What is the name of the ionic compound LigPO,?
lanthanum phosphide
lanthanum phosphide
lithium phosphate
lanthanum phosphate

Answer:

n-heptane is your answer

Answer:

Hence, C5H12 is called pentane, C6H14 is called hexane, C7H16 is called heptane and so forth. Straight-chain alkanes are sometimes indicated by the prefix n- (for normal) to distinguish them from branched-chain alkanes having the same number of carbon atoms.

Explanation:

Answer:

The main cause of global convection currents is the uneven heating of the earth by the sun. Hope this helped! :)

The main cause of global convection current is differential heating, that is the temperature difference in different levels of  atmosphere.

Convection current  is the heat transfer by fluid movement in the earth crust between different temperature regions. The density of fluids differs due to the temperature gradients and thus heated fluids raises and cooled fluid sinks.

The heated fluid movement causes the movement of plates of earth. The molten rock deep inside the earth crust circulates by the convection current.

Hence, the main cause of global convection current is the differential heating of the atmosphere.

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Explanation: Atoms in Group 2A have 2 valence electron and lose 2 electron to gain an octet. These cations have +2 charge. Transition Metal Cations Electrons are removed from ns subshell before the (n-1)d subshell Fe atom = [Ar]4s23d6 Fe2+ ion = [Ar]3d6 Fe3+ ion = [Ar]3d5 The 4s electrons have been removed.

Answer:

east to west is the answer

Answer:

brittle is not a characteristic of medals.

Answer:

common sedimentary rocks include sandstone, limestone, and shale.

Answer:

6. Scientific inquiry - D

7. Hypothesis - E

8.  Control group - G

9. Experimental group - A

10. Independent variable - B

11. Dependent variable - H

12. Scientific theory - C

13. Scientific law - F

Explanation:

6. Scientific inquiry - D

Scientific inquiry is the study of the explanation for the natural world phenomenon and it requires many scientific steps.

7. Hypothesis - E

A hypothesis is a possible explanation for a phenomenon or problem. It is tested in order to see if true or not.

8.  Control group - G

The control group in a scientific experiment is a group of subjects did not get the treatment and left alone.

9. Experimental group - A

The experimental group is another hand group of subjects that gets treatment and shows the effect of the variable being tested.

10. Independent variable - B

Independent variables change or manipulated during an experiment and cause a response from the dependent variable.

11. Dependent variable - H

The dependent variable is a variable that is dependent on independent variables and changes in the independent variable.

12. Scientific theory - C

A well-tested explanation for experimental results with the scientific process.

13. Scientific law - F

This describes an observed pattern in nature

Answer: According to Boyle's Law, if the temperature remains constant, doubling the pressure will halve the volume of the gas.

Explanation:

Answer:

The six-row combin harvests 285 bushels of corn per hour.

Explanation:

The rule of three or is a way of solving problems of proportionality between three known values and an unknown value, establishing a relationship of proportionality between all of them. That is, what is intended with it is to find the fourth term of a proportion knowing the other three.

If the relationship between the magnitudes is direct, you can apply the following formula:

a ⇒ b

c ⇒ x

So: [tex]x=\frac{a*b}{c}[/tex]

In this case you can apply it in the following way: if 56 pounds is equal to 1 bushel, 266 pounds to how many bushels is it?

[tex]x=\frac{266 pounds*1 bushel}{56 pounds}[/tex]

x=4.75

This is, a six row combin harvests 4.75 bushels of corn per min.

So, being 1 hour equal to 60 minutes, you can apply the following rule of three: if in 1 minute a six-row harvester harvests , in 60 minutes how many bushels of corn it harvests?

[tex]bushels of corn=\frac{60 minutes*4.75 bushels of corn}{1minute}[/tex]

bushels of corn=  285

The six-row combin harvests 285 bushels of corn per hour.

Review your instructions

the answer of these question is weight

Answer:

lactic acid

Explanation:

and this is broken down by the enzyme lactase

Answer:

c = 0.38 J/(g-°C)

Explanation:

Given that,

Mass of copper, m = 5 g

Initial temperature, [tex]T_i=35^{\circ} C[/tex]

Final temperature, [tex]T_f=22.6^{\circ} C[/tex]

When copper cools, it looses 23.6 J of heat. We need to find the specific heat of copper. The heat lost is given by :

[tex]Q=mc\Delta T[/tex]

c is specific heat

[tex]c=\dfrac{Q}{m\Delta T}\\\\c=\dfrac{23.6}{5\times (22.6-35)}\\\\c=0.38\ J/g-^{\circ} C[/tex]

Hence, the correct option is d.

Answer:

Always add acid to a large volume of water. The solution may then be diluted with additional water to make one liter. You'll get an incorrect concentration if you add 1 liter of water to the acid.

An acid is concentrated solution hence, it should be added to considerable quantity of water. The required volume can then be adjusted by adding more water.

Acids form aqueous solution and have the property of electric conductivity. Acids reacts with other molecules by forming a covalent bond.

Acids are corrosive in nature, sticky to touch, tastes sour and have strong smell.

Acids can be qualitatively detected through litmus test. They turn blue litmus paper red. Their pH is < 7 on pH scale.

Acids can be classified as:

Chemically, acids can react with other metals, carbonates and bases. Common examples of acids are vinegar (acetic acid), hydrochloric acid (HCl), sulfuric acid (H2SO4) etc.

Acids are found in food items such as citrus fruits. Acetic acid is widely used in certain food preparations and as food preservative. Acids are commercially used in dyes, paints and in soft drinks.

Thus, acids are important in many chemical reactions.

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this is what i usually do -

this is what works best for me it may work different for you but using these methods i'm able to do well on tests without really memorizing much

hope that helps :)

Answer:

its good

Explanation:

it's great vsvhebejehsdhdbehhebehdbeh

Answer:  A

Explanation:

Answer:

C

Explanation:

Answer:Balance. Acid+metal->salt+hydrogen.1 molecule od zinc contains 1 zinc atom.2 molecule of HCl contains 2 atoms hydrogen and 2 chlorine.1 molecule of Zncl2 contain one atom of zinc and two atom of chlorine.And two 2 atoms of hydrogen.

Explanation:

Answer:

Xe

Explanation:

if ur talking about what it is for xenon

Answer:

A physical property is any property that is measurable, whose value describes a state of a physical system.

Explanation:

-color

-density

-volume

Answer:

The answer is

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

From the question

density of mercury = 13.6 g/mL

volume = 175 mL

The mass of the metal is

mass = 13.6 × 175

We have the final answer as

Hope this helps you

Answer:

its C

Explanation:

Answer:

The answer is

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\ [/tex]

From the question

mass = 35 g

volume = 7 cm³

The density is

[tex]density = \frac{35}{7} \\ [/tex]

We have the final answer as

Hope this helps you

Answer:

D) freezing

Explanation:Because hail sounds like it is hard and hail comes down and it hurts because it is freezing.

The hail can be defined as the conversion of the water to the ice. Thus, hail is an example of freezing.

The phase can be defined as the state of the matter. With the change in the temperature and the pressure values, the state of the matter, or the phase changes.

The hail has been the solid precipitation of the rain water. With the lowering of the temperature to the critical pressure, the water converts to ice.

The conversion of water to ice has been termed as freezing, Thus, hail is an example of freezing. Hence, option D is correct.

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