True or false The force of gravity acting on an object is measured by weight.

Answers

Answer 1

Answer:

true

Explanation:

we need gravity to stay on ground

Answer 2

Answer:

True.

Explanation:

Weight in a physics or scientific sense is defined mathematically as "mass times gravity." It is literally a measure of the force of gravity pulling mass downward towards Earth (or whatever object you're considering).


Related Questions

Select the chemical formula that contains 10 atoms of hydrogen.
2C4H10
2CH4
2C2H5
2C2H6

Answers

2C4H10 is your answer and you can verify this by looking at the H that has 10 after it

Silver nitrate reacts with calcium chloride as
shown.
2 AgNO3 + CaCl2 → 2 AgCl + Ca(NO3)2

How many grams of CaCl2 would be required to completely react with 420 mL of
0.506 M AgNO3 solution?
Answer in units of grams.

Answers

Answer: 11.8 grams of [tex]CaCl_2[/tex] is required.

Explanation:

To calculate the number of moles for given molarity, we use the equation:

[tex]\text{Molarity of the solution}=\frac{\text{Moles of solute}\times 1000}{\text{Volume of solution (in L)}}[/tex]     .....(1)

Molarity of [tex]AgNO_3[/tex] solution = 0.506 M

Volume of solution = 420 mL

Putting values in equation 1, we get:

[tex]0.506M=\frac{\text{Moles of} AgNO_3\times 1000}{420ml}\\\\\text{Moles of }AgNO_3=\frac{0.506mol/L\times 420}{1000}=0.212mol[/tex]

The balanced chemical reaction is:

[tex]2AgNO_3+CaCl_2\rightarrow 2AgCl+Ca(NO_3)_2[/tex]

2 mole of [tex]AgNO_3[/tex] requires = 1 mole of [tex]CaCl_2[/tex]  

0.212 moles of [tex]AgNO_3[/tex] require = [tex]\frac{1}{2}\times 0.212=0.106[/tex] moles of [tex]CaCl_2[/tex]

Mass of  [tex]CaCl_2[/tex] =[tex]moles\times {\text {Molar Mass}}=0.106mol\times 111g/mol=11.8g[/tex]

What do properties of matter tell us about a substance?

Answers

Answer:

Chemical properties of matter describes its "potential" to undergo some chemical change or reaction by virtue of its composition. What elements, electrons, and bonding are present to give the potential for chemical change. It is quite difficult to define a chemical property without using the word "change"

Explanation:

A compound and oxidant react to produce heat and a new product is what reaction

Answers

Answer:

A compound and oxidant react to produce heat and new product is chemical reaction.

helooo i need help please :)

Answers

It is a ,d and c just make sure tho

Enzymes in your body act as a catalyst. Thus the role of enzymes is to
O inhibit chemical reactions
o increase the rate of chemical reactions
O help you breathe
decrease the rate of chemical reactions

Answers

Increase the rate of chemical reactions. Enzymes act as catalyst which, by definition, speeds up a reaction. Enzymes help just a little more :)

what fault block that is located below the fault​

Answers

Answer:

it is called the foot block

PLEASE HELP ASAP
During convection heat is transferred through fluids. Which statement is true about fluids?

Only gasses are fluids
Only liquids are fluids
Only solids are fluids
Both liquids and gasses are fluids

Answers

both liquids and gasses are fluids is the answer

6CO2 + 6H20 → C,H120, + 602
6. How many molecules of CO2 are presenta
7. How many atoms of oxygen are present in the reactants?
8. How many atoms of carbon are present in the products
9. How many total atoms are present in C.H120,?
10. Is the equation above balanced or unbalanced?

Answers

Explanation:

The equation of the reaction is given as;

6CO2 + 6H2O → C6H12O6 + 6O2

How many molecules of CO2 are present?

6 moles

How many atoms of oxygen are present in the reactants?

(6 * 2) + (6 * 1 ) = 12 + 6 = 18

How many atoms of carbon are present in the products?

(6 * 1 ) = 6

How many total atoms are present in C6H12O6?

6 + 12 + 6 = 24 atoms

Is the equation above balanced or unbalanced?

This is a balanced equation since the number of atoms of the elements is the same in the reactant and products.

If the volume of an ideal gas is 22.5 L when it is at a temperature of 365 K, what will the volume be when the gas cools to 338K? Be sure to show your work and proper units.

Answers

Answer:

20.8L = Final volume of the gas

Explanation:

Based on Charles's law, the volume of a gas is directly proportional to the temperature of the gas under pressure constant. The equation is:

[tex]\frac{V_1}{T_1} =\frac{V_2}{T_2}[/tex]

where V is volume and T absolute temperature of 1, initial state and 2, final state.

