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aleksandr82 [10.1K]

3 years ago

11

Example 2: Write the slope-intercept form of an equation for the line that passes through (-3.-2) and is perpendicular to y = 4x

+ 12.

1 answer:

Brilliant_brown [7]3 years ago

8 0

Answer:

bubu kayo mga tanga gago Mali ang sa got dito

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What law does a balanced chemical equation demonstrate?

DochEvi [55]

Answer:

The law of conservation of mass

Explanation:

A chemical equation is an expression of the net composition change associated with a chemical reaction. It shows how a certain amount of reactants yields a certain amount of products. Both of these amounts are measured in moles. Chemical equations often contain information about the state of the reactants: solid, liquid, gas, or aqueous. In addition, they always adhere to the law of conservation of mass, which holds that matter can change form, but cannot be created or destroyed.

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3 years ago

Periodic Trends<br>PLEASE HELP ME! I WILL GIVE BRAINLIEST

xz_007 [3.2K]

Answers:

A) Li

B) Ar

C) Br

D) Ne

E) B

5 0

4 years ago

Help please!!! My science homework is due in 2 days and I need help!

sertanlavr [38]

1) <em>Because the crystals do not have much time to develop if the lava cools fast, they are quite tiny. If the lava cools gradually, the crystals will have ample time to form and become huge. The size of crystals in an igneous rock is a good predictor of the conditions under which the rock developed. </em>

<em>2) Intrusive igneous rocks cool slowly from magma in the crust. They have a lot of crystals. Extrusive igneous rocks cool fast from lava near the surface. They are covered with tiny crystals.</em>

<em>3) Usually they will contain metal elements that oxidise easily. For example, the Igneous rocks on them Moon (the Maria or 'oceans') are darker in colour due to a higher percentage of iron.</em>

<em>4) The hue of igneous rocks is proportional to their density. Darker colored rocks have a higher density because they contain more material and iron. Light colored rocks have a lesser density because they contain less material and iron.</em>
<em>5) Magma is hot, molten rock under the earth's surface; lava is when magma reaches the earth's surface (it is then called lava).</em>
<em>6) The mineral grains with a pegmatitic texture are unusually big. The biggest ones are often more than 3 cm long. In intrusive rocks, this texture can be seen. The fact that they were particularly big did not imply that they cooled slowly.</em>
<em>7) Igneous rocks are classified according to their origin, texture and mineral composition. A igneous rock formed from lava that erupted on to earths surface.</em>

<em>~</em>

<em>ROR</em>

5 0

2 years ago

¿Cuáles son las características de los materiales de laboratorio? Por ejemplo: exactitud, resistencia a la temperatura, etc.

irina [24]

Answer:

gfchjklnmbvh

Explanation:

4 0

3 years ago

Read 2 more answers

Sergio039 [100]

Answer: is neither an acid nor a base

Explanation: Water is a universal solvent which means it can dissolve most of the substances in it.

Water has high thermal heat capacity , which means large heat is required to heat the water.

Water is not always pure as it gets contaminated by various pollutants present in the atmosphere such as gases, bacteria and suspended matter.

Water is an amphoteric substance which can act as both acid and base, thus can donate and acept [texH^+[/tex] ions.Thus it is neither an acid nor a base.

$HCl+H_2O\rightarrow H_3O^++Cl^-$

Here water is accepting a proton, thus it acts as base.

$NH_3+H_2O\rightarrow NH_4^++OH^-$

Here water is donating a proton, thus it acts as acid.

4 0

3 years ago