Answer:
Wash hands and surfaces often. Harmful bacteria can spread throughout the kitchen and get onto cutting boards, utensils, and counter tops. To prevent this: Wash hands with soap and hot water before and after handling food, and after using the bathroom, changing diapers; or handling pets.
The form of energy carried by moving electrical charges is ____________________ energy.
Answer:
kinetic
Explanation:
hope this helps
Answer:
Kinetic energy
Explanation:
Plz help ASAP
What is the molarity of a 0.6 L solution that contains 50.0 grams of sodium hydroxide(NaOH)?
A) 2.1 M
B) 2.9 M
C) 3.3 M
Answer: A 2.1
Explanation:
True or false stars will eventually burn out causing the universe become cold and dark
What is bungee gum made of? A) The properties of both rubber and gum. B) Bungee cord and gum.
Answer:
The proporties of both rubber and gum.
Explanation:
The interaction of the skeletal and muscular systems to create movement and locomotion is regulated by which organ system?
A. Nervous
B. Respiratory
C. Digestive
D. Immune
Answer: steaks
Explanation:
Perform the following operation
and express the answer in
scientific notation.
2.600x10-5 x 6.100x10-5
[? ]x10?)
Answer:
Value of expressions in scientific notation = 15.86 x 10⁻¹⁰
Explanation:
Given expressions:
2.600 x 10⁻⁵ x 6.100 x 10⁻⁵
Find:
Value of expressions in scientific notation
Computation:
2.600 x 10⁻⁵ x 6.100 x 10⁻⁵
2.600 x 6.100 x 10⁻⁵x 10⁻⁵
15.86 x 10⁻⁵ x 10⁻⁵
We know that;
qᵃ x qᵇ = q⁽ᵃ⁺ᵇ⁾
So,
15.86 x 10⁽⁻⁵⁻⁵⁾
15.86 x 10⁽⁻¹⁰⁾
Value of expressions in scientific notation = 15.86 x 10⁻¹⁰
What is the importance of a chemical symbol?
Answer:
Chemical symbols are used to standardize the 'language of chemistry' and to identify elements and atoms in a chemical formula easily. Chemical symbols consist of one or two letters, most often derived from the name of the element.
Explanation:
Answer:
Explanation:
A chemical symbol is a notation of one or two letters representing a chemical element. Its used to identify elements and atoms in a chemical formula easily. Chemical symbols consist of one or two letters, most often derived from the name of the element.
Which of the following is a polar substance?
O Water
O Grease
O Gasoline
O Oil
How many of each type of atom should react so that the electrons
lost will equal the electrons gained?
Explanation:
ni suna ham naHow many of each type of atom should react so that the electrons
lost will equal the electrons gained?
Water vapor _____.
keeps the Earth cool
exists mainly over the poles
traps heat and keeps the Earth warm
is a trace gas
Answer:
traps heat and keeps the Earth warm.
How many moles are in 3.555 g of c2h2?
Answer:
0.13653499904751903
Explanation:
Convert Units .com
given the following hypothetical reaction 2E(g)+ F(g)+O(g)_products.if the rate law is rate _K(e)^2(f)^-1,what is the order of the reaction with respect to water?
Answer:
See explanation.
Explanation:
Hello there!
In this case, considering the given information, it is not possible to figure out such order of reaction with respect to water as it is not involved in the given chemical reaction:
2E(g)+ F(g)+O(g)_
However, we can say that the order of reaction is 2 with respect to E (power of 2 in the rate law), 1 with respect to F (power of 1 in the rate law) and 0 with respect to O (power of 0 or not present in the rate law).
Regards!
3 What does the term electrolysis mean?
?
Answer:
Electrolysis is the passing of a direct electric current through an electrolyte producing chemical reactions at the electrodes and decomposition of the materials. The main components required to achieve electrolysis are an electrolyte, electrodes, and an external power source.
Explanation:
Answer:
In chemistry and manufacturing, electrolysis is a technique that uses direct electric current to drive an otherwise non-spontaneous chemical reaction. Electrolysis is commercially important as a stage in the separation of elements from naturally occurring sources such as ores using an electrolytic cell.
hope it helps uh....