If initial volume is 22.5L, initial T = 365K and final temperature 338K:

22.5L / 365K = V₂ / 338K

20.8L = Final volume of the gas

Can someone help me plz

Answers

i’m pretty sure the answer is C

(8.6 1029) 7.4 X1029)

Answers

Answer:

65563.914234

Explanation:

8.61029 x 7.4 x 1029

63.716146 x 1029

multiply

= 65563.914234

Which substance would be the strongest?
carbon
steel
gold
silver

Answers

Answer:

steel

Explanation:

Answer:

B. STEEL

Explanation:

What is the limiting reactant if 10 moles of NH 3 react with 30.0 moles of NO ?

Answers

Answer:

NO is the limiting reactant.

Explanation:

4NH3 + 6NO --> 5N2 + 6H2O

Molar ration NH3 : NO = 10: 30 = 1: 3

Stoichiometric molar ration NH3:NO = 4:6 = 2:3

NO is the limiting reactant.

Calculate the molarity of a solution that contains 85.0 g of Zn(C2H3O2)2 in 250. mL of solution (don't forget to convert mL to L first). Round to the nearest hundredth.

Answers

Answer:

[Zn(C₂H₃O₂)₂] = 1.85M (3 sig-figs accurate to 0.01 Molar)

Explanation:

Concentration is defined as amount of solute in a specified volume of solution. That is, Concentration = mass of solute/volume of solution (solution = solute + solvent). When concentration is in terms of Molar values the essential relationship is Molarity(M) = moles solute / volume of solution in liters.

For this problem => first, convert mass of Zn(C₂H₃O₂)₂ into moles and then the volume of solution into liters. Take ratio of moles/volume of solution (L).

=> Molar Concentration = moles of Zn(C₂H₃O₂)₂ / Liters of solution

moles of Zn(C₂H₃O₂)₂ = 85.0 grams Zn(C₂H₃O₂)₂ / formula weight of Zn(C₂H₃O₂)₂  =  85.0g/183.5g·mole⁻¹ = 0.463 mole Zn(C₂H₃O₂)₂.

Volume of solution in Liters = 250ml / 1000ml/L = 0.250 liters

Molarity of  Zn(C₂H₃O₂)₂ solution = 0.463 mole Zn(C₂H₃O₂)₂  /0.250 liters of solution = 1.85 Molar in Zn(C₂H₃O₂)₂

_____________

Note: The symbiology convention for 'molar solution concentration' is to place brackets around the molecular formula. That is, [Zn(C₂H₃O₂)₂] = 1.85M

What is the formula for silicon tetrachloride?
a
SiCl4
Ob
Si4Cl
С
Si₂C14
Od
SigCl₂

Answers

Answer:

[tex]\boxed {\boxed {\sf A. \ SiCl_4}}[/tex]

Explanation:

We are given the compound name: silicon tetrachloride.

Silicon is a metalloid and chlorine is a nonmetal, therefore we must use the rules of molecular compounds. Molecular compounds use prefixes to name the compounds. Break up the compound into 2 parts.

1. Silicon

The first element: silicon, has no prefix. Therefore, a prefix of mono (1) is implied.

2. Tetrachloride

The -ide suffix is added to the second element, so this is really chlorine. The prefix of tetra means 4.

So there is 1 silicon (Si) atom and 4 chlorine (Cl) atoms. The formula must be SiCl₄

Why is think chemistry is important? i need 5 paragraph please

Answers

Answer:

because it is so fundamental to our world . chemistry plays a role in everyone lives.

It touches almost every aspect of our existence in some way.

Chemistry is essential for meeting our basic needs of food, cloth, etc.

Chemistry plays a important and useful role towards the development and growth of industries.

chemistry also helps you become who you want to be.

What do the colors of light combine to make _______________ light.

Answers

the answer is dure light I'm not sure of this answer ,but it might be to go with .

What is the percent composition of Br in CuBr3?

Answers

Answer:

about 79% (79.04369332 to be exact)

Explanation:

Percent composition=(Molar mass of element x amount of it)/Molar mass of compound x 100

Br= 3 x 79.9/303.25 x100=79.04369332

Balance the equation by typing in the correct coefficients into the blank spaces in front of each formula. Type 1 if
the coefficient is 1, do not leave space blank
_EH + _ G2 → _EG + _HG2

Answers

Answer:

2 in front of every one

Explanation:

HOPE IT HELPS

3. Which of the following do all living organisms have in common? A. Cells held up by cell walls B. The method to get water and food into their cells C. Cells are made from pre-existing cells D. Special cells that can do many different things​

Answers

C. Cells are made from pre-existing cells. :) Glad I can help

Ripromano
To help ripromano Sorry email won't work on the school computer had to do it this way. Hope this is the right project

Answers

Answer:

Socrates was a Greek philosopher, considered one of the most important, a master of Plato, who called Aristotle a disciple

Explanation:

PLS HELP URGENT
Electron dot diagrams
Use your periodic table to write the electron dot diagrams for the following atoms.
1. Calcium (Ca)
2. Polonium (Po)
3. Moscovium (Mc)
4. Boron (B)
5. Fluorine (F)

Answers

i think i’d is calcium

At what point in the cooking process is food typically seared?

