1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
liubo4ka [24]
2 years ago
8

Why do you think we use heat to dissolve sodium tetraborate?

Chemistry
1 answer:
xxTIMURxx [149]2 years ago
3 0

Answer:

Explanation:90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love u this is irrelevent but idrc lol

You might be interested in
Use the Internet to find the SDS for regular bleach (sodium hypochlorite, 4-6%).
gtnhenbr [62]

The SDS for regular bleach (sodium hypochlorite, 4-6%) for physical state is a thin liquid.

<h3>What is SDS?</h3>

SDSs provide students, researchers, workers, and emergency personnel with the proper procedures for handling a pure chemical, as well as information on what to do in an emergency situation involving the chemical.

The following items are:

A) Physical state

B) Routes of exposure and symptoms

C) Required protective equipment

D) First aid procedures

E) Fire-fighting measures

F) Chemical reactivity

G) Safe storage

H) Safe disposal

I) Environmental precautions and ecotoxicity

j) Spill cleanup procedures

A) Physical state : Thin liquid

B) Routes of exposure and symptoms :

Inhalation: Exposure to vapor or mist may irritate respiratory tract and cause coughing. Inhalation of  high concentrations may cause pulmonary edema.

Eye Contact:  Corrosive. May cause severe damage to eyes.

Skin Contact: May cause severe irritation to the skin. Prolonged contact may cause burns to the skin.

Ingestion: Ingestion may cause burns to the gastrointestinal tract and respiratory tract, nausea, vomiting,  and diarrhoea.

C) Required protective equipment :

Eye/Face Protection If splashes are likely to occur: Wear safety glasses with side shields (or goggles) or a face shield.

Skin and Body Protection Wear rubber or neoprene gloves and protective clothing such as a long-sleeved shirt.

Respiratory Protection If irritation is experienced, NIOSH/MSHA-approved respiratory protection should be worn.

Positive-pressure supplied air respirators may be required for high airborne contaminant concentrations. Respiratory protection must be provided in accordance with current local regulations.

Hygiene Measures Handle in accordance with good industrial hygiene and safety practice. Wash hands after direct contact. Do not wear product-contaminated clothing for prolonged periods. Remove  and wash contaminated clothing before re-use. Do not eat, drink, or smoke when using this  product

D) First aid procedures:

General Advice Call a poison control centre or doctor immediately for treatment advice. Show this safety data sheet to the doctor in attendance.

Eye Contact Hold eye open and rinse slowly and gently with water for 15 - 20 minutes. Remove contact lenses, if present, after the first 5 minutes, then continue rinsing the eye. Call a poison control centre or doctor for treatment advice.

Skin Contact Take off contaminated clothing. Rinse skin immediately with plenty of water for 15-20 minutes. Call a poison control centre or doctor for treatment advice.

Inhalation Move to fresh air. If breathing is affected, call a doctor.

Ingestion has the person sip a glassful of water if able to swallow. Do not induce vomiting unless told to do so by a poison control centre or doctor.

Do not give anything by mouth to an unconscious person. Call a poison control centre or doctor immediately for treatment advice.

Protection of First-aiders Avoid contact with skin, eyes, and clothing. Use personal protective equipment as required.

Wear personal protective clothing

E) Fire-fighting measures:

Suitable Extinguishing Media

Use extinguishing measures that are appropriate to local circumstances and the surrounding environment.

Unsuitable Extinguishing Media

CAUTION: Use of water spray when fighting fire may be inefficient.

Specific Hazards Arising from the Chemical

This product causes burns to the eyes, skin, and mucous membranes. Thermal decomposition can release sodium chlorate and irritating gases and vapours.

Explosion Data

Sensitivity to Mechanical Impact None.

Sensitivity to Static Discharge None.

Protective equipment and precautions for firefighters

As in any fire, wear self-contained breathing apparatus pressure-demand, MSHA/NIOSH (approved or equivalent) and full protective gear.

F) Chemical reactivity

Reactivity :

Reacts with other household chemicals such as toilet bowl cleaners, rust removers, acids, or products containing ammonia to produce  hazardous irritating gases, such as chlorine and other chlorinated compounds

G) Safe storage

Store away from children. Reclose the cap tightly after each use. Store this product upright in a cool, dry area, away from direct sunlight and heat to avoid deterioration. Do not contaminate food or feed by storage of this product.  

H) Safe disposal

Dispose of in accordance with all applicable federal, state, and local regulations. Do not contaminate food or feed by disposal of this product.

