Answer:
true
Explanation:
its A
The above statement is considered to be correct and true.
The Occupational Safety and Health Administration (OSHA) is a federal agency that is saddled with the responsibility of assuring and ensuring a safe and healthy working conditions for an employee or group of employees by doing the following;
Setting and enforcing safety standards.Setting and enforcing rules.Providing education.Conducting trainings and assistance to various organizations.According to the Occupational Safety and Health Administration (OSHA), trainings on the adoption and application of safety precautions (tools) such as wearing a personal protective equipment (PPE); face masks (respirators), ear plugs, safety boots, gloves, helmet, etc., are very important and are essentially to be used by all employees (workers) while working in hazard prone environments or industries.
However, when an employee fails to strictly adhere to the recommended OSHA safety precautions, he or she is more likely to sustain a work-related accident or injury from a fall. Thus, this would negatively affect (impact) the employee because it results in him or her being absent from work (time off) and requires some costs to pay for medicals (medical cost).
In conclusion, injuries from work related falls can affect employees by resulting in time off and medical cost.
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the term pH was discovered by which scientist
Answer:
Such was the case with the concept of pH, introduced in 1909 by Søren Sørensen as a convenient way of expressing acidity—the negative logarithm of hydrogen ion concentration.Jan 8, 2018
Profession: Chemist
What is a common form for synthesis reactions?
a. AB → C
b. A + B → BC
c. C → A + B
d. A + B → C
Answer:
The Best Answer would be B but the correct answer is A+B --> AB
Explanation:
Hello! Please help.
Is air an element, compound, or mixture?
Is Hydrochloride Acid an element, compound, or mixture?
Oh if you can could you put the explanation of one of them, thank you!
Answer:
Air is a mixture. Its constituents can be separated. For example: oxygen, nitrogen etc.
Hydrochloric acid is a mixture, being an acidic liquid.
MARKING BRAINLIEST!!
Students learned that the job of the nucleus of an animal cell is to control all of the cell's activities.
A. Which organ system has a similar function?
B. Respiratory system
C. Circulatory system
D. Nervous system
Muscular system
The temperature of a 9.0 g sample of glass changed from 20 to 50 when it absorbed 680 J of heat. What is the specific heat of this glass sample?
Answer:2518.5J/kg/K
Explanation:
please answer; i’ll give brain
Answer:
the answer to this question is option A mark me as brainliest
1) Which diagram shows an element?
2) which diagram shows a mixture?
3) which diagram shows a compound?
4)which diagram only shows atoms chemically bonded together?
5) which diagram shows different atoms of matter physically combined together?
Answer:
r
I think 1 option okkkkkkkkkkkkk
Explanation:
mhfs4trfsetc fthcfeencfgeh,cbwjh vbytbnmdtuh3lg dl5flnfwk3t kqre,fvbt,klkkkjh
PLEASEEE HELP me on CHEMISTRY!! Will give brainliest!
Two students plan and carry out an investigation to determine if ionic or covalent bonds have stronger intermolecular forces. They check the following data.
a. identify the type of intramolecular bonds that are involved.
b. Which substance will have the stronger intermolecular forces?
c. Which properties allow you to predict the strength of the intermolecular forces?
Answer:
A Glucose C6H12O6 is a covalent compound while NaCl sodium chloride is a ionic compound.
B Stronger molecular forces are present in NaCl because ionic bond is stronger than covalent bond.
C melting point allow us to predict the strength of intermolecular forces
High melting point stronger molecular forces and vice versa.
Explanation:
Which of the following is true about nuclear fusion
a) it occurs in the sun
b) a heavy atom is split
c) it can be controlled easily
d) an electron is lost by the atom
Answer:
i would assume that it would be (a)
Explanation:
The Sun generates its energy by nuclear fusion
NUCLEAR FISSION is when the heavy atom is split
fusion energy is scientifically feasible. Plasma conditions that are very close to those required in a fusion reactor are now routinely reached in experiments
mass gets lost is nuclear fusion
so (a) is the most accurate
Answer:
it occurs in the sun
Explanation:
just took the test so its A. GL!
answer with correct significant figures (*no scientific notation): 847.3219 x 34.6 x 1.4560 =
Answer:
42686.04375
Explanation:
Multiply 847.3219 by 34.6 to get 29317.33774, then multiply this answer by 1.4560 to get the final answer which is 4286.04375.
Help me ASAP !!! Thank youuu
Answer:
uhh the first one is the baby plants are gentically simulator to the parent if its wrong im sorry
Explanation:
hhhhhhhhhhhheeeeeeeelpppppp
Answer:
Solar photons
Hope this helps :)
Of the two bromoderivatives, C6H5CH(CH3)Br and C6H5CH(C6H5)Br which one is more reactive in SN1 substitution reaction and why?