Answers

Answer: when you look at the meat, and it looks beautiful like a crispy donut made by Gordan Ramsay

Explanation:

Hells Kitchen is kewl

PLZ HELP WILL BRAINLIEST balance the following equation: N2 + H2 --> NH3
Write the coefficients that you decide to balance the equation like this 3, 4, 3. If you do not add a coefficient in front of an element or compound, use a 1 in your answer. For instance the for this balanced equation: 2H2 + O2 --> 2H2O you would write your answer: 2, 1, 2

Answers

Answer:

1,3,2

Explanation:

N2 + 3H2-----> 2NH3

Help me please
Answer & exp.

Answers

Explanation:

Some Rules Regarding Oxidation Numbers:

- Hydrogen has oxidation number of + 1 except in hydrides where it is -1

- Oxygen has oxidation number of -2 except in peroxides where it is -1

- Some elements have fixed oxidation numbers. E.g Halogen group elements has oxidation number of -1

- Oxidation number of a compound is the sum total of the individual elements and a neutral  compound has oxidation number of 0.

A. HI

Hydrogen has oxidation of + 1

Oxidation number of I:

1 + x = 0

x = -1

B. PBr3

Br has oxidation number of - 1

Oxidation number of Pb:

x + 3 (-1) = 0

x = + 3

C. KH

Hydrogen has oxidation of + 1

Oxidation number of K:

1 + x = 0

x = -1

D. H3PO4

Hydrogen has oxidation number of + 1

Oxygen has oxidation number of -2

Oxidation number of P:

3(1) + x + 4(-2) = 0

3 + x - 8 =0

x = 5

C.
A 35.5 g cube of aluminum initially at 48.5° C is submerged into 105.3 g of water at 15.4
What is the final temperature of both substances at thermal equilibrium?

Answers

Answer:

The final temperature of both substances at thermal equilibrium is 17.3°C

Explanation:

To calculate the final temperature of both substances at thermal equilibrium -:

First , we calculate the heat of A1  cube as follows -

            q= mSΔT

(where q = heat of the cube , m = mass of cube , S= specific heat of cube  {0.902j/g°C}, T = Temperature )

Putting the values given in the question ,

        [tex]q= 32.5g\times0.902\j/g[/tex]°[tex]C[/tex][tex]\times(T_f-45.8[/tex]°[tex]C)[/tex]

            [tex]29.315\times(T_f-45.8)J[/tex]

Now , calculate the heat of water -

         q=mSΔT

Putting values from the question ,

           [tex]q=105.3g\times4.18j/g[/tex]°[tex]C[/tex][tex]\times (T_f-15.4[/tex]°[tex]C)[/tex]

              =[tex]440.154\times(T_f-15.4)J[/tex]

          Now ,

Heat lost by water A1= Heat gained by water [negative sign about heat lost]

         [tex]-29.315\times(T_f-45.8)J[/tex] [tex]=440.154\times(T_f-15.4)J[/tex]

            [tex]\frac{-(T_f-45.8)J}{T_f-15.4)J} =\frac{440.154}{29.315}=15.0[/tex]

      [tex]-T_f+45.8[/tex]°[tex]C=15T_f-231.2[/tex]°[tex]C[/tex]

       [tex](45.8+231.2)[/tex]°[tex]C[/tex]=[tex]16T_f[/tex]

        [tex]16T_f=277.03[/tex]°[tex]C[/tex]

       [tex]T_f=\frac{277.03}{16}[/tex] = 17.3°C

Therefore , the final temperature of both substances at thermal equilibrium is 17.3°C

             

What type of reaction is shown here?
2 NO2-202 + N2
O Double replacement
O Combustion
O Decomposition
O Single replacement
Synthesis

Answers

The given reaction is the type of Decomposition reaction. A decomposition reaction occurs when one reactant splits into many products.

What does a reaction's breakdown entail?

Chemistry reaction reactions of decomposition. Decomposition reactions occur when complex chemical entities split apart into smaller components. Decomposition reactions often demand energy input.

What are the names for decomposition reactions?

Decomposition reactions are those that divide or break the compounds into two simpler products. Because two or more reactants are combined to create a single product in a combination reaction, they are known as the reverse of combination reactions.

The exothermic nature of a decomposition reaction is why?

It entails the severing of ties. Energy is necessary to dismantle the bonding between atoms. Decomposition advances when energy in the form of heat or electricity is provided. As the bond is broken during this reaction, energy is given to them, making them endothermic processes.

To know more about the decomposition reaction visit:

https://brainly.com/question/16728382

#SPJ1

What element is steel mainly composed of?
A. Iron
B. Carbon
C. Manganese
D. Silver​

Answers

B. carbon

Hope this helps :)

El acero esta compuesto por Hierro y Carbono

In a given population, which members are most likely to survive and produce offspring?

Answers

Answer:

Those individuals with advantageous traits are more likely to survive and reproduce. The survivors pass down these advantageous traits to their offspring.

Explanation:

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