I am new here...
thanks ^^
26. The water of the surface of the ocean is termed surface currents and moves in a regular pattern. They don't depend on the weather and move heat around Earth. What two things create surface currents?
Which of the following factors affects the amount of heat absorbed by a substance? (5 points) a. Shape of the substance b. Melting point of the substance Selected: c. Boiling point of the substanceThis answer is incorrect. d. Specific heat capacity of the substance
Answer:
d. Specific heat capacity of the substance
The factors affects the amount of heat absorbed by a substance is the specific heat capacity of the substance. Therefore, option D is correct.
What is specific heat capacity?The specific heat capacity of a substance, also known as the mass heat capacity, is the heat capacity of a sample of the substance divided by the mass of the sample.
When heated with constant heat input, a substance's temperature curve will be flatter the higher its specific heat capacity.
The heat capacity per unit mass of a substance, often known as the specific heat capacity. Experiments demonstrate that three things affect the transmitted heat: (1) The change in temperature, (2) the system's mass, (3) the substance's kind and phase, and (4) the system's composition.
Thus, option D is correct.
To learn more about the specific heat capacity, follow the link:
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Pick the selection that increases in energy.
7f, 6s, 4p
4s, 4p, 4d
1s, 6f, 4d
3d, 4s, 3p
Answer:
i think mix im um 1s 6f 4d is correct answer
An unknown substance is obtained by police. The forensics laboratory has
determined it is made of nitrogen and oxygen. If 74.66 grams are nitrogen
and the police obtained a 250 gram sample, what is the percent
composition of oxygen in the sample?
Answer:
70.0 %
Explanation:
Step 1: Given data
Mass of nitrogen (mN): 74.66 gMass of the compound (mNxOy): 250 gStep 2: Calculate the mass of oxygen (mO) in the compound
The mass of the compound is equal to the sum of the masses of the elements that form it.
mNxOy = mN + mO
mO = mNxOy - mN
mO = 250 g - 74.66 g = 175 g
Step 3: Determine the percent composition of oxygen in the sample
We will use the following expression.
%O = mO / mNxOy × 100%
%O = 175 g / 250 g × 100% = 70.0 %
What is the wavelength of a photon with a frequency of 7.81 1014 Hz?
A.
517 nm
B.
384 nm
C.
848 nm
D.
234 nm
Answer:
Option B. 384 nm
Explanation:
From the question given above, the following data were obtained:
Frequency (f) = 7.81×10¹⁴ Hz
Velocity of photon (v) = 3×10⁸ m/s
Wavelength (λ) =?
The wavelength of the photon can be obtained as follow:
v = λf
3×10⁸ = λ × 7.81×10¹⁴
Divide both side by 7.81×10¹⁴
λ = 3×10⁸ / 7.81×10¹⁴
λ = 3.84×10¯⁷ m
Finally, we shall convert 3.84×10¯⁷ M to nm. This can be obtained as follow:
1×10¯⁹ m = 1 nm
Therefore,
3.84×10¯⁷ m = 3.84×10¯⁷ m × 1 nm / 1×10¯⁹ m
3.84×10¯⁷ m = 384 nm
Thus, the wavelength of the photon is 384 nm
How many grams of NaOH are contained in 5.0*10ml of a0. 77 sodium hydroxide solution
Answer:
1.54grams
Explanation:
Molarity of a solution = n/V
Where;
n = number of moles (mol)
V = volume (L)
Based on the information given in this question;
Volume of NaOH solution = 5.0 × 10ml
= 50ml = 50/1000 = 0.050 L
Molarity = 0. 77 M
Using; Molarity = n/V
0.77 = n/0.05
n = 0.77 × 0.05
n = 0.0385mol
To find the mass (grams) of NaOH in the solution, we use the following formula:
mole (n) = mass/molar mass
Molar mass of NaOH = 23 + 1 + 16 = 40g/mol
0.0385 = mass/40
mass = 0.0385 × 40
mass = 1.54grams.
Which type of lipids/fats increase cholesterol levels in the
blood?
saturated lipids
unsaturated lipids
Answer:
In humans, saturated fat intake increases LDL cholesterol in comparison with all nutrients except trans fats [2•]. Because saturated fat also increases high-density lipoprotein (HDL) cholesterol, the total cholesterol (TC) to HDL cholesterol ratio (a risk marker for CVD) is not altered. I would like Brainleist please!