Answer:
tertiary
Explanation:
tertiary halogenoalkanes are more reactive than primary and secondary as the carbocation is more stable due to alkyl groups( have high electron density) donating electrons to stabilise the carbocation
Consider the following incomplete reaction. Mg + 2Y ---> MgCl₂ + H₂ Choose the formula for the missing substance Y.
A. H₂Cl
B. HCl
C. Cl
D. Cl₂
how many atoms are ln 6.31 moI of sodium sulfate
Question 2
5 pts
(03.01 MC)
The nucleus of an atom is dense and positively charged. What was observed when
positively charged particles were radiated onto a gold atom during Rutherford's
experiment because of this?
O Negative charges were concentrated at the center of the atom.
N
Particles that struck the center of the atom were repelled.
Particles that struck the edges of the atom were repelled.
Positive charges were distributed all over the atom.
Answer:
The correct answer is particles that struck the center of the atom were repelled.
Explanation:
Rutherford performed an experiment which is called the gold foil experiment. In the gold foil experiment of the Rutherford, a gold foil is bombarded with the positively charged alpha particles. The bombardment of the alpha particles shows the unexpected result to Rutherford.
He thought these particles go through the gold foil but to his surprise, some particles bounced back and some deflected after colliding with foil. On the basis of these, he suggested that there is a positive charge present in the center of an atom that repelled the positive charge of alpha particles and leads to deflection and bouncing back.
Thus, the correct answer is particles that struck the center of the atom were repelled.
Air,steam and water under pressure are all examples of ___. A)vapors B) nonhazardous materials C)stored energy D) DC power sources
Answer:
a
Explanation:
Air, steam, and water are the different phases of matter, including gas and liquid. Air, steam, and water under pressure are all examples of vapors. Thus, option A is correct.
What are phases of matter?Matter is any substance present in the form of liquid, solid, or gas. They have the property to get converted into another phase of matter under specific pressure and temperature conditions.
The vapor and air are present as an invisible gas, and water is a visible liquid that can be converted into a vapor state under high pressure and temperature condition. The process of evaporation can convert water molecules into vapor. Air and steam are used as vapor under pressure in inhalation devices.
Therefore, option A. the air, steam, and water are vapor under pressure.
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Who was Alexander Fleming
Sir Alexander Fleming (6 August 1881 – 11 March 1955) was a Scottish physician and microbiologist, best known for discovering the enzyme lysozyme and the world's first broadly effective antibiotic substance which he named penicillin.
For this discovery he shared the Nobel Prize in Physiology or Medicine in 1945 with Howard Florey and Ernst Boris Chain.
he was a british doctor, born in august 6, 1881. he was also known as pharmacologist.
you can always search your question in goo, and you'll get a very short answer :)
Becquerel’s experiment consisted of four steps.
1. Get a sample of a uranium salt.
2. Expose the salt to sunlight.
3. Expose photographic plates to the salt.
4. Develop the plates.
A change in which step led to Becquerel’s discovery of radioactivity?
1
2
3
4
Answer its Ccccccccccccccccccccccccc
You are required to identify the following substances using their properties Substance A. conducts electricity in both solid and liquid state. Substance
B. conducts electricity in solid state but its electrical conductivity in liquid state is unknown. Also it burns at a vey high temperature to give off carbon dioxide gas.
C. conducts electricity in liquid state but not in solid state Substance
D. does not conduct electricity in any state
You have to identify that; which substance is an ionic compound, which one is covalent compound , which one is a metal and which one is graphite.
Answer:
Explanation:
A. conducts electricity in both solid and liquid state.
Metal
B. conducts electricity in solid state but its electrical conductivity in liquid state is unknown. Also it burns at a vey high temperature to give off carbon dioxide gas.
Graphite
C. conducts electricity in liquid state but not in solid state
Ionic compound
D. does not conduct electricity in any state
Covalent compound
A metal is a substance that conducts both heat and electricity in solid and liquid state. They do this by the presence of free mobile electrons within their atomic space.
Graphite is a non - metal but it has free mobile electrons within its carbon frame work that allows of electrical conduction.
Ionic compounds are conductors only in molten state. In solid state, they do not conduct electricity and are called electrolytes in their liquid or molten form.
Covalent compounds do not ionize in solution and will not have ions which can conduct electric current.
All bonds release or absorb the same amount of energy
true
false
what is the wavelength of a 250Hz wave traveling station speed of 350 m/s
Explanation:
ok....m.m....... nm...m
Most metals are _____ at room temperature and generally have moderate to high melting and boiling points because the metallic bond is fairly strong. The melting point of a metal will _____ as atomic size increases because larger metal ions have a _____ attraction for the electron sea.
Answer:
solid
decrease
smaller
Explanation:
f
Which properties do all solids share?
A. Color and fixed shape
B. Color and fixed volume
C. Fixed volume and fixed shape
D. Fixed shape; volume that depends on container
Answer:
c
Explanation:
because when you hold a solid in your hand does it move does it shift no it stays the same so it doesn't take the form of the container it's in cuz that's a liquid.
