Which is a TCS food?
Answer:
Food from plant origin that is cooked such as rice, potatoes and pasta.Food from animal origin that is raw, cooked or partially cooked
Explanation:
i searched it up
Explanation:
TCS foods are foods that requires time and temperature controls to limit the growth of illness causing bacteria.
Which represents an empirical formula?
a)C2H4
b)B2H6
c)Al2O3
d)C6H6
Answer:
C. Al2O3
Explanation:
The empirical formula is an expression that represents the simplest proportion in which the atoms that form a chemical compound are present. It is therefore the simplest representation of a compound.
For options A, B and D the empirical formulas are as follows:
A. CH2
B. BH3
D. CH
Which common substance is a base?
Question 4 options:
vinegar
lemon juice
yogurt
ammonia
Answer:
AMMONIAExplanation:
HOPE IT HELPS!!!!!
Answer:
Ammonia is a base.
Explanation:
Vinegar, lemon juice, and yogurt all have a pH under 7. If a substances pH is under 7 then it is acidic. If it is above 7 then it is a base. Ammonia has a pH above 7 therefore it is a base.
Help with question 01.4 pleaseeee
Answer:
Is there answer choices?
Explanation:
history of atomic structure
Matter is composed of indivisible building blocks. This idea was recorded as early as the fifth century BCE by Leucippus and Democritus. The Greeks called these particles atomos, meaning indivisible, and the modern word “atom” is derived from this term. Democritus proposed that different types and combinations of these particles were responsible for the various forms of matter. However, these ideas were largely ignored at the time, as most philosophers favored the Aristotelian perspective.
How to Represent nitrogen and magnesium with the Bohr-Rutherford model?
Nitrogen: 2 electron shells and 5 valence electrons
Magnesium: 3 electron shells 2 valence electrons
find the atomic numbers of the as yet undiscovered next two members of the series.
trash photo again but the middle question is answered i just need the top and bottom question answered :)
Answer: ok
Explanation: i agree
Answer question will give brainliest
Explanation:
Elastic Potensial energy is what causes a ball to bounce or rebound because it is transformed into kinetic energy, which is then used to bring the ball back up.
3. How did your hypothesis work out? What was surprising in this experiment?
someone help please
Answer:
Whats the hypothesis and the experiment?
Explanation:
I cant really help without context
Help me fill in all the blanks I’m not sure if I’m doing this correctly
The temperature of the ideal gas in the container shown is 300k. The gas occupies a volume of 1.27. What would be the volume of the gas if it’s temperature were decreased to 100k?
Answer:
0.432
Explanation:
The temperature of the ideal gas in the container shown is 300K. The gas occupies a volume of 1.27. What would be the volume of the gas if it’s temperature were decreased to 100K?
At 100K the particles are moving 1/3 as fast as 300K so the volume would be
1/3 X (1.27) =0.423
phân tử khối của MnO4
Answer:
Phân tử khối của MnO4 = 55 + 16 x 4 = 119 ( đvC )
Explanation:
Please help, I need help with this question
Answer:
Flourine
chlorine
bromine
iodine
What force must act on a 30 kg mass object to give it an acceleration of 0.45 m/s²?
PLSS HELPP MEE THE SUBJECT IS SCIENCE
Explanation:
Force=mass×acceleration
F=m×a
F=30×0.45= 13.5N
hope this helps you.
How many grams of water can be heated 75.0 celsius by the absorption of 40.0 kcal?
Answer:
8.9
Explanation:
give reason : Inert gas shows least reactivity
pls help
Answer:
Noble gases also known as inert gases are the least reactive of all known elements because with eight valence electrons, their outer energy levels are full. As a result, noble gases cannot become more stable by reacting with other elements and gaining or losing valence electrons. Therefore, noble gases are rarely involved in chemical reactions and almost never form compounds with other elements.
Explanation:
The only exception is helium, which has just two electrons. But helium also has a full outer energy level, because its only energy level (energy level 1) can hold a maximum of two electrons. A full outer energy level is the most stable arrangement of electrons.
1. In the process of convection, heat travels
a.from side to side
b.upwards
c.downwards
d.in all direction
Answer:
option d in all direction
Explanation:
very firstly you have to understand that what is convection convection is a process of heat transfer which is takes place due to molecules and you know moleculescan easily travels with any sites from side to side upwards or downwards so the answer will be in all directionWhich words describe the image below? CHECK ALL THAT APPLY.
A.)liquid
B.)solid
C.)gas
please help!
A sample of gas is measured to be 375 ml at 1.15 atm. The pressure
is increased to 2.05 atm. What is the new volume?
Answer:
Direct method:
1.15x375/2.05
=21.03mL
How many protons, neutrons, and electrons make up an ion of
radium-208 that has a +2 charge?
Answer:
proton=88
electron=88
neutron=138
Someone pls help me With this I will make you as brain
Using the diagram below, which global winds are moving at points 1 and 6?
Question options:
Prevailing westerlies
Trade Winds
Polar Easterlies
Doldrums
Answer:
Polar Easterlies
Explanation:
Answer:
prevailing westerlies
O Which of the following determines the
identity of an element?
a. atomic number
b. mass number
c. atomic mass
d. Overall changes
Answer:
A. atomic number
Explanation:
the mass number alone cannot uniquely identify an element. But the number of protons in the nucleus identifies it uniquely. In addition, if the atom is neutral, then the atomic number also equals the number of electrons in its orbitals.
QUICK!! 2NaN3 —> 2Na + 3N2
this equation is balanced, but why does the N in the reactant have a subscript of 3, and the N in the product has a subscript of 2.
why did the subscript change? from what i learnt, when you balance an equation, you can only use coefficients to balance the equation.
Answer:
-Before balancing the equation, you need to determine the index of the components in the substances correctly to balance
-Between two atoms in the molecule N2 forms a stable triple bond, so nitrogen gas is denoted N2.
-Nitrogen in compounds with sodium carries a charge of -3, and sodium has a charge of +1 in all compounds, so we get NaN3
Explanation:
answer from VNese, used GGtranslate
how many grams are equal to 413 kg. [?]x10^([?])g
413000 grams thats the answer hope that helps ;]
Answer the question below based on the periodic table entry for silicon.
What is the atomic mass?
14
28.08
2
28
Answer:
28
Explanation:
the atomic mass is the name that a downward under the element
Someone pls help me With this I will make you as brain
Answer:
C
Explanation:
Cho muối X vào dd NaOH, đun nóng, thu được một chất khí làm xanh giấy quỳ ẩm. Chất nào sau đây thỏa mãn tính chất của X?
A.K2SO4 B.NH4NO3 C.CaCO3
D.FeCl2
Answer:c
Explanation:
how does density and flammability explain how carbon dioxide could be coming from the bath bomb?
The melting point is 152.7 C°, the boiling/decomposing point is 310 C°, and the density is 1.665 g/cm³. How are Bath bombs made? Baking soda is derived from soda ash.