Explanation:
Name three different properties you can test before and after a chemical reaction
Answer:
reactivity, flammability, and if they rust
Question 6 of 10
Which of the following produces a physical change?
A. Leaving metal outside in the rain until rust forms on its surface
B. Turning wood into ash
C. Melting butter in a microwave
D. Combining carbon dioxide and water to make sugar
SUBMIT
Answer:
uhhh D .-.
Explanation:
Answer:C
Explanation:
Looking at the web above, each letter represents a species of animal in an ecosystem food web. Which of the following is most likely to cause the greatest decrease in the species B population.
A decrease in species C
A decrease in species E
A decrease in species D
A decrease in species A
Answer:
a decrease in species A is correct answers
5. Given the following unbalanced equation: N20(g) + O2(g) → NO2(g)
Answer:
2 N2O(g) + 3 O2(g) --> 4 NO2(g)
Explanation:
this is the chemical reaction balanced, if that was ur question.
Anyone know this
Please help me
Answer:
sorry I don't know
Explanation:
have a great time with your family and friends
The molar solubility of calcium sulfide in a 0.222 M sodium sulfide solution is:________-
Each of the following sets of quantum numbers is supposed to specify an orbital Choose the one set of quantum numbers that does NOT contain an error.
a) n=4, I=4, m/=1
b) n=5, I=3, m/=- 3
c) n=3, I=1, m/= -2
d) n=3, I= 2, m/=+3
Answer:
C
Explanation:
The correct answer is C because the first quantum numbers containing and encompass in an orbital m contain a definite she'll of 2 and hence
A 0.982-g sample of an unknown gas exerts a pressure of 700 mm Hg in a 450-cm3 container at 23oC. Calculate the molar mass of this gas. [1cm3 = 1mL; 1000mL = 1L]
Answer:
57.4 g/mol
Explanation:
Step 1: Convert 450 cm³ to L
We will use the conversion factors 1 cm³ = 1 mL and 1000 mL = 1 L.
450 cm³ × 1 mL/1 cm³ × 1 L/1 mL = 0.450 L
Step 2: Convert 23 °C to Kelvin
We will use the following expression.
K = °C + 273.15 = 23 + 273.15 = 296 K
Step 3: Calculate the number of moles of the gas
We will use the ideal gas equation.
P × V = n × R × T
n = P × V / R × T
n = 700 mmHg × 0.450 L / (62.4 mmHg.L/mol.K) × 296 K = 0.0171 mol
Step 4: Calculate the molar mass of the gas
0.982 g of the gas correspond to 0.0171 moles.
M = 0.982 g/0.0171 mol = 57.4 g/mol
Pasagot kailangan Asap
Answer:mmhm
Explanation:
mhhm
Answer:
do u want the answer now?
The table shows the thickness, top density, and bottom
density of the different layers of the Earth.
Which statement is supported by the information in the
table?
Thickness
(km)
Density
(g/cm)
Top Bottom
Types of Rock
Found
As depth increases, the density of the layers increases.
As depth increases, the density of the layers decreases.
As depth increases, the thickness of the layers
increases.
As depth increases, the thickness of the layers
decreases.
Crust
30
2.2
2.9
Silicic rocks
720
3.4
4.4
Upper
mantle
Peridotite
2,171
4.4
Lower
mantle
5.6
Magnesium and
silicon oxides
Outer
2,259
9.9
12.2
Iron+oxygen
core
1,221
12.8
13.1
Inner
core
Iron+oxygen
Se
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As depth increases, the density of the layers decreases.
Thanks.Hope it helps.The statement, that describes the thickness, top density, and bottom density of the different layers of the Earth is "as depth increases, the density of the layers decreases."
What is density layers of Earth?The density of the Earth's inner layers determines their order. The densest layer is the solid metal inner core, the mantle is of intermediate density, and the lithosphere, particularly the continental lithosphere, is the least dense layer.
Pressure rises as you go deeper. Mass/volume = density. As a result, as the volume drops, so does the density. Because of pressure, the strata beneath us become extremely dense. As a result, as the depth of the earth increases, so does the density.
Hence the correct answer is as depth increases, the density of the layers decreases.
Learn more about density layers of Earth here
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