformation means the changing of energy from one type to another, e.g. from kinetic energy to electrical energy, or from potential energy to kinetic energy.

Explanation:

Which is a characteristic of a physical change?

a
The chemical bonds in the substance are unchanged.

b
The change cannot be seen.

c
The molecules all move at the same speed.

d
The substance has reacted with another substance.

Answers

The answer for your question is a

Our body is also a good conductor
of electricity because of the
presence of ______.
Please answer it this is my last question on my test i'll give you 20 points to answer?
​

Answers

Our body is a good conductor of electricity because flow of charges and ions constitute electric current. As our body cells contain various ions like sodium ion , potassium ion , chloride ion etc which have the tendency to conduct electricity and this makes our body good conductor of electricity.

how many grams is 3.49 moles NaCl​

Answers

Answer:

m = 204.16 grams

Explanation:

Given that,

No. of moles, n = 3.49

Molar mass of NaCl, M = 58.5 g/mol

We need to find the mass of 3.49 moles NaCl​. We know that,

[tex]n=\dfrac{m}{M}\\\\m=n\times M\\\\m=3.49 \times 58.5\\\\m=204.16\ g[/tex]

So, there are 204.16 grams in 3.49 moles NaCl​.

Please help I'm not sure what the answers are​

Answers

Answer:

An element's mass number (A) is the sum of the number of protons and the number of neutrons. The small contribution of mass from electrons is disregarded in calculating the mass number.

here ya goooooooo!!!!!!!!!!!!

Answers

Answer:

Thank youuuuu bestie, you really pulling through

Answer:

yessss

Explanation:


Which of the following is an example of a physical property?*
the mass
ability to rust
flammability
ability to combust

Answers

Answer: The mass

Explanation: ability to rust, flammability, and ability to combust are chemical properties.

how did the idea of what a cell was develop overtime​

Answers

Answer:

experiments

Explanation:

I am not sure but heres my take

Answer:

It was only after the invention of electron microscope that the idea developed

Balance the equation :
CoBr3 + CaSO4

please define how many atoms each element contain

Answers

Answer:

im not 2100][dskcmaln,NMCS KHJBXsjk[pl,;maxkcjxnxxxxxxxxxxxxxas'j

Explanation:

mnkc

A voltaic cell with a basic aqueous electrolyte is based on the oxidation of Cd(s) to Cd(OH)2(s) and the reduction of MnO4–(aq) to MnO2(s).

Answers

Answer:

See explanation

Explanation:

Oxidation half equation;

3Cd(s) + 6OH^-(aq) ------> 3Cd(OH)2(s) + 6e

Reduction half equation;

2MnO4^-(aq) + 8H^-(aq) + 6e --------> 2MnO2(s) + 4H2O(l)

Balanced reaction equation;

3Cd(s) + 6OH^-(aq) + 2MnO4^-(aq) + 8H^-(aq)  ------> 3Cd(OH)2(s) + 2MnO2(s)

Number of electrons transferred = 6

6. List two (2) ethical issues that the healthcare provider has a public duty to report.

Answers

Answer: Communicable diseases, abuse gunshot wounds and forensic medicine

Explanation:

The amount of a solid substance that dissolves in a gas or in a liquid is affected by all of the following
except:
A- the nature of the substance
B- the temperature
C- the pressure
D- Stirring (Agitation)

Answers

Answer:

C. The Pressure

Explanation:

Pressure only affects the solubility of gases. It barely affects the solubility of solids and liquids.

Convert 5 pounds to kilograms
Help me pleaseeee

Answers

Answer:

2.268

Explanation:

5 lb × 0.45359237 = 2.26796185 kg

How to convert Pounds to Kilograms

1 pound (lb) is equal to 0.45359237 kilograms (kg).

1 lb = 0.45359237 kg

The mass m in kilograms (kg) is equal to the mass m in pounds (lb) times 0.45359237:

m(kg) = m(lb) × 0.45359237

Example

Convert 5 lb to kilograms:

m(kg) = 5 lb × 0.45359237 = 2.268 kg

Hope this helped!!!

Answer:

2.26796 kg

Explanation:

Which organisms are decomposers?

Select all correct answers.

mushrooms
snake
bacteria
grass
mold

Answers

mushrooms
bacteria
mold

Answer:

mushrooms bacteria mold

Explanation:

3.4
Why is this cocktail not the perfect medication to treat infections by these
bacteria?​

Answers

Answer:

many bacteria are resistant to penicillin and other β-lactam antibiotics - some bacteria have beta-lactamase enzymes and are able to break down the antibiotics - as a result, many drugs are combined with other drugs that are β-lactamase inhibitors.

Explanation:

Quizlet

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