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1 year ago

8

What is the source of the energy that causes electrons to be emitted from the surface?.

1 answer:

Pie1 year ago

8 0

Answer:

sunlight

Explanation:

it is the sunlight

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4. Describe the water conditions in the latitudes where coral reefs are found.<br> Help

Fofino [41]

Answer:

Most coral reefs lie between the latitudes of 30 degrees north and south where sea temperatures are warmest.
it is generally present in tropical and semi-tropical waters.

3 0

2 years ago

9.11 x 10^3 in standard notation?

Irina18 [472]

Answer:

the right answer is 9110

3 0

2 years ago

Read 2 more answers

Basic substances have a gritty texture.

crimeas [40]

<h3>1.<u> Answer;</u></h3>

False

<h3><u>Explanation;</u></h3>

Bases have some of the following properties;

They have a bitter taste
They have a slimy, or soapy feel on fingers

Most bases react with acids and precipitate salts.
Strong bases may react violently with acids.

Bases turn red litmus paper blue

<h3>2. <u>Answer;</u></h3>

An acid

<h3><u>Explanation;</u></h3>

When acids are dissolved in water, the concentration of the acid decreases and it becomes dilute.
It dissociates in water to give H+ ions or hydrogen ions.
All acidic solutions contain more hydrogen ions than hydroxide ions, therefore when added to water it increases the concentration of H+ ions in water, as water is a neutral substance whose concentration of H+ ions is equal to OH-.

5 0

2 years ago

Reactant(s)<br> H<br> 0,<br> Product(s)<br> H,0<br> 3.4g<br> 10g

zalisa [80]

Answer:

H,0

3.4g

Explanation:

H,0

3.4g

8 0

2 years ago

Li + HNO3 > LiNO3 + H2 how do I balance it? Show work pls

azamat

Answer: The balanced equation is $2Li + 2HNO_{3} \rightarrow 2LiNO_{3} + H_{2}$ .

Explanation:

The given reaction equation is as follows.

$Li + HNO_{3} \rightarrow LiNO_{3} + H_{2}$

Number of atoms present on reactant side are as follows.

Li = 1
H = 1
$NO_{3}$ = 1

Number of atoms present on product side are as follows.

Li = 1
H = 2
$NO_{3}$ = 1

To balance this equation, multiply Li by 2 and $HNO_{3}$ by 2 on reactant side. Also, multiply $LiNO_{3}$ by 2 on product side.

Hence, the equation can be rewritten as follows.

$2Li + 2HNO_{3} \rightarrow 2LiNO_{3} + H_{2}$

Now, number of atoms present on reactant side are as follows.

Li = 2
H = 2
$NO_{3}$ = 2

Number of atoms present on product side are as follows.

Li = 2
H = 2
$NO_{3}$ = 2

As there are same number of atoms on both reactant and product side. Hence, the equation is now balanced.

Thus, we can conclude that the balanced equation is $2Li + 2HNO_{3} \rightarrow 2LiNO_{3} + H_{2}$ .

3 0

2 years ago