I) Environmental precautions and ecotoxicity

Environmental Precautions This product is toxic to fish, aquatic invertebrates, oysters, and shrimp. Do not allow products to enter storm drains, lakes, or streams.

Ecotoxicity

This product is toxic to fish, aquatic invertebrates, oysters, and shrimp. Do not allow product to enter storm drains, lakes, or streams.

j) Spill cleanup procedures

Methods for Cleaning Up Absorb and Containment. Wash residual down to the sanitary sewer.

Learn more about the SDS here:

brainly.com/question/14587983

#SPJ1

5 0
1 year ago
If cells in the process of dividing are subjected to colchicine, a drug that interferes with the formation of the spindle appara
Orlov [11]

The question is incomplete as it does not have the options which are:

A) anaphase

B) prophase

C) telophase

D) metaphase

E) interphase

Answer:

The correct answer will be option-D

Explanation:

Colchicine is a drug obtained from the <em>Colchicum autumnale</em> which is a poisonous European flowering plant. The drug is used to treat joint swelling and gout.

Colchicine shows its effect during the cell division cycle especially during the division of nuclear content. When the cell is in metaphase and is preparing for the anaphase, the colchicine inhibits the polymerisation of the microtubules. The inhibition of microtubules inhibits the assembly of the mitotic spindle as a result of this the DNA do not move into new daughter cells.

Thus, option-D is the correct answer.

5 0
2 years ago
The two balanced equations (1) and (2) are for reactions in which gaseous carbon dioxide is produced from the combustion of (1)
V125BC [204]

Answer:

2.0 mol of oxygen are consumed.

Step-by-step explanation:

You know that you will need a balanced equation with masses, moles, and molar masses, so gather all the information in one place.

M_r:   28.0                 44.0

          CO  + ½O₂ ⟶ CO₂ + 67.6 kcal

m/g:   112

<em>Step 1</em>. Convert grams of CO to moles of CO

1 mol CO = 28.0 g CO

Moles of CO = 112 × 1/28.0

<em>Step 2.</em> Convert moles of CO to moles of CO₂.

The molar ratio is 1 mol CO₂ to 1 mol CO

Moles of CO₂ = 4.000 × 1/1

Moles of CO₂ = 4.00 mol CO₂

Option A is <em>wrong</em>.

<em>Step 3.</em> Calculate the amount of heat generated.

q = ΔH

The conversion factor is 67.6 kcal/1 mol CO₂

q = 4.00 × 67.6

q = 270 kJ

Option B is <em>wrong</em>, because it gives the heat generated by 1 mol of CO.

<em>Step 4. </em>Calculate the moles of O₂ consumed

Moles of O₂ = 2.00 mol O₂

Option C is correct.

<em>Step 5.</em> Calculate the moles of CO₂ formed

Already done in Step 2.

Moles of CO₂ = 4.00 mol CO₂

Option D is <em>wrong. </em>

<em> </em>

<em>Step 6</em>. Calculate the moles of O₂ produced

Already done in Step 4.

Moles of O₂ = 2.00 mol O₂

Option E is <em>wrong. </em>

3 0
3 years ago
What is another name for a beta minus (B-) particle?
pentagon [3]
<span>electron, I believe.
</span>
6 0
2 years ago
What a dehydration means?.
Burka [1]

To solve such this we must know the concept of chemical reaction and dehydration reaction. Therefore, dehydration means to remove water from a compound.

<h3>What is chemical reaction? </h3>

Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, double displacement reaction.

Dehydration is a chemical process in which removal of water molecules from a compound take place using suitable reagent. The best reagent for dehydration can be any reagent that is water loving.

Therefore, dehydration means to remove water.

Learn more about the chemical reactions, here:

brainly.com/question/3461108

#SPJ1

8 0
1 year ago
Other questions:
  • Which is bigger 1,500 ml or 1.5 l
    10·2 answers
  • Brainiest if answered in the next 5m
    15·1 answer
  • the term diffusion comes from a latin word meaning to spread apart. how is the term diffusion related to its latin word of origi
    14·2 answers
  • Geologists may choose to lick a mineral to identify it. What mineral is the geologist expecting with this test?
    5·1 answer
  • Please help fast
    13·1 answer
  • What does the process of natural selection involve
    10·1 answer
  • The first measurements of the sea depth was made in 1840 in the centra south of Atlantic, where a plummet was lowered 2425 fatho
    12·1 answer
  • 2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(g)
    9·1 answer
  • ILL MARK AS BRAINLESS PLS HELP
    15·1 answer
  • based on the article what are some of the advantages that can be given by radio frequency and microwaves​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!