Write out the chemical equations showing how a buffer solution made from H2PO4- and HPO42- would react to the addition of an acid (H+ ions) or a base (OH- ions).
Answer:
kindly check the explanation section.
Explanation:
The two ions given in the question above that is Dihydrogenphosphate, H2PO4- and HPO42- are so important when it concerns buffering. During intracellular pH balancing the ions that is H2PO4- and HPO42- reacts with OH⁻ and H⁺ respectively. The equation for the chemical reaction is given below for both ions.
H₂PO₄⁻ + OH⁻ < =====================================> HPO₄²⁻ + H₂O.
HPO₄²⁻ + H⁺ <===========================================> H₂PO₄⁻.
HELP ME PLEASE AND GOOD MORNING
Answer:
I think it is lightning
Explanation:
Lightning creates an electricity and it has lots of energy, so I think that it is lightning
Answer:
Good morning as well! The answer to this question is lightning.
Explanation:
Lightning is a source of electrical energy. Lightning also has a certain amount of voltage. Frozen raindrops bump into each other in the air causing an electrical charge. Therefore, lightning is created.
Which formula represents a polar molecule? 1. O2 2. CO2 3. NH3 4. CH4
Answer:
NH3.
Explanation:
You can draw Lewis diagrams to answer this question and what distinguishes a polar from a nonpolar molecule: A nonpolar molecule must be symmetric and have no lone pairs on its central atom. The only one that fits the criteria necessary to be a polar molecule is NH3.
The chemical formula which represents a polar molecule is NH₃ as there is charge separation in the molecule.
What is chemical formula ?Chemical formula is a way of representing the number of atoms present in a compound or molecule.It is written with the help of symbols of elements. It also makes use of brackets and subscripts.
Subscripts are used to denote number of atoms of each element and brackets indicate presence of group of atoms. Chemical formula does not contain words. Chemical formula in the simplest form is called empirical formula.
It is not the same as structural formula and does not have any information regarding structure.It does not provide any information regarding structure of molecule as obtained in structural formula.
There are four types of chemical formula:
1)empirical formula
2) structural formula
3)condensed formula
4)molecular formula
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Can somebody plz answer both these questions in this question thanks! only 2 sentences is fine :)
WILL MARK BRAINLIEST WHEOEVER ANSWERS FIRST :DDDD
Answer:
Electricity is made at a generating station by huge generators. The current is sent through transformers to increase the voltage to push the power long distances. The electrical charge goes through high-voltage transmission lines that stretch across the country.
This drawing shows a human body system.
What is the primary function of this body system?
A. The transport of nutrients, water, and oxygen to body cells.
B. The chemical breakdown of food into smaller pieces.
C. The protection of vital organs from injury.
D. The production of hormones that regulate growth and metabolism.
Answer:
This question is incomplete
Explanation:
This question is incomplete because of the absence of the drawing referred to in the question.
However, each option refers to a particular respiratory system and with the organs and the tissues mentioned here one can eventually identify which option is correct when the drawing is available.
A) The system described here is the cardiovascular system (or the circulatory system). This system involves the heart, blood vessels and the blood (which are what help in the transport of the materials mentioned in the question).
B) The system described here is the digestive system. This system involves the gastrointestinal tract and organs (that assist in the production/secretion or storage of chemicals that breakdown food into smaller pieces) such as the mouth, esophagus, stomach, small intestine, large intestine, rectum and the anus.
C) The system described here is the skeletal system. This system involves all the bones and joint in the body (the skeleton) which also helps in protecting organs in the body.
D) The system described here is the Endocrine system. This system involves several internal glands (such as the thyroid gland and the adrenal glands) in the body.
NOTE: Identify which organ and/or tissue is present in the diagram and use that to select the appropriate option from the description of each of the options provided above.
Answer:
b
Explanation:
A sample of water with a mass of 27.56g and an unknown temperature loses 2443 Joules. If the final temperature is found to be 62.50 C. What was the initial temperature?
Answer:
41.3 °C
Explanation:
From the question given above, the following data were obtained:
Mass (M) of water = 27.56 g
Heat (Q) loss = 2443 J
Final temperature (T2) = 62.5 °C
Initial temperature (T1) =?
NOTE: The specific heat capacity (C) of water is 4.18 J/g°C
Thus, we can obtain the initial temperature of the water by using the following formula:
Q = MC(T2 – T1)
2443 = 27.56 × 4.18 (62.5 – T1)
2443 = 115.2008 (62.5 – T1)
Divide both side by 115.2008
2443 / 115.2008 = (62.5 – T1)
21.20645 = 62.5 – T1
Collect like terms
21.20645 – 62.5 = – T1
– 41.3 = – T1
Divide both side by – 1
– 41.3 /– 1= – T1 / –1
41.3 = T1
T1 = 41.3 °C
Thus, the initial temperature of the water was 41.3 °C
